Beware Dodgy Coils ?????

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Vic Cohen
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Beware Dodgy Coils ?????

Post by Vic Cohen »

Had a new coil for the 2.4 s, abt 3 months ago, RAC towed me in this morning , garage had 2 more back faulty sitting there .......Reliable Indy, got 'em from Europarts...........anyone else ??????
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Post by Ferry Man »

I had some hot start problems en France.
After a long run, switch off, heat soak, eh voila, no start.
It seems possible it could be coil or CDI.
Once cool (only a few minutes) it works again.
Maybe it's a coil fault (cheaper than another CDI box!).
You've got me thinking now...
Paul

'74 Porsche 911 Carrera 2.7 (MFI) - Lime Green
'94 Porsche 911 Carrera 2 (993) - Mexico Blue
Vic Cohen
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Post by Vic Cohen »

Paul ,CDI when they go i dont think they come back , can be rebuilt .......this just died on me, no warning whatsoever on Junc 2, M1 exit 6 30 this morning ...........wud not start again , lots of engine turning over , full of juice , just filled ,RAC asked had i put diesel in !!!!! Real ggod guy came out spent a while then towed me in , felt complete pratt having told him new coil so it must be CDI!!!
Also passed by all the commuters i see every morning ............!!!!!
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Post by Ferry Man »

Vic Cohen wrote:felt complete pratt
That's classic Porsche motoring for you, always introducing you to new experiences :wink:
Paul

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Post by impmad2000 »

I have been known to fix CDi boxes if they do die...
Cheers
Tim
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Post by tanick »

I had an ignition problem at Le Mans. Haynes manual says the resistance across the 2 pins should be 0.4 ohms. I was only getting 0.1 ohm. Changed it twice for other people's spares who also read 0.1 ohm. Checked Will's car which worked fine - also 0.1 Ohm. So. if you're checking them with an ohmeter, bear in mind that the Haynes book seems to be wrong.

Uncannily Vic, I was there around that time. Didn;t spot you or I'd have stopped, believe it or not I had one of the spares with me!
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Post by Vic Cohen »

Typical never there when i need u !!!!! I guess was on the chevrons at the exit between 6 15 and abt 7 30 by the time he d hitched me up U WUD AVE NOTICED!
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Post by hot66 »

Brendan had this problem at CLM after stopping at teh supermarket. It was eventually worked out it was the points. New set of points & car started 1st time :)

We actually think the original points had closed up & needed readjusting, but Brendan replaceed them just to make sure
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Post by Viv_Surby »

Ferry Man wrote:I had some hot start problems en France.
After a long run, switch off, heat soak, eh voila, no start.
It seems possible it could be coil or CDI.
Once cool (only a few minutes) it works again.
Maybe it's a coil fault (cheaper than another CDI box!).
You've got me thinking now...
Me too :evil:
.....AKA the Welsh driving ace - Carlos Monteverdi!

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tanick
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Post by tanick »

Brendan had this problem at CLM after stopping at teh supermarket. It was eventually worked out it was the points. New set of points & car started 1st time

We actually think the original points had closed up & needed readjusting, but Brendan replaceed them just to make sure
We think mine was caused by oil and crud that had accumulated in the dizzie being vapourised by the heat of the blast down to LM, probably the hottest and longest the car's got for 10 odd years. There was a thin film of grease over the points which didn't stop them sparking when we tested them but caused enough resistance when closed to interrupt the signal to the CDI. I'm going to carry a spare coil and points, rotor and a couple of leads from now on. Anyone got a spare CDI?
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Post by Vic Cohen »

We may all have different problems, but the boys took the coil off a dead car, put a spare on it fired and has nt stopped running since ..........other than looking at the points 2000 miles ago and rotor arm about 7000, not touched today at all.............i rest my cas M'Lud
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Post by steve wright »

Paul, sounds like fuel vaporisation perhaps rather than electrics?
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Post by Nick Moss »

I think Paul's problem may be with the cold start solenoid but I am having in at the week end to check it out and I will report our findings.

Viv, is your motor MFI or CIS?

Vic, I have bought new Bosch coils recently, proudly stamped "made in Brazil"
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Vic Cohen
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Post by Vic Cohen »

NICK DOES THAT MEAN THEY RE WAXED ??????
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Post by Nick Moss »

:shock: Been to Brazil then have you?
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