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Post by driveshaft on Jun 19, 2011 20:35:41 GMT -5
I've just got a 1990chev 1/2 ton and I here a clatter I think it's timing which way should I try moving it? Is it to far advanced or retarded?
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Post by step1958 on Aug 6, 2011 17:02:34 GMT -5
clatter ? your sure its not a valve out of adjustment ? hard to start ,pinging , to much advance or super cheap gas !!!!!!
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Post by step1958 on Aug 6, 2011 17:04:13 GMT -5
motegoman link for chat room ? thanks doug
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Post by 4x4dog on Jan 7, 2012 22:38:36 GMT -5
Does it sound like it is comeing from the bottom end or what? Does it get louder as u Rev it?
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Post by jims47 on Dec 17, 2013 20:04:38 GMT -5
IF it is timing, it will likely be pinging when under load if timing is too advanced, or lack of power but no noise if timing is too retarded. You might have a hydraulic valve lifter not pumping up allowing some chatter, or something else mechanical. How many miles are on the engine?
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