S&S® Standard & Easy Start Gear Drive Camshafts
Contents
1. Position the outer drive gear on the rear camshaft with the timing mark facing outward Rotate the drive gear and camshafts until the drive gear and crankshaft gear timing marks are aligned See Picture 11 next page Q Ensure that the gear is properly aligned with the timing mark on the crank gear and the key on the rear camshaft Start the outer drive gear by hand and use the screw and washer 50 0132 and 50 7056 provided in the installation kit to drive the outer gear onto the rear camshaft R Apply a drop of red threadlock 262 272 or 271 to the threads of the 24 x 1 75 Grade 8 cam drive gear screw Apply a drop of clean 20W 50 engine oil under the bolt flange Using the thick washer provided install the cam drive gear bolt and tighten to 34 ft lbs torque NOTE The axial thrust of the rear cam is controlled by the inner gear collar and the outer gear collar Check the outer gear to make sure that it is fully seated against the rear cam shoulder Failure to fully seat the outer gear will cause needle bearing and cam support plate damage S To check backlash in the outer drive gear set rotate the 62 teeth cam drive gear back and forth while keeping the pinion gear locked in one place with the engine The minimal required backlash for the gear set should be between 0005 and 001 and no more than 002 for cold gears Both gear sets should roll freely with no radial or axial binding When checking backlash the gear mesh shows l2. Procedure For Tappets With HL T Kit Installed A Remove clips to release lifters If necessary place transmission in high gear and turn rear wheel to rotate engine until both lifters of front cylinder are at lowest point on camshaft The engine is now at TDC of compression stroke for front piston If equipped with Easy Start cams you must use extra care when adjusting pushrods Because the decompression lobe is near TDC it is possible to adjust the pushrod while the tappet is on the lobe if it is not exactly at TDC This will cause incorrect exhaust pushrod adjustment To verify correct position you can rotate the engine in the forward direction and feel for the exhaust tappet to slightly lift about 030 and set back down on base circle This is the proper point to adjust the pushrods B Extend pushrod adjustment collapsing lifter until piston assembly is in contact with HLT spacer and pushrod is tight If tappets contain oil as when pushrods are readjusted after engine has been run or if all oil was not removed during HL T installation extend pushrod adjustment until valve is open about five additional turns of adjusting screw Allow 5 minutes for hydraulic unit to bleed down If pushrod can be turned with fingers after bleeding down lifter is not completely collapsed and this step must be repeated NOTE Perform this operation on one cylinder at a time Do not turn engine until pushrod adjustment is complete A CAUTION
3. exhaust pushrod Interchanging the intake and exhaust pushrods upon reassembly will cause the intake valve to stay open on the compression stroke and the engine will not run d Rotate the engine so the other cylinder is on TDC compression and repeat the above procedure Remove cam cover and gasket Secure lifters with a magnetic lifter tool or a tool made from a large binder clip spring See Pictures 2 and 3 below Rotate rear wheel to align timing marks on the primary cam chain 4 Remove the primary chain tensioner by removing the two oOo N OA WM retaining bolts and install sprocket locking tool Remove the crank sprocket bolt and flat washer Remove rear cam sprocket bolt and flat washer Remove sprocket locking tool Gently pry off crank sprocket and rear cam sprocket Grind points on each end Picture 3 Picture 4 Cam Support Plate and Cam Removal 1 Gradually loosen and remove the four oil pump bolts washers according to the sequence shown in Picture 4 next page 2 Gradually loosen and remove the six support plate bolts washers according to the sequence shown in Picture 4 next page 3 Remove spacer from rear cam this spacer is thicker than the front spacer 4 Remove cam plate and cams from engine 5 Remove retaining ring and spacer from front cam This spacer is 0 100 thick 6 Remove the secondary cam chain tensioner 7 Remove the cams and cam chain 8 Check pinion sha
4. through lifter cover Inner tappet hole is for intake pushrod and outer tappet hole is for exhaust pushrod If using S amp S standard adjustable pushrods hold a new Figure 2 gasket under lifter cover and install push rod pushrod cover lifter cover and gasket as an assembly on crankcase Tighten lifter cover screws to 95 in lbs torque Stock pushrods or S amp S Quickee pushrods can be installed without removing tappet cover NOTE If using unmodified original tappets perform steps 3 A thru 3 D to adjust pushrods see below If S amp S HL T kit has been installed in tappets proceed to steps 4 A thru 4 F next page 3 Pushrod Adjustment Procedure ForStock Tappets and S amp S Tappets without HL T Kit A Turn adjuster screw to lengthen exhaust pushrod until pushrod has no vertical movement but still rotates with light finger pressure Extend pushrod by rotating adjuster screw an additional 24 flats and secure adjuster screw with locknut B Repeat step 3A for intake pushrod C Lifters should bleed down in 5 10 minutes allowing pushrods to be rotated with light finger pressure Extend pushrod covers and install cover clips A CAUTION Rotating engine before lifters have bled down may damage pushrods and other components not covered under warranty D Rotate engine until it is at TDC of compression stroke for rear piston following procedure outlined above Repeat steps 3A C for rear pushrods 4 Pushrod Adjustment
5. 06 4849 STA POAN AIET ETE E SAA eee sn ee 106 5740 For Tri glide models
6. Instruction 106 6067 01 10 14 Copyright 2008 2014 by S amp S Cycle Inc All rights reserved Printed in the U S A SES Cycle Tue 14025 Cty Hwy G PO Box 215 Viola Wisconsin 54664 Phone 608 627 1497 Fax 608 627 1488 Technical Service Phone 608 627 TECH 8324 Technical Service Email sstech sscycle com Website www sscycle com Installation Instructions S amp S Standard amp Easy Start Gear Drive Camshafts for 2007 up Harley Davidson Big Twin and 2006 Dyna Models DISCLAIMER S amp S parts are designed for high performance closed course racing applications and are intended for the very experienced rider only The installation of S amp S parts may void or adversely effect your factory warranty In addition such installation and use may violate certain federal state and local laws rules and ordinances as well as other laws when used on motor vehicles used on public highways especially in states where pollution laws may apply Always check federal state and local laws before modifying your motorcycle It is the sole and exclusive responsibility of the user to determine the suitability of the product for his or her use and the user shall assume all legal personal injury risk and liability and all other obligations duties and risks associated therewith The words Harley Harley Davidson H D Sportster Evolution and all H D part numbers and model designations are used in reference only S
7. Start installation when you are fresh Be sure all federal state and local laws are obeyed with the installation For optimum performance and safety and to minimize potential damage to carb or other components use all mounting hardware that is provided and follow all installation instructions Motorcycle exhaust fumes are toxic and poisonous and must not be breathed Run motorcycle in a well ventilated area where fumes can dissipate IMPORTANT NOTICE Statements in this instruction sheet preceded by the following words are of special significance AX warnine Means there is the possibility of injury to yourself or others CAUTION Means there is the possibility of damage to the part or motorcycle NOTE Other information of particular importance has been placed in italic type S amp S recommends you take special notice of these items WARRANTY All S amp S parts are guaranteed to the original purchaser to be free of manufacturing defects in materials and workmanship for a period of twelve 12 months from the date of purchase Merchandise that fails to conform to these conditions will be repaired or replaced at S amp S s option if the parts are returned to us by the purchaser within the 12 month warranty period or within 10 days thereafter In the event warranty service is required the original purchaser must call or write S amp S immediately with the problem Some problems can be rectified by a telephone call and need no further
8. Turning engine while valve is held off the seat could result in valve to valve or valve to piston contact and serious valve train damage C Loosen pushrod adjustment until pushrod can be rotated with the fingers with slight drag Pushrod now has zero lash NOTES Shortening pushrod adjuster an additional six flats or one full turn from zero lash often results in quieter pushrod operation This provides additional travel for the hydraulic piston assembly which can improve the ability of the hydraulic unit to maintain zero lash under normal operating conditions S amp S does not offer an HL T kit for 1999 02 stock tappets If HLT kit is required a 2003 later stock tappet or S amp S tappet is recommended D Tighten lock nut and recheck pushrod adjustment to insure that it is still correct E Follow the same procedure for all four pushrods F Replace any remaining parts removed to facilitate gear drive cams installation Check engine oil level Start engine and check for leaks NOTES After a few hundred miles it is a good idea to recheck pushrod adjustment in anew engine as valve train may tighten up due to gasket compression and valve seat wear Upon initial start up after modification HLzT equipped lifters may be somewhat noisy for 10 20 miles If lifters are still noisy after 20 miles it is recommended that pushrods be adjusted 1 2 turn looser Special notes on operation of motorcycle with Easy Start camshafts e Stoc
9. al with stock cylinder heads compression release cam The operation is simple at cranking speeds A CAUTION A a spring loaded decompression lever holds the exhaust valve open slightly Once the engine fires and exceeds 750 RPM centrifugal force sends the lever to a retracted position allowing the engine to run normally Cams with more than 585 lift require that the stock valve springs be replaced with high lift spring kits Some high lift spring kits require clearance checks and many require cylinder head modifications to prevent contact between top color and valve seal and to achieve correct installed height See the instructions with your spring kit for exact specifications while watching or feeling the pushrods move through their travel When BOTH pushrods are at the lowest point of their travel and the piston for that cylinder is at TDC the engine is at TDCC Rotate the pushrods to ensure there is no load on them If the pushrods will not rotate freely by hand either the engine is not on TDCC or the lifters need to bleed down It may be necessary to let the lifters bleed down for a few minutes before the pushrods will rotate freely Cam Intended Displacement Intended Compression Ratio b If S amp S adjustable pushrods will be used for re assembly the stock pushrods may be cut to remove them at this time When cutting pushrods S amp S recommends a bolt cutter be used as it is the cleanest method Be sure to only cut the pushrod
10. alve You may need to remove the spark plugs and crank the engine to get the oil pressure to the lifters S amp S GEAR DRIVE CAM REPLACEMENT PARTS FOR 2007 UP BIG TWIN AND 2006 UP HARLEY DAVIDSON DYNA 1 15 17 18 PINION Sey Repmecnete mere roman nr ar arr RIT DR Tere ar ee ror 33 4160 PINION Gear Undersized c cccssessseesesesesesesesesessseesseeses 33 4160X PINION Gear OVEFSIZEC ccsccssessessesesesesesesesesesessseesseeees 33 4160Z Outer Cam Gear sessesesessesesseseseeseseeseseesesessesessesesseseseeseseesesee 33 4269 Cover Outer Oil Hole seseeseessessessesseseessesseeseeneesessseseessessesss 33 4264 Cover TOD ON Hole ssesssessesssessesssesseesecsseesecsseessessesssesseessee 33 4265 Screw HHC 36 18 X 3 4 eseseesessessesseseesessesreseonesseseesesseseeseess 50 0100 Screw BHTS 14 20 X 34 sessesessesseseesesseseeseoseoressoseesessessesees 50 0288 S Washer Flat 3 8 x 1 8 X 225 susssssesssesessessessesesssosesseseesess 50 7056 Thrust Washer 110 wu eesssesssesssessssssssssssssssesseesssesseesens 50 8279 Retaining Ring Bowed 78 ssssessssssesssessesseesserseess 50 8286 S Key Woodruff 125 X 5 ess sssessssesssseesssessssessseeosseessserssss 50 8223 S Key 188 x 150 x 57 5 Pack ss ssessessssessensesesscseesecseseeeeseses 106 1348 Gasket Cam Cover 10 Pack esssesseseessessessessessessesseeseeseesee 31 2032 S Front Inner Gear es sessssesessesesseseseesessesessesessssesesseseos
11. amp S Cycle is not associated with Harley Davidson Inc SAFE INSTALLATION AND OPERATION RULES Before installing your new S amp S part it is your responsibility to read and follow the installation and maintenance procedures in these instructions and follow the basic rules below for your personal safety e Gasoline is extremely flammable and explosive under certain conditions and toxic when breathed Do not smoke Perform installation in a well ventilated area away from open flames or sparks If motorcycle has been running wait until engine and exhaust pipes have cooled down to avoid getting burned before performing any installation steps Before performing any installation steps disconnect battery to eliminate potential sparks and inadvertent engagement of starter while working on electrical components Read instructions thoroughly and carefully so all procedures are completely understood before performing any installation steps Contact S amp S with any questions you may have if any steps are unclear or any abnormalities occur during installation or operation of motorcycle with a S amp S part on it Consult an appropriate service manual for your motorcycle for correct disassembly and reassembly procedures for any parts that need to be removed to facilitate installation Use good judgment when performing installation and operating motorcycle Good judgment begins with a clear head Don t let alcohol drugs or fatigue impair your judgment
12. clearance between the top of the cam lobe and the pinion bearing boss when the camshafts are rotated in the inner needle bearing Also check clearances between the cam lobe and the tappet guide bosses To avoid contamination of the engine with chips we recommend that all holes in the gear case be taped off with duct tape and that the gear case be thoroughly cleaned with parts cleaner or solvent after clearancing is performed D Apply assembly lube to the bearing bore of the support plate and the outer races of the cam and the decompression lever if equipped Slide the S amp S front cam into place E Install the 110 washer on the other side of the support plate over the front cam F Install a new loaded retaining ring onto the end of the front cam to secure it in place NOTE Before reinstalling cam support plate replace oil pump o ring supplied in kit even if the original appears to be in good condition The stock o ring may have become brittle and provide a poor seal if reused G Apply a thin layer of assembly lube to the rear cam journal lobe surfaces inner bearing surfaces and decompression lever if equipped H Slide the rear cam into place aligning the two timing marks on the back of the cam gears See Picture 9a bottom next page Align the camshafts with the needle bearings in the case and carefully side the support plate over the crankcase dowels See Picture 10 page 6 NOTE The support plate assembly sho
13. course of action A part that is suspect of being defective must not be replaced by a Dealer without prior authorization from S amp S If it is deemed necessary for S amp S to make an evaluation to determine whether the part was defective a return authorization number must be obtained from S amp S The parts must be packaged properly so as to not cause further damage and be returned prepaid to S amp S with a copy of the original invoice of purchase and a detailed letter outlining the nature of the problem how the part was used and the circumstances at the time of failure If after an evaluation has been made by S amp S and the part was found to be defective repair replacement or refund will be granted ADDITIONAL WARRANTY PROVISIONS 1 S amp S shall have no obligation in the event an S amp S part is modified by any other person or organization 2 S amp S shall have no obligation if an S amp S part becomes defective in whole or in part as a result of improper installation improper maintenance improper use abnormal operation or any other misuse or mistreatment of the S amp S part 3 S amp S shall not be liable for any consequential or incidental damages resulting from the failure of an S amp S part the breach of any warranties the failure to deliver delay in delivery delivery in non conforming condition or for any other breach of contract or duty between S amp S and a customer 4 S amp S parts are designed exclusively for use in Ha
14. eseeeesesees 33 4273 Rear INNner Gear esesessesesseseseeseseesessesesessesessesesseseseeseseeseseesese 33 4274 Rear Inner Gear Undersized se sessesseseeseesseesceseessessesse 33 4277 Rear Inner Gear Oversized essessessessessessessresceseessessesse 33 4278 Screw SHCS 76 24 X 134 eeseeesssesresseseesessesreseosesseseesesseseeseess 50 0132 Needle Bearing 2 Pack ss ssssssesssessesseesseeseesscossessesssesseessee 31 4499 D E EEE A A E EA AA T EA 50 8039 Cam Installation Kit e sseseeseesseeseeseesseseesseseessessesseeseeseeses 106 6068 Includes 3 4 5 6 8 9 12 16 19 Outer Cam Drive Gear Kit esesessesessesessesessesesseseseeseseesesee 33 4268 Includes 1 2 7 11 15 20 Cam Gear Kit esssesessesesseseseeseseeseseesesessesessesesseseseeseseeseseesess 33 4285 Includes 1 2 7 11 13 14 15 21 Outer Gear Hardware PaCkK esessesessesssesseseessessesseeseese 33 4271P Includes 7 11 15 22 Camshaft Kits with Inner Gears N S AOE eae ne en 33 5246 IOG a a 33 5247 SOO IRIN enana 33 5248 EPE EH T EEO AA ANT E E E E 33 5249 SER A PEA A E T ee eee e 33 5250 Easy Start Cams with Inner Gears N S BD PE AE E ATA ATT E EAE 106 5736 E E T A E E AT E EE E EN 330 0056 VT d EIE E E A E A O A A E ER 106 5220 O teva aucareae tte ioesesatatsvezetgustv svi cectias dele cesesiancet aaa geencace 106 5810 EO PAAA AEEA AIA O AEA E 106 5224 O oag E E eap eects 106 5228 CF PERAE E EE N A seats ate ee 1
15. ess than 0005 of backlash then a smaller crankshaft gear size PN33 4160X Picture 9a Picture 10 should be used Gear sets with less than 0005 of backlash may whine when run and can cause tooth wear excessive heat generation with gear failure resulting in engine damage Gear backlash greater than 002 can cause excessive gear noise or clicking caused by the reversing of the forces applied by the lifter springs onto the cams use the oversized crankshaft gear PN 33 4160Z for this situation NOTE Cam drive gears are slightly larger than the stock drive sprockets and need to be checked for interference with the cam cover before proceeding T Press a small amount of kneadable clay or putty on the cam cover mounting boss shown See Figure 1 below Carefully hold the cover and cover gasket in the position against the crankcase Install mounting bolts 4 near the corners of the cover finger tight Push or tap the cam cover towards the engine U Carefully remove the cam cover Determine the cover to gear clearance by measuring the impression left in the clay by the gear at its thinnest point Clearance should be 030 or more If clearance is less than 030 or if the cover contacts the gear remove only enough material from the cam cover to obtain the correct clearance Repeat Steps T and U if necessary A CAUTION A Be careful not to grind too deeply and break through to the outside of the cam cover Damage to the cam c
16. ft runout Place an indicator on the end of pinion shaft at camsupport plate bushing surface and rotate engine reading must be 003 or less total indicated runout TIR If reading is greater than 003 TIR the crankshaft must be repaired or replaced to correctexcess runout before installing gear drive cams A CAUTION A If pinion shaft has more than 003 total indicated runout TIR the crankshaft must be repaired or replaced to correct excess runout before installing gear drive cams Failure to correct excess runout may lead to engine damage not covered under S amp S warranty 2 Installing the Cam Gear Drive A Install new needle bearings provided with the S amp S Camshaft installation kit 106 6068 or with bearings from another source Cam bearings must be Torrington B 168 full complement bearing or equivalent A CAUTION A Using existing needle bearings may cause engine or cam damage due to increased tolerances from wear and higher loading of cams Always replace cam bearings with the ones provided in this kit or another source B Install the new hydraulic block off plates where the front and rear chain tensioners were located tighten fasteners to 100 120 in Ibs See Picture 5 amp 6 below C When using 551G 570G 583G 585G 625G or 640G camshafts clearance between the pinion bearing boss and the rear cam lobe must be checked See Pictures 7 amp 8 top of next page Remove just enough material to provide 030 of
17. he lifter body the lifter is not pumped up and it will not lift the exhaust valve You may need to remove the spark plugs and crank the engine to get oil pressure to the lifters e There is no service required with these cams If you ever have the cams out for any reason inspect the mechanism for wear and verify that the lever operates smoothly 1 Disassembly 1 Remove pushrods a Remove pushrod cover clips with a small screwdriver and compress pushrod covers to expose pushrods Lift rear tire of motorcycle with a suitable jack Rotate the engine until one of the cylinders is on top dead center compression stroke TDCC TDCC can be found by rolling the rear tire forward Picture 2 Cutting without relieving valve spring force on ait pushrods may result in injury c If stock one piece pushrods are to be re used remove the gas tank and rocker box covers Remove the rocker arm support by first removing the two smaller bolts which hold the breather cover in place Next break loose the four bolts holding the rocker arm support plate in place with an alternating pattern Remove the four rocker arm support plate bolts and then the rocker arm support assembly The pushrods may now be removed by sliding them up into the head slightly and then pulling the bottom of the pushrod towards you Mark the original pushrod location as it is removed to ensure it is replaced in its original position The intake pushrod is shorter than the
18. k EFI engines require a minimum of 80 PSI cranking compression checked with the throttle open for the ECU to fire the spark plugs The easy start cams were designed to work with the compression ratio and displacement combinations that the cam was intended for Due to a near infinite number of engine combinations manufacturing tolerances or if the cam is used outside our recommended compression ratios occasionally an engine may not build the required compression to start the bike For these cases we offer cams that do not release as much compression Please call our technical department at 1 608 627 8324 e The engine idle should be set at 1000 1100 RPM e If your bike is carbureted the starting routine may be slightly different allow yourself time to experiment to find the best method e When the engine is turned off you may hear a slight click This is the decompression lever resetting and is normal Occasionally this may be quite loud but is still normal and does no harm e If you allow engine speed to go below 900 RPM you may hear clicking as the decompression lever starts engaging Your engine may stall if this happens If this happens frequently the idle speed should be adjusted higher If the lifters have been disassembled or bled down for any purpose the starter may have difficulty with the initial start Although the decompression lobe lifts the lifter body the lifter is not pumped up and it will not lift the exhaust v
19. over caused by removing too much material is not covered under warranty z Figure 1 Picture 11 V Use a new cam cover gasket and install the cam cover Tighten the cover bolts 90 120 in lbs torque in sequence shown See Figure 2 below W Remove clips to release lifters If using stock pushrods or S amp S Quickee pushrods tappet covers may be left in place If using S amp S standard adjustable pushrods tappet covers must be removed Place transmission in high gear and turn rear wheel to rotate engine until both lifters for front cylinder are at lowest point in their travel The front piston is now at TDC of compression stroke If equipped with S amp S Easy Start cams you must use extra care when adjusting pushrods Because the decompression lobe is near TDC you must make sure that the tappet is not on the lobe This will cause incorrect exhaust pushrod adjustment To verify correct position you can rotate the engine in the forward direction and feel for the exhaust tappet to slightly lift about 030 and set back down on base circle This is the proper point to adjust the pushrods Loosen locknuts on adjustable pushrods and turn adjusters to make all rods as short as possible When installing pushrods note that longer S amp S pushrods are for exhaust valves and shorter ones are for intake Pass one long and one short pushrod through assembled pushrod covers Place pushrod and cover assemblies
20. rley Davidson and other American v twin motorcycles S amp S shall have no warranty or liability obligation if an S amp S part is used in any other application Timing z Cam Name Lobe Duration Lift Centerline TDC Lift oo me netsh lest PA Open Close a ae aston e oer ehn f s f f as E Ca e e e see ee ee ee 7 er oeh f o joar fo oar a Jee ee eh fo ss ee ass go Le s 8 2 os on ss f oe o ar as Le e es s se o o o Ce a e a e oe E E E m Te os ea mm x Exh 507 22 2527 104 0 118 eh som o or o ar owe d ons Chart 1 INTRODUCTION Piston to valve clearance will need to be confirmed when using a cam with over 0 585 of lift Clearance should be at least 0 060 intake and 080 exhaust Valve to valve clearance will need to be confirmed when using a cam over 0 585 lift Clearance should be a minimum of 0 060 The S amp S cam gear drive offers many advantages over the original cam drive system e Reduced maintenance There are no chain guides or shoes to wear or replace and no debris from wearing guides or shoe in you engine e Consistent cam timing Cam gears are keyed with a light press fit e Eliminating the chains and tensioners eliminates excessive side COME AEE NOTES loading of the cam support plate bearing surface S amp S Cam Gear Drive is not compatible with camshafts designed for the stock style chain cam drive S amp S Cam Gear Drive must be used with S amp S gear drive s
21. s that are not loaded and rotate freely by hand A WRNIG A A Cutting a pushrods with a saw may result in metal chips the engine and causing extensive damage which will not be covered under EL a A s CAUTION A T aa ae _ ene _ s m a yaaa Important Notes Regarding Easy Start Camshafts e Stock EFI engines require a minimum of 80 PSI cranking compression checked with the throttle open for the ECU to fire the spark plugs The easy start cams were designed to work with the compression ratio and displacement combinations that the cam was intended for Due to a near infinite number of engine combinations manufacturing tolerances or if the cam is used outside our recommended compression ratios occasionally an engine may not build the required compression to start the bike For these cases we offer cams that do not release as much compression Please call our technical department at 1 608 627 8324 e Cranking compression numbers are no longer a valid health check of the engine We recommend performing a leak down test e S amp S recommends that you install new lifters when installing new cams e If any service work is performed and the lifters are not replaced the lifters must be installed in the original position and orientation e If the lifters have been disassembled or bled down for any purpose the starter may have difficulty with the initial start Although the decompression lobe lifts t
22. se the inner gears to bind or become too loose Check the rear cam for endplay by moving the camshaft in and out of the cam support plate while rotating the cam in several positions 360 There should be no binding in any position when rotated If binding does occur replace the rear inner cam gear with a undersized inner gear PN 33 4277 Too much backlash between gears can cause excessive wear and valve train noise use the oversized inner gear PN 33 4278 to decrease backlash Over and undersized inner gears are not supplied with this kit NOTE Crankshaft and Outer cam drive gears have a light press fit on their respective shafts Start gears squarely on their shafts and use their mounting bolts to pull them all the way into position N Place the crankshaft gear on the crankshaft with the timing mark outward Apply a drop of red threadlock 262 271 or 272 to threads of 76 18 x 34 Grade 8 crankshaft gear bolt provided in kit PN 33 5240 or obtain one from another source Apply a drop of clean 20W 50 engine oil under the bolt flange Using the washer removed in disassembly install the crankshaft gear bolt and tighten to 25 ft lbs torque Picture 9 Picture 8 O If necessary place the transmission in high gear and turn the rear wheel to rotate the engine until the timing mark on the crankshaft pinion gear is able to be aligned with the outer cam gear timing mark P Place the 188 x 150 x 57 key into the rear cam shaft keyway
23. tyle camshafts 2006 Up gear driven camshafts kits 510G 551G 570G 583G and 585G l l l l l are compatible with stock 2006 Up valve springs Due to the change e Higher cam lifts can be used without decreasing cam base circle Gear in ift from the cams 570G and 585G require adjustable pushrods S amp S e Critical sprocket alignment is unnecessary e Maintained accurate valve timing when using high performance valve springs with higher spring forces driven cams rotate in opposite direction from the chain driven cams adjustable pushrod kit 93 5095 is recommended for engines with stock Lobes on the front and cea E NOR ener point towards each other length cylinders Longer pushrods are available for engines with longer allowing increased lobe height than stock cylinders See the S amp S Catalog for pushrods NOTES S amp S camshaft installation Kit 106 6068 is strongly recommended when 2004 up stock valve springs will handle camshafts with lift up to 0 585 installing S amp S cam gear drive This kit includes hardware gaskets and Ifa camshaft with higher lift is installed high performance valve springs bearings required for cam installation this kit includes oil pump o rings capable of handling a greater lift must be used OVERVIEW OF EASY START CAMSHAFTS IF EQUIPPED A cam with over 0 585 of lift will cause interference between the valve S amp S has developed Easy Start cams to assist starting with a spring top collar and the valve se
24. uld slide into place without resistance If resistance is encountered determine the cause and correct the problem before proceeding Do not force the support plate into position The camshafts must be installed into the cam support plate before installation Failure to due so could result in damage to the cam support plate and bearing surface J Recheck the cam timing by visually inspecting the timing marks on the front of the camshafts See Picture 9 bottom next page Picture 6 Picture 7 A CAUTION A Support plate screws that pass through alignment dowels can be easily stripped See Picture 4 page 4 when applying maximum 120 in Ibs torque as recommended by Harley Davidson K Loosely install the support plate screws with a drop of threadlock 242 or 243 blue Alternately tighten the screws to 95 in lbs torque following the sequence shown See Picture 4 above Install the oil pump screws into locations in Picture 4 above with a drop of threadlock 242 or 243 blue Screw them into the oil pump until they bottom out and then back them off turn Rotate the crankshaft allowing the pump to find its center and alternately tighten the screws in order to 45 in lbs Torque the screws to 95 in lbs and then rotate the crankshaft again checking for any binding in the oil pump gears M Check the inner camshaft gears for proper backlash Due to the manufacturing tolerances of the cam support plate camshaft alignment may cau
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