IanMc Posted November 14, 2017 Share Posted November 14, 2017 Re: 2.0S Cavalier Coupe GLS (1979) Could one of you lovely people please upload a photo or two of the ignition connections under the bonnet i.e. coil and dizzy so that I can try to make some sense of what a previous owner has left me to deal with. At the moment I appear to have some missing cable(s) and cables of the wrong colour in that area... Thanks in advance. Quote Link to comment Share on other sites More sharing options...
H-400 Posted November 14, 2017 Share Posted November 14, 2017 Hi Ian, has your Cav still got the original ignition? (classic one with contact-breaker) Or is it updated with a electronic one (aftermarket/ Opel Manta)? Had once a Manta-A in my garage with electronic ignition using both wire looms, had to cut to clean up that spaghetty. Pic would help! Quote Link to comment Share on other sites More sharing options...
IanMc Posted November 14, 2017 Author Share Posted November 14, 2017 19 minutes ago, H-400 said: Hi Ian, has your Cav still got the original ignition? (classic one with contact-breaker) Or is it updated with a electronic one (aftermarket/ Opel Manta)? Had once a Manta-A in my garage with electronic ignition using both wire looms, had to cut to clean up that spaghetty. Pic would help! Hi mate, Yes, mine is the standard Manta B set-up i.e. with contact breaker points. I can take a photo tomorrow if needed. Thanks for replying. Quote Link to comment Share on other sites More sharing options...
H-400 Posted November 14, 2017 Share Posted November 14, 2017 Been looking at some pics in another topic of your car. The ignition parts laying behind your left beam (in the engine compariment) are Bosch related. A photo would be nice, you know what a dizzy and a coil is so I think you'v got some basic experience with cars. Regards, Herman Quote Link to comment Share on other sites More sharing options...
MANTAMAN Posted November 15, 2017 Share Posted November 15, 2017 One thing about the ignition circuit, the wire running from the ignition switch to the coil is a special wire, termed a ballasted wire, or a wire with restistance, if this needs replacement some means of replicating this restistance will needed, if you convert to later Manta Hall effect ignition system this wire needs replacing with a conventional wire. I haven't got any pictures of the ignition circuit and can't remember exactly which wire goes where, so i won't put any speculation here, rather i will try and remember to find out for certain the ignition arrangments. Quote Link to comment Share on other sites More sharing options...
IanMc Posted November 15, 2017 Author Share Posted November 15, 2017 OK, so it seems that I have that rare model with the twin dizzy lol I found the 'second' dizzy resting on the front crossmember resting against the dipstick - go fathom... never seen that before. Yes, I do have quite a bit of experience with cars - but never seen that before! Anyway, here a a few photos that hopefully will help you to help me: Thanks in advance. Quote Link to comment Share on other sites More sharing options...
H-400 Posted November 15, 2017 Share Posted November 15, 2017 Strange, the other dizzy is "tie-wrapped" against the engine? And connected with the green wire. The connections: The green wire of the dizzy (female) must go to the male connection of the green wire of the car. That green wire has got a female connection and that must be on your coil. (they name it the "1" connection of the coil) That transparant/black wire must be connected on the other side of the coil (the "15" connection of the coil) Some info:The transparant wire is that wire Mantaman mentioned. As he wrote: very important if you change to electronical ignition! The black wire fitted with it is the 12V connection ONLY when you start the engine, than the ignition gets the full power for an easy start. And ofcourse the centre connection of the coil must go to the centre connection of the dizzy... Make sure the contact-breakers are adjusted (0.4mm basic). Do you want to start up the old lady?? Quote Link to comment Share on other sites More sharing options...
IanMc Posted November 15, 2017 Author Share Posted November 15, 2017 (edited) Hi Herman, That is great information - many thanks! I bought the car knowing it was probably a non-runner as the previous owner had been told it had 'a valve issue'... now you and I both know that could cover a lot of things i.e. valve burnt, seized, dropped into the cylinder etc etc - so the only way of knowing is to get stuck into it. It would be great to bring her back to life, but of course before I even get to that point I have to get the old girl sparking, hence my question. Thanks again - as always this forum is a bit help - just as I remembered it! Edited November 15, 2017 by IanMc Quote Link to comment Share on other sites More sharing options...
611 Posted November 15, 2017 Share Posted November 15, 2017 This is from an opel GT manual, but the same sort of setup. Might be of use to use. Around page 21 for the distributor bit. http://www.opelgt.com/photopost/data/3040/1J_-_Wiring_Diagrams.pdf Andy Quote Link to comment Share on other sites More sharing options...
IanMc Posted November 15, 2017 Author Share Posted November 15, 2017 18 minutes ago, 611 said: This is from an opel GT manual, but the same sort of setup. Might be of use to use. Around page 21 for the distributor bit. http://www.opelgt.com/photopost/data/3040/1J_-_Wiring_Diagrams.pdf Andy Thanks Andy, much appreciated. Quote Link to comment Share on other sites More sharing options...
plumster Posted November 16, 2017 Share Posted November 16, 2017 If it's a Cav it may have A C Delco parts, mine is back in the garage at last so I can take pics at the weekend if you like. Quote Link to comment Share on other sites More sharing options...
IanMc Posted November 16, 2017 Author Share Posted November 16, 2017 1 hour ago, plumster said: If it's a Cav it may have A C Delco parts, mine is back in the garage at last so I can take pics at the weekend if you like. Hi Sam, That would be great, many thanks for your help! Quote Link to comment Share on other sites More sharing options...
H-400 Posted November 16, 2017 Share Posted November 16, 2017 If there is a valve issue I would look under the rocker-cover and turn the engine manual to check what is happening. If the engine turns without mecanical problems you can always check the compression, a valve problem would be easy to find. And before actual trying to start the engine, be sure of the oil level/quality . About the dizzy: 100% sure it is a Bosch. Why the second dizzy? Can only think there was a problem with the condensator and someone fixed this situation ... not my way of working. Succes! Quote Link to comment Share on other sites More sharing options...
IanMc Posted November 16, 2017 Author Share Posted November 16, 2017 2 hours ago, H-400 said: If there is a valve issue I would look under the rocker-cover and turn the engine manual to check what is happening. My thinking entirely! - that is the reason my next job is to remove and paint the rocker cover and oil filler. Then while I am in there... Quote Link to comment Share on other sites More sharing options...
611 Posted November 16, 2017 Share Posted November 16, 2017 22 hours ago, IanMc said: Thanks Andy, much appreciated. No Problem. Probably best to strip it all off and start again. Looks like the alternator wiring is a bit of a bodge as well. I would give the engine a turn over by hand and see how she turns before trying a startup. Hope it goes well. Andy 1 Quote Link to comment Share on other sites More sharing options...
plumster Posted November 19, 2017 Share Posted November 19, 2017 Some pics of the wiring on my Cav, if you want pics of anything in particularlet me know, that additional dizzy top seems rather strange.... Quote Link to comment Share on other sites More sharing options...
IanMc Posted November 20, 2017 Author Share Posted November 20, 2017 That's great, thanks for your help Sam - much appreciated. Quote Link to comment Share on other sites More sharing options...
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