Club 80-90 Forums

Hi

Thought I would share this fix to a long standing issue I have recently resolved.

After transplanting a Skoda 1.9 AEF into my 1.6 CS 2 yrs ago the shut off solenoid ... we'll just wouldn't... when ignition key turned off !

It would however... shut off with key ... but only with the ignition light feed terminal from the alternator disconnected.

But that " temp " (2 yrs ago) fix = Leaving me without an ign light and the voltage regulator without an ign live supply - resulting in big jumps from 0 to 14.5 v charging (not good)

Problem traced to = alternator back feeding through ignition light energising the solenoid with just a few volts enough to hold it open.

Soloution = inline diode wired into the feed to ign light circuit from alternator.
\
Sounds simple but took me ages to work out - hope this might help anyone transplanting engines with different alternators.

Hope this explains clear enough

Matt - brighton

Thanks for the post Matt,

Also had the same issue with my GTi (AGG) conversion on my '82 Aircooled (CU) Bus.

Although I didn't find this post until I had found the fault, always the way!!

Thanks for that - hope it helps anyone with the same issue.

Best


Matt-brighton