February 2010 - Southeastern GTO Association
Contents
1. President s Note I am sure the freezing weather and ice kept most people indoors for the January Saturday SEGTOA meeting Still I was truly surprised at the number of families and mothers with kids packing into the Andretti racing complex for a day of speed and games Members that made the meeting were Jon Ward and Son Sol Danzig with son and daughter John Link Steve Pullen David Peebles Denny Sanford and myself At 2 00 pm we still completed the planned tech session and wound down the day with a late lunch and fellowship at Longhorns Steak house So a lot of people did miss a good day We hope to see more members for the February Valentine s weekend The planned tech session will be on detailing your trunk Attached in the newsletter pages 12 13 is the outline from the January tech session The application for the annual April BOP amp C car show can now be seen and downloaded from the SEGTOA web site Jim Norman Editors note the updated BOP amp C registration form was also sent to you as a separate pfd file attachment together with the newsletter Inside this issue Board Members amp Advisory Panel 2 February Club Meeting 3 SEGTOA 2010 Meeting Schedule 4 2010 BOP amp C 5 For Want of a Shoe the Horse Was Lost 6 What Is Detonation 7 9 How Not to Restore a GTO Update 10 11 January Meeting The Great Race 11 January Club Meeting Recap 12 January Tech Session Outlin2. stallation 3 Owner takes the Reatta to a GM dealer for the window replacement 4 Window not tinted so owner takes car to tinting place to have tinted 5 Either the dealer or the tinting place drop the aforementioned screw inside the door and can t find it so they just use another screw 6 Screw finds it s way into the door latch assembly Of course GM no longer makes the passenger side latch assy they have the drivers side Which means waiting for a used latch assembly etc Yes for those of you who would ask I did retrieve the pop rivet ends and all I hope other debris in the door Thanks to Ed Bellair who helped me compare old and new latch assemblies to be sure I wouldn t have to do this again Hope all of you are retrieving all those dropped missing pieces when you work on even the minor items on your cars From USA Today Drive On CNG powered Pontiac GTO to Get Kicks on Route 66 Courtesy of David Trees Here s your basic cool idea Mark McConville has converted a stunning red 1966 Pontiac GTO to run on compressed natural gas CNG is an abundant all American and clean fuel And apparently the GTO was able to retain a lot of its performance To prove the point McConville is planning to run the GTO along the complete Route 66 in June He ll start in Santa Monica Calif and end in Chicago on July 4 At least that s the plan He showed off his car at the Barrett Jackson auction in Scottsdale Ariz last weeken
3. car show amp swap meet Marietta Convention Center LW crete 29 Annual Peach Blossom B O P C Buick Oldsmobile Pontiac Cadillac Car Show and Swap Meet Hosted by the Peach State Cadillac amp LaSalle Club of Atlanta Join us Friday Check In and Saturday Car Show April 23 and 24 2010 Show Location and Host Hotel this year is the Hilton Atlanta Marietta Hotel amp Conference Center Located at 500 Powder Springs Street Marietta GA 30064 770 427 2500 We have set up a great rate of 89 per night for all Club Members Please call the Hotel to make your Reservations no later than April 1 and use the code BOPC to get the approved room rate Directions to the Hotel From the North Take I 75 South to Exit 263 N Marietta Parkway 120 Loop Turn right on the 120 Loop 2 5 miles to Power Springs Street and turn left CVS Pharmacy on the corner The entrance to the Hilton will be on the right about 1 4 mile From the South Take I 75 North to Exit 263 N Marietta Parkway 120 Loop Follow straight ahead and merge on to the 120 Loop 2 5 miles to Powder Springs Street and turn left CVS Pharmacy on the corner The entrance to the Hilton will be on the right about 1 4 mile For additional Show Information please contact Lewis Schwartz at 404 558 5139 LHS36 aol com Martina Butler at 678 643 0187 martina butler gmail com All Judging will begin at Noon on Saturday There will be 24 Trophies presented and 1 Be
4. session June 12 2010 Chattahoochee River Club Donahue Picnic with a tech session July 10 2010 Riverstone Parkway cruise located in Canton GA Usually over 200 cars of all makes amp models August 14 2010 Fayetteville GA event to be determined Give us your suggestions September 11 2010 Year One car show amp Rally October 9 2010 Amelia Island November 13 2010 Stone Mountain GA car museum December 11 2010 Christmas party Other events February 7 Sunday 7 30am to 11 30am Car cruise at the Avenue Roswell Rd and Johnson Ferry Rd 12 Friday Cruise Chick fil A 2005 Macland Rd Marietta 19 Friday Cruise Zaxby s 4410 Brownsville Rd Powder Springs 27 Saturday Cruise Bojangles 12100 Hwy 92 Woodstock March Fie Sunday 7 30am to 11 30am Car cruise at the Avenue Roswell Rd and Johnson Ferry Rd 12 Friday Cruise Chick fil A 2005 Macland Rd Marietta 19 Friday Cruise Zaxby s 4410 Brownsville Rd Powder Springs 20 Saturday Car Show Cops amp Rodders Indoor Atlanta Expo 27 Saturday Cruise Bojangles 12100 Hwy 92 Woodstock April 3 Saturday Car Show Georgia Tech Auto 4 Sunday 7 30am to 11 30am Car cruise at the Avenue Roswell Rd and Johnson Ferry Rd 9 Friday Cruise Chick fil A 2005 Macland Rd Marietta 16 Friday Cruise Zaxby s 4410 Brownsville Rd Powder Springs s Saturday Car Show Southland Jubilee Greensboro 23 and 24 29th Annual Peach Blossom B O P C
5. was ready to go David Peebles almost immediately past me as I started out in front As I got familiar with the go cart I watched David getting further and further ahead My one goal was to not let him lap me As I powered out of the turns then slid in the turns I got quicker and quicker David Peebles never came back in sight as the race ended I found out why He had been directly behind me most of the race unable to pass Mission accomplished Denny said he didn t race because he couldn t get out of the go cart once he got in but I think he was worried about getting bested by David Peebles Sorry no photos we re guys A Cool Web Link Courtesy of Dennis Donahue Ride along on a Lockheed U 2 spy plane and check out the amazing view cruising at 70 000ft as the sky above turns black http propilotnews com 2009 07 high flight really high flight html Page 11 January Club Meeting By Jon Ward Our first meeting of 2010 was the first SEGTOA meeting in January not to be bowling that I can remember and it was a great change of pace We met at Andretti Speed Lab in Roswell for some racing and tech talk and it was the perfect place for me to take my son for his first carting experi ence Andretti s has both junior and senior tracks available so I was able to teach my son on the junior track and then test my skills on the senior one Both were fun but the senior track is much faster and the cold January air that flows through bo
6. 053 Services available Smitty s Engraving 877 626 2321 Awards of all types Dash Plaques Engraving all types of Jewelry Knives and even some Auto and Bike Parts Dia mond and Laser Engraving We also are Dealer for BCI Performance Barnett Perform ance and Year One so I maybe able to save members a few bucks on parts Thanks Smitty Roy Smith For sale Service manual and Fisher body manual for 69 Pontiacs 90 00 Full line brochure for 69 Pontiacs 20 00 Lemans fender protector 20 00 Or all 3 100 00 John Link cell 404 578 8973 SEGTOA Merchandise Now Available Contact Barry Dameron bdameron segtoa org or 770 505 2919 for availability of sizes Hats 20 00 plus shipping One size fits all buckle in back Shirts 20 00 plus shipping Men s white or gray Women s white only If you want something that is not offered please feel free to make a suggestion Page 15 For sale Latest GMP die cast 1970 GTO Judge Orbit Orange 120 00 new unopened including shipping 10 additional dis count for two or more Surf City Garage car care product The Perfect Shine pack age 49 99 retail GTO Club 29 99 Surf City Garage car care product Tool Box 89 99 re tail 69 99 Chuck Heastings GMP amp Surf City Garage dealer 770 827 7882 Chuck LegendaryGarage com Get one before you re too old to understand The Great One by Pontiac
7. ARPET Underlayment Floor wiring Automatic manual DOOR PANELS Liner Arm rest Handle Window crank Electric switches Courtesy lights CONSOLE Automatic Center piece Trim pieces Manual Box Lid Shifter MATERIALS Paint Hog rings Hog ring pliers SUPPLIERS fair excellent good good excellent good good fair fair good excellent fair excellent good fair excellent good fair excellent fair good good not available Year One Braselton GA 1 800 932 7663 Performance Years Hatfield PA 1 800 542 7278 Ames Performance Engineering Spofford NH 1 800 421 2637 Original Parts Group Seal Beach CA 1 800 243 8355 The Paddock Knightstown IN 1 800 428 4319 EBAY Over 20 GTO Suppliers Legendary Auto Interiors Newark NY 1 800 363 8804 Page 13 Classified Section For Sale GTO 1968 CONVERTIBLE Meridian Turquoise PHS rebuilt 400cid automatic ps power discs dual exhaust 38 950 See www fraserdante com for full details and photos on these and other vehicles for sale For sale 1967 GTO CONVERTIBLE Owned for 39 years original numbers matching one of 350 with factory 2 bbl turbo 400 trans Hurst dual gate 400 engine T 3 headlights original chrome and stainless original interior except carpet everything works except clock Red plastic fender liners Protect o Plate PHS all manuals glossy yellow enamel black top in near new condition clear back window Hooker
8. c fuel injection because the oxygen and barometric pressure sen sors compensate for changes in air density and fuel ratios 10 Remove carbon deposits An accumulation of carbon deposits in the combustion chamber and on the top of the pistons can increase compression to the point where detonation becomes a problem Carbon deposits are a com mon cause of detonation in high mileage engines and can be especially thick if the engine consumes oil because of worn valve guides and seals worn or broken piston rings and or cylinder wear Infrequent driving and not changing the oil often enough can also accelerate the buildup of deposits Page 8 In addition to increasing compression carbon deposits also have an insulating effect that slows the normal transfer of heat away from the combustion chamber into the head A thick layer of deposits can therefore raise combustion tem peratures and contribute to pre ignition as well as detonation Carbon deposits can often be removed from an engine that s still in service by using a chemical top cleaner This type of product is poured into an idling engine through the carburetor or throttle body The engine is then shut off so the solvent can soak into and loosen the deposits When the engine is restarted the deposits are blown out of the combustion chamber If chemical cleaning fails to remove the deposits it may be necessary to pull the cylinder head and scrape the deposits off with a wire brush or scraper b
9. d Page 6 What Is Detonation Courtesy of Bob Mohalley Detonation also called spark knock is an erratic form of combustion that can cause head gasket failure as well as other engine damage Detonation occurs when excessive heat and pressure in the combustion chamber cause the air fuel mixture to auto ignite This produces multiple flame fronts within the combustion chamber instead of a sin gle flame kernel When these multiple flames collide they do so with explosive force that produces a sudden rise in cylinder pressure accompanied by a sharp metallic pinging or knocking noise The hammer like shock waves cre ated by detonation subject the head gasket piston rings spark plug and rod bearings to severe overloading Mild or occasional detonation can occur in almost any engine and usually causes no harm But prolonged or heavy detonation can be very damaging So if you hear knocking or pinging when accelerating or lugging your engine you probably have a detonation problem A DOZEN WAYS TO PREVENT DETONATION 1 Try a higher octane fuel The octane rating of a given grade of gasoline is a measure of its detonation resistance The higher the octane number the better able the fuel is to resist detonation Most engines in good condition will run fine on regular grade 87 octane fuel But engines with high compression ratios over 9 1 turbochargers super chargers or with accumulated carbon deposits in the combustion chamber may requir
10. d and encouraged to attend each monthly club function CLUB MEMBERSHIP DUES Dues are 20 SEGTOA amp 35 GTOAA per year payable January 1 each year New Members receive a 10 discount on combined membership their first year Checks should be made payable to Southeastern GTO Association and mailed to Ed Bellair Club Treasurer 3301 Stoney Acres Drive Kennesaw GA 30152 4615 Members must be in good standing to attend meetings with the option to bring their membership up to date at any scheduled meeting Membership in GTOAA is strongly encouraged SEGTOA TECHNICAL ADVISORY PANEL The members listed below have volunteered to share their special knowledge with other members Please feel free to contact these involved members Happy Vateutine s Day Doug Ask 1964 ba act t daskew segtoa org Tim Askew 1965 Jerry Hamilton jhamilton segtoa org y A 1966 Bob Immekus bimmekus segtoa org OVE I APA 1967 Jon Ward jward segtoa org ALL YOU AX I D 1968 Denny Sanford dsanford segtoa org AL S e SG 1969 Russell DeLamater rdelamater segtoa org 1970 Jim Norman jnorman segtoa org 1971 Terry Hunt thunt segtoa org 2004 06 Pa 2010 February Club Meeting Saturday February 13th What A tech session on detailing the trunk followed by a lunch When February 13 2010 1 00 pm Where Benihana s Restaurant North Point Mall 2365 Mansell Road Alpharetta GA 678 461 8440 We will hold the tech session in the park
11. e 12 13 Classified Section 14 15 Jim Norman President jnorman segtoa org Bob Immekus Board Member bimmekus segtoa org OFFICERS AND BOARD MEMBERS The members listed below have been elected and or volunteered to act on your behalf in their respective positions Denny Sanford Vice president dsanford segtoa org John Link Past Presi dent Board Member jlink segtoa org Ed Bellair VP treasurer 3301 Stoney Acres Dr Kennesaw GA 30152 ebellair segtoa org David amp Eija Trees VP Newsletter Editors dtrees segtoa org Jon Ward VP Membership jward segtoa org Barry Dameron VP Merchandize bdameron segtoa org David Peebles VP Meetings dpeebles segtoa org Pam Immekus VP Webmaster and Secretary pimmekus segtoa org TIGER TALES Published monthly by the Southeastern GTO Association Welcome SEGTOA is a chapter of the GTO Association of America www gtoaa org the premier organization for GTO enthusiasts Each month GTOAA members receive The Legend Magazine a Golden Quill Award Winning publication SEGTOA is an organization dedicated to the survival of the Pontiac GTO LeMans and any other Pontiac muscle SEGTOA is open to anyone who shares our common interest in GTOs and other Pontiacs We enjoy Chapter meetings monthly including cruises car shows picnics technical sessions and other fun activities Our members hail from four different states Members and their spouses significant others kids are invite
12. e 67 is still painted silver and now is sporting an air cleaner with a Chevy 400 4 decal The fan shroud is now painted black The painted red cap is still on the PS unit and the PS is not hooked up The alternator has been replaced There is still the variety of brightly colored wire looming It does look like an original style distributor and wires have been added The trunk looks cleaner over the rust The interior still s ENGINE REP A MTED Cov Ran CHAR FUREOUES FAN SHERKLD REPRINTED fiir tNATOR HRED dP LORONG THEE IS SML P BREREL vo ET CHRB FP CLEANER tof YR THY NOTICE BLO PS CAP NOT pldOL CD UP KO DYMELRGT NON Page 10 7 RUNE CLEANER w BONDO January Meeting The Great Race By John Link What a great place to have the January meeting Those of you who missed the meeting really missed a chance to have a great time Yes it was cold yes there was still a little ice on the road but the go carts were hot Jon Ward s son was ready to start on the short track when I got to Andretti s and Jon was planning on running on the fast track I had my doubts about trying the fast track but it looked like fun I m sure Jon s son enjoyed the short track and I know I enjoyed the fast track David Peebles and I suited up for our time slot head sock helmet and gloves I already had my fireproof long johns on the weather required long johns and chili dogs require they be fireproof so I
13. e 89 or higher octane fuel How a vehicle is used can also affect its octane requirements If a vehicle is used for towing or some other applica tion where the engine is forced to work hard under load a higher octane fuel may be necessary to prevent detona tion If switching to a higher octane fuel fails to eliminate a persistent detonation problem it probably means some thing else is amiss Anything that increases normal combustion temperatures or pressures leans out the air fuel mixture or causes the engine to run hotter than normal can cause detonation 2 Check for loss of EGR The Exhaust Gas Recirculation EGR system is one of the engine s primary emission controls Its purpose is to reduce oxides of nitrogen NOX pollution in the exhaust It does this by leaking re circulating small amounts of exhaust into the intake manifold through the EGR valve Though the gases are hot they actually have a cooling effect on combustion temperatures by diluting the air fuel mixture slightly Lowering the combustion temperature reduces the formation of NOX as well as the octane requirements of the engine If the EGR valve is not opening either because the valve itself is defective or because its vacuum supply is blocked loose plugged or misrouted vacuum hose connections or a defective vacuum control valve or solenoid the cool ing effect is lost The result will be higher combustion temperatures under load and an increased chance of detona tion Re
14. e careful not to scratch the face of the cylinder head or engine deck 11 Check the boost pressure Controlling the amount of boost in a turbocharged engine is absolutely critical to pre vent detonation The turbo wastegate bleeds off boost pressure in response to rising intake manifold pressure On most late model engines a computer controlled solenoid helps regulate the operation of the wastegate A malfunction with the manifold pressure sensor the wastegate control solenoid the wastegate itself or a leak in the vacuum connections between these components can allow the turbo to deliver too much boost which destroys the head gasket as well as the engine in short order if not corrected Improved intercooling can help reduce detonation under boost The inter cooler s job is to lower the incoming air temperature after it exits the turbo compressor Adding an intercooler to a turbo motor that isn t intercooled or installing a larger or more efficient intercooler can eliminate detonation worries while also allowing the engine to safely handle more boost 12 Change your driving habits Instead of lugging the engine try downshifting to a lower gear and or accelerating more gradually Keep in mind too that the engine and drive train have to be matched to the application If you re working your engine too hard perhaps you need a transmission with a wider gear ratio or a higher final drive ratio in the differential Another condition that is sometim
15. e to refer to the appropriate diagnostic chart in a service manual and follow the step by step test procedures to isolate the cause Sometimes a knock sensor will react to sounds other than those pro duced by detonation A noisy mechanical fuel pump a bad water pump or alternator bearing or a loose rod bear ing can all produce vibrations that can trick a knock sensor into retarding timing 6 Read your spark plugs The wrong heat range plug can cause detonation as well as pre ignition If the insula tors around the electrodes on your plugs appear yellowish or blistered they may be too hot for the application Try the next heat range colder spark plug Copper core spark plugs generally have a broader heat range than ordinary plugs which lessens the danger of detonation 7 Check for engine overheating A hot engine is more likely to suffer spark knock than one which runs at normal temperature Overheating can be caused by a low coolant level a slipping fan clutch too small a fan too hot a thermostat a bad water pump or even a missing fan shroud Poor heat conduction in the head and water jackets can be caused by a buildup of lime deposits or steam pockets which can result from trapped air pockets 8 Check the operation of the heated air intake system The thermostatically controlled air cleaner s job is to pro vide a carbureted engine with hot air when the engine is cold started This aids fuel vaporization during engine warm up If the a
16. es confused with detonation is pre ignition This occurs when a point within the combustion chamber becomes so hot that it becomes a source of ignition and causes the fuel to ignite before the spark plug fires This in turn may contribute to or cause a detonation problem Instead of the fuel igniting at the right instant to give the crankshaft a smooth kick in the right direction the fuel ig nites prematurely early causing a momentarily backlash as the piston tries to turn the crank in the wrong direction This can be very damaging because of the stresses it creates It can also localize heat to such an extent that it can par tially melt or burn a hole through the top of a piston Pre ignition can also make itself known when a hot engine is shut off The engine may continue to run even though the ignition has been turned off because the combustion chamber is hot enough for spontaneous ignition The engine may continue to run on or diesel and chug erratically for several minutes To prevent this from happening some engines have a fuel cutoff solenoid on the carburetor to stop the flow of fuel to the engine once the ignition is turned off Others use an idle stop solenoid that closes the throttle completely to shut of the engine s air supply If either of these devices is misadjusted or inoperative run on can be a problem En gines with electronic fuel injection don t have this problem because the injectors stop spraying fuel as soon as the
17. fer to a service manual for the configuration and hose routing of your engine s EGR system and the recom mended procedure for checking the operation of the EGR system 3 Keep compression within reasonable limits A static compression ratio of 9 1 is usually the recommended limit for most naturally aspirated street engines though some newer engines with knock sensors can handle higher com pression ratios Compression ratios over 10 5 1 may create a detonation problem even with 93 octane premium gasoline So unless an engine is being built to run on racing fuel keep the compression ratio within a reasonable range for pump gasoline This in turn may require using lower compression pistons and or cylinder heads with larger combustion chambers Another option would be to use a copper head gasket shim with the stock head gasket to reduce compression Retarding the cam timing can also lower cylinder pressures to reduce detonation at low r p m but doing so hurts low speed torque which is not recommended for street engines or cars with automatics For supercharged or turbocharged applications a static compression ratio of 8 1 or less may be required depending on the amount of boost pressure Another point to keep in mind is that boring an engine s cylinders to accept over sized pistons also increases the static compression ratio So too does milling the cylinder heads If such modifica tions are necessary to compensate for cylinder wear head warpage or da
18. fully wired for your music brand new bumpers no rust nowhere on da car 442 ram air hood 442 wing on the trunk posi traction floor shifter duel exhaust this is an a c car with headers The car is candy purple needs wet sanding and buffing Drives great For pictures visit http atlanta craigslist org sat cto 1514088444 html DAYLO 404 781 6821 Wanted 66 GTO starter part 1107355 with a 6 F 1 to 6 F30 date code core or rebuilt unit Will consider a 6 G 1 to 6 G14 date code Any help would be greatly appreciated Call Lloyd Paro 11512 at 413 786 0612 or e mail to lwpat212 msn com For free I have some minor parts for a 2006 GTO that I will give away if some is willing to pick them up in Dunwoody They are OEM shifter OEM air intake OEM trunk lid panel I m going to discard these items and I would hope someone could use them Perry Banks Email perry banks comcast net Page 14 Classified Section Services available Ed Sculley High End Detailing To achieve excellence excellence can not be rushed Technique is just as important as the product used While my approach takes more time the results are far superior We are a complete mobile shop on wheels servicing your car where YOU are All services performed at your HOME or OFFICE Our detailing is available Monday Saturday No detailing is done on Sunday For details on service packages available go to www highenddetail com or call 404 667 5
19. igni tion is turned off CAUSES OF PRE IGNITION Carbon deposits form a heat barrier and can be a contributing factor to pre ignition Other causes include An over heated spark plug too hot a heat range for the application Glowing carbon deposits on a hot exhaust valve which may mean the valve is running too hot because of poor seating a weak valve spring or insufficient valve lash A sharp edge in the combustion chamber or on top of a piston rounding sharp edges with a grinder can eliminate this cause Sharp edges on valves that were reground improperly not enough margin left on the edges A lean fuel mix ture Low coolant level slipping fan clutch inoperative electric cooling fan or other cooling system problem that causes the engine to run hotter than normal Page 9 How Not to Restore a GTO Update By Jim Norman This is an update to the story that first appeared in the December newsletter The car was sold to New York and can now be had for 15 500 or Make An Offer See the new photos And from the new photos some work has been done to clean up the overall car appearance Judge Strips and Spoiler are added Engine and intake have been repainted Robin Egg blue wrong color The radiator return hose is no longer green Power brake booster and master cylinder are now painted silver Engine compartment and core support are repainted black Dynomat is removed from the fender wells The 2 barrel carb from th
20. ing lot from 1 00 pm until 2 00 pm then lunch immediately afterwards at the restaurant Directions For those with GPS navigation Benihana 2365 Mansell Rd Alpharetta GA 30022 For those with older GTO s If North on GA 400 take the Mansell Rd exit Turn right and it is the first right If South on GA 400 take the Mansell Rd exit Turn left crossing beneath GA 400 and it is the first right The Allure of Automobile Exhibition The High Museum of Art in Atlanta has invited AACA members to a special show of the rarest and limited edition cars Rolling works of art design and engineering The show runs from March 21st till June 20th Some of the cars on display have been owned by Clark Gable amp Steve McQueen Group discount tickets are 13 min group size 10 If your interested please let me know and I ll get tickets for the club members I have talked to them already and we need to move on this ASAP as tickets are going fast You can find more information on the show at http www high org main taf p 4 3 2 amp eventIlId 333 amp eventTypeld 1 Roy Smitty Smith E mail smithsgtos gmail com Page 3 SEGTOA 2010 Activities Calendar Club meetings Saturdays unless otherwise noted March 13 2010 Indoor shooting range with a tech session afterward Location to be determined April 10 2010 Detailing tech session Location to be determined May 08 2010 Tennessee Aquarium possible AA baseball game amp a tech
21. ir control door sticks shut or is slow to open so that the carburetor continues to receive heated air after the engine is warm the added heat may be enough to cause a detonation problem especially during hot weather Check the operation of the air flow control door in the air cleaner to see that it opens as the engine warms up No movement may mean the vacuum motor or thermostat is defective Also check the heat riser valve to make sure it s opening properly as it too can affect the air intake system 9 Check for a lean fuel mixture Rich fuel mixtures resist detonation while lean ones do not Air leaks in vacuum lines intake manifold gaskets carburetor gaskets or the induction plumbing downstream of a fuel injection throttle can all admit extra air into the engine and lean out the fuel mixture Lean mixtures can also be caused by dirty fuel injectors carburetor jets clogged with fuel deposits or dirt a restricted fuel filter or a weak fuel pump If the fuel mixture becomes too lean lean misfire may occur as the load on the engine increases This can cause a hesitation stumble and or rough idle problem as well The air fuel ratio can also be affected by changes in alti tude As you go up in elevation the air becomes less dense A carburetor that s calibrated for high altitude driving will run too lean if driven at a lower elevation Altitude changes are generally not a problem with engines that have electronic feedback carburetors or electroni
22. mage you may have to use a thicker head gasket if one is available for the application or a head gasket shim a dead soft copper spacer shim to offset the in crease in compression Page 7 4 Check for over advanced ignition timing Too much spark advance can cause cylinder pressures to rise too rap idly If resetting the timing to stock specifications doesn t help retarding the timing a couple of degrees and or re calibrating the distributor advance curve may be necessary to keep detonation under control 5 Check for a defective knock sensor Many late model engines have a knock sensor on the engine that responds to the frequency vibrations characteristically produced by detonation typically 6 8kHz The knock sensor pro duces a voltage signal that signals the computer to momentarily retard ignition timing until the detonation stops If the check engine light is on check the vehicle s onboard computer system using the prescribed procedure for a trouble code that would correspond to a bad knock sensor code 42 or 43 for GM code 25 for Ford or code 17 for Chrysler A knock sensor can usually be tested by rapping a wrench on the manifold near the sensor never hit the sensor itself and watching for the timing change while the engine is idling If the timing fails to retard the sensor may be defective or the problem may be within the electronic spark timing control circuitry of the computer itself To determine the cause you ll hav
23. st of Show at 2PM All cars need to have a Fire Extinguisher to gain admittance to the Show Field and be eligible for Judging Please place behind the left rear wheel Page 5 For Want of a Shoe the Horse Was Lost for Want of a Horse the Rider Was Lost etc etc By John Link We all know the outcome of this poem but it applies to cars as well The safety experts will tell you most accidents are really a sequence of events that add up to the accident If you ve worked on cars for any time you ve seen this happen Here s my story about the lost shoe The passenger side door latch stopped working on Kevin s Reatta The door would lock but wouldn t unlock of course with me in the passenger seat Could use a metal rod and open the lock but nei ther the power unlock or the manual handle would unlock the door Won t go into all the details of removing the latch assembly on a 90 Reatta same on 88 91 Reattas and Rivieras but it in volves rivets as well as screws bolts When I finally got the latch assy out of the car and started cleaning it a screw fell out A screw that is only used in the door to hold a mounding at the top of the door by the door window My best guess at the sequence of events is 1 Prior owner decides to put a used 1980s model radio in the car because he doesn t want to buy a radio and takes it to Best Buy for the install 2 Best Buy installers break the passenger side window during in
24. sterling high temp coated headers good runner solid car set of For sale I have a Pontiac bellhousing for a 3 or 4 speed trans if interested Contact Smitty 877 626 2321 Free Pontiac honeycomb wheel 14in amp a 65 GTO battery tray needs painting no rust You pick up Bob mohalley aol com 770 395 5957 Wanted Refurbishing 71 Judge needs hood spoiler door panels etc if you have parts you want to sell pls call David Sims Quick lift ramps with jack and pads go with car Contact John Shaw 352 873 6775 Florida Reduced price 45 500 For Sale 1968 GTO Hardtop frame off restore 2008 1970 GTO Hardtop frame off restore 1999 2005 GTO Coupe 68 is a 400CI 4BBL Auto AC PS PB too much new to list 70 is a 400CU 4BBL 4 speed no power anything except the gas pedal 05 has custom grille inserts LS2 6 speed Premium Sound and Wheels 18 32 000 miles Call for details Dave Ellis 256 430 3900 The SEGTOA website is brought to you by Pam Immekus CHECK IT OUT www segtoa org For sale Steering wheel black fits 69 71 GTO Lemans Tempest looks great 75 00 John Link 404 578 8973 For sale 72 Cutlass 350 rocket 400 trans 675 street advenger holly carb edel b intake competition cams purple white gator seats sunroof lambo doors 4 6x9 in the back deck 2 speakers in back seat panels 1 speaker in each door all speakers are jbl with jl wir ing car
25. th tracks was more evident at higher speeds I needed to put gloves on for my second race and had I known how cold the air rushing at me was going to be I would have worn a pair of woolly underwear After an hour and a half of racing Jim brought in what appeared to be an entire interior to give one of the most in depth tech sessions on interiors I have ever had the pleasure of attending As I hope to be finishing up my car this year that includes a complete interior this session was timely and should save me some time and hopefully money From headliners to carpet Jim covered it all and his tips will come in handy as I go through the planning and reconstructing stages of my car I know I look forward to the rest of the tech sessions planned for this year and hope you do as well because no matter what shape your car is in these tech sessions will improve your understanding of your GTO January Tech Session Outline Seats Carpet Door Panels By Jim Norman FRONT SEATS REPLACEMENT PART RATING Feet excellent Back cover poor Seat lock not available Trim excellent Headrest amp lock fair excellent Upholstery fair Seat cushions poor Springs excellent pieces and whole frame BACK SEAT Upholstery fair Padding excellent Trunk divider excellent ACCESSORIES Seat belts fair Shoulder harness clips fair excellent Sun visors clips excellent excellent Page 12 ACCESSORIES Rear view mirror Coat hook Headliner Bows Clips Center light C
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