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740 no spark to the plugs 700 1989

posted by  Hunderton on  Sat Feb 16 05:39 CST 2002
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Running a 740 SE Estate (in the United Kingdom) with 2 litre injection (B200E engine).
Just fitted new rotor, disributor cap, plugs and HT leads. Started all OK, sounded smooth and just right. Then took it for a test drive, after a few mins it just died on me, pushed it back home (good calf workout!). Had a good check + no spark is reaching the plugs. Have checked coil - primary and secondary resistance all ok. Power is getting from the coil to the dist cap. Even tried refitting old cap, rotor, plugs and leads, but still no spark to plugs. I have checked all the fuses, and that the rotor is turning OK, cambelt OK, all wires are connected as they should be.

Had the local mobile mechanic round and he said something about a power surge travelling back to the ignition controler? and possibly having to diconnect its earth then reconecting it again and also doing something else? Said he would get back to me tomorrow once he had found out more info. He mentioned somthing about a tech bulletin from Volvo about this?

Anyone got any more ideas on what to check, or if the mechanic is making this up?

Thanks from Tim in the UK






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