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Re: AIC valve cleaning
Posted by richl [Email] (more from richl) on Wed, 21 May 2003 06:35:17
In Reply to: AIC valve cleaning, Stefano, Mon, 19 May 2003 06:39:15
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a few years back I had my aic valve replaced by the dealer (although it was funny that it was ok when the car had gone in for its service) and I asked for the old one to be given back to me ( which it was - and it was an 85 valve on an 88 9000, even stranger) as I wanted to see how it worked.
I prised it open around the crimped edges (my memory is a little vague here but I think its the end with the electrical connections) but on the basis its really just a motor with a valve on the end of it, the thing came apart with little irreparable damage to the casing.
WARNING however!!!.... the brushes slide off the commutator - you're left with the elecrical connection bit with brushes inside and the motorshaft and rotor with commutator inside the main body of the housing. The big question is how do you get the brushes held open enough to allow the commutator to slide into the brush housing, and then release the brushes so they make contact again?? The permanent magnets in the casing are quite strong and the motor spindle has to locate in the bearing in the brush assembly too..... the whole thing is a barrel of monkeys to reassemble.
I would point out that what I found was a very dirty commutator and I suspect that had I cleaned everything up it would probably have carried on working, re-assembly being the biggest obstacle. Good luck !
posted by 172.188.2...
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