flak monkey
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| posted on 17/4/09 at 08:45 PM |
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Tried a different dizy (std points) today, also had to change coil as dizzy didnt seem to drive the other coil.
Interestingly problem is now worse, rpm skips about a bit at idle too (maybe up to +500rpm). Refitted H&H dizzy and its the same. Not yet changed
coils back though.
The only thing I didnt do was reconnect the suppressor capacitor to the coil, so thats top of the list tomorrow/sunday.
So I dont think there is anything wrong with my dizzy or original coil. So time to start looking elsewhere again.
Kind of working on both trying to get the parts to change to MS spark and fixing the issue I have now. I just want to understand what the problem
is!
David
Sera
http://www.motosera.com
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brianthemagical
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| posted on 17/4/09 at 09:28 PM |
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I've had a word with some peeps, and the consensus seems to be interfearence between the coil and the MS/Tacho.
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flak monkey
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| posted on 18/4/09 at 08:41 AM |
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quote:
Originally posted by brianthemagical
I've had a word with some peeps, and the consensus seems to be interfearence between the coil and the MS/Tacho.
Thanks for that. Having seen the results of changing the coils and dizzys this seems the most likely reason. Not sure how to go about solving it, but
there we are!
Sera
http://www.motosera.com
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brianthemagical
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| posted on 18/4/09 at 09:41 AM |
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You mention reconnecting the supressor, did you have any kind of surpressor with the electronic dizzy? What kind of wiring are you using? Does it pass
by any thing that might be high current, maybe the HT leads. I know it sounds patronising, but just incase like.
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flak monkey
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| posted on 18/4/09 at 04:32 PM |
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It did have a supressor yes, i just hadn't reconnected it the last time I tried it.
Just had the car out for a spin and the RPM signal looks worse than ever on the dash, however its now rock steady in the MS so the car drives OK at
least.
All thats changed is I have changed the coil to a bog std one from a capri and tweaked the circuit again in the MS unit. Everything else is exactly as
it was when I had the problem.
I am tempted now to leave it well alone until after stoneleigh!
David
[Edited on 19/4/09 by flak monkey]
Sera
http://www.motosera.com
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ss1turbo
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| posted on 19/4/09 at 07:59 AM |
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Try a resistor in the MS trigger line (from the coil -ve) - i've heard it can help with "over-sensitive" triggering.
Long live RWD...
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