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Hot start valve cleaning

 
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ted von Kampen  



Joined: 14 Oct 2016
Posts: 183
Location: Scottsbluff, Nebraska
PostPosted: Wed Sep 07, 2022 3:49 am    Post subject: Hot start valve cleaning Reply with quote
I have a 1981 924 with 2L engine. I have had problems with hot starting. I have a couple of the pierburg valves. One is stuck, the other one rattles and does move when electrified.
Question 1: does it matter which wire yellow/red or brown/white goes to which terminal on the valve?
Question 2: I want to clean the valve. I have an ultrasonic cleaner on its way to me. Does anyone have experience in cleaning these valves? I suspect varnish inside. one valve does not rattle nor move with power. If you have experience I am curious what solvent was used and for how long? Most important, did it do the job? Those valves are not available as far as I know. Thanks for any information....ted
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