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| oldjocktom |
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Hi
I am having issues with my el 6 cyl fairmount on gas, and would appreciate some advise I have the timing set at about 20 degrees before tdc to make it run half decent If I set the timing at anything less it backfires on gas, if I set it on the timing mark it runs real bad in petrol I have checked the timing mark on the pulley is right by making a special tool to stop the piston just before tdc, marking the pulley, then the crank back 1 turn and stopping the piston just after tdc There is no sign of slack in the distributor drive or timing chain, the cam timing is right, I have changed recently leads cap rotor coil oxy dissy Any suggestions please |
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| TROYMAN |
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are you putting the ecu in diagnostic mode before adjusting the timing???
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| oldjocktom |
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YES, does changing from petrol to gas change the timing signal in the ecu?
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| evxr6 |
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Is it possible the harmonic balancer has slipped?
Edit: read first post about special tool and whatnot
_________________ Current ride: MY03 Liberty RX Wagon |
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| Pakrat |
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Probably not a timing issue but a mixture problem.
Have you had the gas mixtures checked. What's the converter look like? |
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| TROYMAN |
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TROYMAN wrote: are you putting the ecu in diagnostic mode before adjusting the timing??? oldjocktom wrote: YES, does changing from petrol to gas change the timing signal in the ecu? no. being a el , after bridging diagnostic pins are you waiting the 2 mins for it to go into timing mode before setting timing?? |
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| oldjocktom |
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No
The information I have said to, turn ignition off bridge connector restart motor idle speed will increase to indicate it is in test mode, no mention of waiting 2 minutes, if I wait 2 minutes do I get any indication it is in test mode Am I doing it wrong? |
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| TROYMAN |
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Thats because most think setting timing on el is same as ea-ed. But its not..
Your doing it right but once idle increases wait approx 2 mins and you will hear the rpm drop and the engine will sound retarded as the base timing on el is 0 deg or tdc.. As your running lpg I would run it at 5deg btdc.. this will be approx 25deg btdc out of diag mode.. I have a vid I put on you tube showing it going into timing mode but im on my mobile and dont have the link.. Ill post the link later if you like.. |
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| oldjocktom |
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Thank you for the information, it is 100% correct, turns out I did not have an issue after all
The information I was using was from an ef el manual, go figure I just had the gas system serviced by a so called expert and he did not know Once again thanks for the help |
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