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316 no sparks
Posted: Mon Oct 20, 2014 8:49 pm
by nas80
M10 1.8 1983
Ok I'm having some problems with this m10.
I can't get it to fire
New plugs
New Leads
New cap
New rotor arm
Tried two coils
Can get spark from the coil if I pull the king lead and put it near a ground.
Do not see spark on the spark plug on the end of the lead.
What do you reckon is going on?
Re: 316 no sparks
Posted: Mon Oct 20, 2014 9:02 pm
by drjim
You need a new ignition module. I think it's over next to the left shock mount. Check the wires aren't wet etc then try a different module.
Reck should have a spare, I think I gave him one years ago. I may have one in the box of bits at my old workshop but a long shot.
Re: 316 no sparks
Posted: Mon Oct 20, 2014 9:04 pm
by nas80
Ah didn't check that. I might actually have a spare I can try.
Re: 316 no sparks
Posted: Mon Oct 20, 2014 9:07 pm
by Jeroen
Could very well be indeed, usually they break due to overheating or bad grounding (corrosion). Pulse sender inside the dizzy can be at fault as well.
Are the cap and rotor arm from the same brand? They may suffer from design mismatches as well.
Re: 316 no sparks
Posted: Mon Oct 20, 2014 9:50 pm
by nas80
Forgot to say I tried two brand new dizzy caps.
The only thing I haven't changed is that resister module thing. Didn't realise it needed a decent ground
Re: 316 no sparks
Posted: Tue Oct 21, 2014 12:41 am
by Reck
I've got two spare ignition modules I can take up this weekend.
Also - the battery light is constantly illuminated. This indicates a problem with the alternator, right?
Re: 316 no sparks
Posted: Tue Oct 21, 2014 10:44 am
by nas80
Reck, subsequent research leads me to believe that's the alternator internal voltage regulator - its knackered or needs fixing / replacing or we can try a spare alternator.
Re: 316 no sparks
Posted: Tue Oct 21, 2014 11:17 am
by Reck
Yeah, lets try a spare. Let's not clean and paint it until we know it's working this time lol.
Re: 316 no sparks
Posted: Tue Oct 21, 2014 11:59 am
by nas80
Reck wrote:Yeah, lets try a spare. Let's not clean and paint it until we know it's working this time lol.
ahaha aye..
Re: 316 no sparks
Posted: Tue Oct 21, 2014 1:27 pm
by Reck
FYI that alternator that is in there now was definitely working on the last M10 I had installed. It's a refurb unit so the brushes and regulator should still be good. I bet it's not grounded properly.
Also - if the ignition control unit was broken, there wouldn't be a spark at the king lead would there? I'm putting a fiver on an issue with either the dizzy, rotor, cap or timing...
Re: 316 no sparks
Posted: Sun Oct 26, 2014 10:06 pm
by Reck
New ignition unit and dizzy fixed it. See owners gallery.
