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914World.com _ 914World Garage _ Throttle body

Posted by: 57lincolnman May 4 2013, 11:29 AM

My throttle body on 75 1.8L will not return to idle when revved. It will return to lower RPM @ 1200 or so. Can these be rebuilt? I think there is play in the shaft which causes the valve inside to stick. I think this is a very common problem for 1.8's so finding a used one may not be best option. Would like to know how others have solved this. Thanks

Posted by: dlee6204 May 4 2013, 11:33 AM

I simply fixed mine by taking apart and cleaning it. I also tweaked the return spring for slightly more tension.

Posted by: Drums66 May 4 2013, 12:22 PM

....Maybe just spring tension?
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Posted by: Dave_Darling May 4 2013, 08:33 PM

They can have bushings installed. I don't know offhand of anyone who does that, but any decent machinist should be able to.

--DD