Instruction Sheet for REOPUS H Ignition
Contents
1. The ballast Block reduces the coil current when the ignition is in the run mode to prevent the coil from overheating in the start mode the Ballast block increases the coil voltage to provide an increased spark to improve cold and hot starting If there is an open circuit or a high resistance connection in the coil circuit the Coil terminal may be up to 12Volts this indicates an open circuit and no coil current and therefore no spark The following procedure tests the Ballast resistor and the coil circuit provided it is wired as Original 1 Turn OFF ignition 2 Remove the coil HT lead from the centre of the distributor and connect to a spark plug on the engine to create a HT circuit This allows any coil High voltage to be dissipated across the spark plug gap will you do these tests Remove the negative connector from the coil Connect an amp meter 10 amp DC range between the coil negative terminal and the engine With the ignition switched ON you should have between 3 and 4 amps showing on the meter Provided 5 above is OK this means the coil circuit is OK If no current check Coil and Ballast block Resistance and connections visit our website for Ballast block details 8 Now connect your Meter lead to the coil negative terminal and your meter Negative lead to the coil negative amplifier wire you removed from the coil negative terminal 9 Now with the ignition ON you should have about 3to 4 amps displayed on your meter If no current t2. The circuit board is not a modular unit and therefore repairable and can be upgraded to the latest specs if required We look after our customers and our technical support is free via email The original REOPUS 3 and 4 amplifiers can be modified to operate with the REOPUS H pickup contact the factory for details REOPUS Warranty The manufacturer warrants for a period of 5 years from the date of purchase that the REOPUS H circuit board and Pickup is free from defects in material and workmanship The manufacturer s obligations under this warranty are limited to the REOPUS H circuit board and Pickup only when it is used as a replacement for the Lucas Opus Type AB3 ignition trigger amplifier together with the original car manufacturer s ballast resistor REOPUS H pickup sensor and an appropriate coil All warranty claims will require examination at our manufacturing facility transportation charges pre paid and if after examination the unit is found to be defective we will either repair or replace it at our discretion The warranty shall not apply to any units which have been damaged by poor installation methods repaired or altered except by the manufacturer or which have been subjected to abuse misuse REOPUS Engineering Ltd pride ourselves with our high level of technical support If you have any problems with your REOPUS please don t hesitate to contact us for assistance Email dave reopusignition com Web site www reopus
3. misfiring under load Open the car bonnet after dark with the engine running you may observe sparks from the ignition leads if so replace the leads REOPUS gives more spark energy compared with the old OPUS amplifier recommend NGK BP6ES spark plugs for carburettor V12 engines 5 Additional tips and checks Make sure original wire connectors and terminals are clean and protected from corrosion HT leads and spark plugs should also be in good condition Distributor cap must be dry and clean inside and outside Whether your engine has carburettors or fuel injection the fuel delivery system and the ignition system are interdependent Many faults can be either or scenarios so ensure the fuelling system is also functioning at the correct pressure when the engine is running 7 A very common is the centripetal advance weights in the base of the distributor being stuck with dried up grease even rust This will drastically affect the mechanical advance of the ignition timing and they need to be cleaned freed and lubricated with a high temperature lubricant The vacuum advance or retard module is another weak point The internal rubber diaphragm hardens with age and heat then splits or cracks This will affect the idle speed engine performance temperature and fuel economy All REOPUS circuit boards have been designed and manufactured using high specification industrial quality components and manufactured to instrument standards
4. wire connecting the capacitor on the base plate and the OPUS board The REOPUS H board makes this component redundant Fit the wires through the aluminium Heat sink cable slot of the REOPUS H circuit board making sure that the components are facing towards you as in the photo Position the wires and rubber grommet in the top of the case and later seal with a silicone sealant to prevent water ingress now position the circuit board into the amplifier case Using 4 of the original screws fasten the circuit board into the case Carefully strip the ends of the wires and tin them Carefully solder the wires into the soldier pads as detailed on page 3 to the solder pads 1 2 3 andA C T on the component side as in photo of the REOPUS circuit board Note the wires must be soldered on the component shown and the other side if possible especially Pad C Early Type Black Wires with colored bands REOPUS H B pickup Pad 1 Black wire Red trace Band Pad 2 Black Wire No band Pad 3 Black wire Yellow Band Pad A Batt Red and Black Band T 321 Pad C Coil Black and White Band r Pad T Tachometer Blue and White Bands ee S er Later Type Coloured wires 5 or 6 REOPUS H C type pickup Pad 1 Red wire Pad 2 Black wire Pad 3 Yellow wire 321 Pad A Batt Red Black wire n Pad C Coil Black White wire m_b wt Pad T Tachometer Blue White wire a Note The Blue Whi
5. REOPUS H Ignition Installation Instructions 6 2014 The REOPUS H is a Hall Effect amplifier circuit board and Pickup designed to replace the Lucas OPUS AB3 amplifier and Lucas OPUS pickup A competent owner technician can install the amplifier and pickup himself The REOPUS H has been developed following of our experience with the REOPUS versions 3 and 4 which used the original Lucas OPUS pickup The REOPUS H Ignition provides ignition accuracy and stability to a level that was unobtainable with the original Lucas OPUS system The REOPUS H amplifier is installed into the original Lucas OPUS AB3 alloy case and uses the existing wiring connectors ballast block and coil type REOPUS H pickup replaces the original Lucas OPUS pickup and is installed in the distributor as original and connects to the original amplifier 3 pin connector and uses the original timing rotor The REOPUS H A Type pickup is connected to the original pickup wiring inside the distributor The REOPUS H Pickup B Type Black pickup wires and C Type Red Yellow Black Pickup wires pickups are supplied complete with grommet to fit original V12 Jaguar distributor and 3 pin connector The REOPUS H ignition system is compatible with the rest of the ignition components therefore you can maintain the ignition system as per the manufacturer s instruction manual Except the pickup test We have included 2 diagnostic LED s on the circuit board to indicate the p
6. allation Remove the coil HT lead from the center of the distributor cap insert a spark plug into the end of the HT lead place the spark plug onto the engine to create the HT circuit turn the ignition ON if you connect and disconnect the pickup at the 3 pin connector you should have a spark across the plug gap If all appears OK reconnect the Coil HT wire to your distributor and now it s time for your Road Test If no spark proceed to page 4 The REOPUS H Pickup and amplifier will not alter the existing ignition timing however we recommend the ignition timing be checked using an ignition stroboscope as detailed in the service manual for ultimate performance and economy Fault finding for the REOPUS customer Your car is now about 40 yrs old and the wiring has possibly had little maintenance over the years or has possibly been altered by a previous owner refer to the maintenance manual wiring diagram lf you do have problems we suggest you carry out the following tests with the REOPUS H circuit board mounted in the Amplifier case with the connectors to the coil and the ballast resistor in place and the Amplifier case connected to the engine negative with the circuit board and LED s visible On the REOPUS H circuit board are 2 LED s for diagnostic purposes The Red and Green LED s are referred to in the following test procedures Caution When the coil circuit is disconnected a high voltage from the coil primary and secondary discharging
7. causes a high voltage for a few milliseconds it can cause some discomfort we strongly advise switching OFF the ignition before connecting or removing your amp meter during the following tests Before proceeding with any ignition circuit test we suggest that you remove the coil HT lead from the center of the distributor cap insert a spark plug into the end of the HT lead place the spark plug onto the engine to create the HT circuit it is also a good visual test Note 2 The ignition should not be switched ON for long periods during the following tests as the coil and the ballast block will get hot If the RED LED on the REOPUS circuit board is not illuminated 1 With the ignition switch ON the Battery voltage should be about 12 7 volts subject to battery charge and condition 2 You should have about 12V on pad Aon the amplifier circuit board and the Red LED should be ON provided the Ballast Block and wiring connections are OK If the RED LED is not ON you may possibly have a short circuit in the amplifier or pickup wiring or a High resistance connection on the Ballast block 3 Check your solder connections on the circuit board A Check for broken wires We suggest if crimp lugs have been replaced at any stage they should be soldered crimp connections are not reliable Note the original lugs were spot welded Check the ballast block resistance information is on www reopusignition com Check connectors and terminals are clean W
8. hen above tests are OK Now switch ON the ignition if all is correct you should have 5volts on the coil terminal when ignition coil circuit is OK Note The ballast resistor block and starter relay increases the coil voltage during starting and lowers the coil volts in the run mode so as to prevent the coil from overheating MOC W If the GREEN LED does not flash When the engine is cranked over and the RED LED is ON The Green Led should flash when a Ferrite rod on the distributor rotor passes the center of the pickup The Green LED will also flash briefly when the 3 pin pickup amplifier plug is connected or disconnected With ignition switch ON and the Pickup connected to the REOPUS H circuit board with your voltmeter connected across Pads 1 and 2 there should be 5 volts if you do not have any voltage disconnect pickup at the connector if you now have 5 volts there is possibly a short in the pickup circuit 1 Check your wiring has not shorted to the amplifier case 2 Check pickup wiring for damage 3 Check the pickup for damage 4 Clean pickup connector If the there is no spark and the RED LED is on and the GREEN LED flashes when the engine is cranked over If you have about 5V on the coil terminal this would normally indicate the coil is drawing current and the ballast block is OK 5V is the correct coil voltage after the ballast Block when in the run mode In the start mode the coil voltage is increased by about 20
9. here is possibly a fault in the amplifier or output transistor The transistor is rated at 20amps and 600volts so this is unlikely unless it has been shorted Contact REOPUS for assistance we are happy to help o eS ee Misfiring Check Pickup clearance to rotor 0 020 0 005 Are the Spark plugs clean If the engine mixture is too rich the plugs will foul and engine will be hard to start especially when Hot Black spark plugs rich mixture Faulty Ignition leads faulty Coil or flooding carburettors Misfiring under light acceleration when engine is up to operating temperature this can be due to no oil in the carburettor dashpots or a lean mixture Check ignition timing and mechanical advance is OK Check Battery voltage with the engine at approx 1500RPM the voltage at the Battery terminals should increase to at least 13 8volts and preferably about 14 3volts Low battery volts can also be due to a faulty Alternator voltage regulator or alternator Low volts low coil HT output Check carburettors are correctly balanced lf your car starts to accelerate then dies the problem is possibly a Lean mixture fuel starvation A Low fuel pressure Rebuild fuel pumps B Check pump efficiency C Blocked fuel pipes D Check carburettor float levels If the misfiring happens after a short while remove the petrol filler cap does it suck air If it does the fuel tank breather is possibly blocked Faulty ignition leads will cause
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11. or and the positive and negative wires from the coil and remove the amplifier from the vehicle 1 5 Remove the 4 base plate screws from the bottom of the amplifier unit The photos show an early OPUS Later versions have different colored boards and wiring See 10 below Carefully lever off the base plate taking care not to damage the paper gasket which should be reused when fastening the plate after installation Remove the 6 Posidrive screws holding down the Lucas OPUS circuit board and carefully remove the board from the amplifier case You will need to push the wires and rubber grommet from the top of the case to provide enough wire length to do this Depending on the model of the amplifier the board will have a flat 5 or 6 wire cable attached to it The 6th wire is a Blue White Tachometer also known as a Rev counter wire If not present 5 wires the Tachometer will be driven off the coil negative terminal via a 6 8KQ resistor There is no connection to Pad T on the REOPUS H board with the 5 wire systems Carefully cut the wires as close to the circuit board as possible to ensure they will be long enough to solder to the pads on the REOPUS H board Some early boards are covered in a creamy white rubberised material so scrape this off to reveal where the wires attach to the board Keep the colour coded sleeves or bands on the respective wires See photos amp illustration in step 8 below Cut the
12. ower supply and pickup operation Please read the instructions completely and thoroughly before you start If you are not comfortable fitting it yourself we strongly recommend you take your Lucas OPUS amplifier case together with your REOPUS H amplifier and pickup and the instruction sheets to a competent Auto electrician The REOPUS H amplifier must only be used with a REOPUS H pickup The REOPUS H amplifier must not be connected to an original Lucas OPUS pickup The REOPUS H pickup must not be connected to an OPUS or a REOPUS version 3 or 4 Amplifier unless the amplifier has been converted to a REOPUS 3H or REOPUS 4H The REOPUS H Kit includes e 1x REOPUS H amplifier circuit board e 1x REOPUS H pickup Must be ordered with amplifier First install the REOPUS H pickup Note illustration is for Jaguar V12 REOPUS H Type A B C pickup instructions are supplied with your pickup Remove Distributor Cap Remove Distributor Arm Remove Distributor Timing disc Remove 2 screws holding the pickup Remove the Lucas OPUS pickup from the distributor Now install your REOPUS H pickup back into your distributor Make sure the pickup wiring is clear of the Timing disc Refit the timing disc and set the pickup gap to between 015 and 025in Refit the Distributor rotor arm refit the Distributor cap Next install the REOPUS H circuit board into your OPUS amplifier casing Disconnect the pickup connector the ballast resistor connect
13. te Tachometer wire is not present in the 5 wire units If your car has been changed to a later 5 wire system we suggest you leave it this way as the ballast block may also have been changed To restore it to its original format can create rev counter problems Visit our website Ballast block section for more details 9 Now tighten the 4 Posidrive screws holding the circuit board into the alloy case 10 Next reconnect the pickup module and the Ballast resistor to the amplifier DO NOT RECONNECT THE POSITIVE AND NEGATIVE COIL WIRES AT THIS STAGE 11 Turn the amplifier over so that you can see the REOPUS H amplifier board and connect the amplifier case to the engine so as to create the amplifier case negative connection 12 Turn the ignition switch to the run position do not attempt to start the engine the Red LED on the circuit board should be ON If not go to Page 4 13 Now turn over the engine on the starter motor The Red LED will be ON and the Green LED will flash 6 times per engine revolution indicating the pickup circuit is OK Turn OFF the ignition switch 14 If all is OK refit the amplifier base plate using the original screws and paper gasket 15 Refit the amplifier back in the original position 16 Reconnect the coil wires positive white Green and negative white Black wires and ensure the pickup and the ballast resistor are connected to the amplifier A quick test to check for spark for your REOPUS H ignition inst
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