noob2soob22 Posted February 7, 2012 Share Posted February 7, 2012 83 gl a/t. I've been experiencing substantial blowback from the passenger side vent hose of the air intake. I noticed a loud noise when I remove the driver side vent hose from the air breather, at idle. Changed pcv.valve and noise was eliminated,but still blowback! what should I look into next? also ea81 oil pump, is it a machine seal between the plate and the pump or should I have a gasket between the pump and the plate? I changed the gasket between the engine block and plate but still leaks roughly a quart a week. I will post pics in the a.m Quote Link to comment Share on other sites More sharing options...
spazomatic Posted February 7, 2012 Share Posted February 7, 2012 do a compression test. rings may be shot Quote Link to comment Share on other sites More sharing options...
noob2soob22 Posted February 7, 2012 Author Share Posted February 7, 2012 i did and these are the readings. 165lb #1cyl, 150lb #2cyl, 155lb#3 cyl, 135lb #4 cyl. i guess that is a big difference, but is that problem capable of completely plugging my air filter within a week? ive gone through two air filters in three months, both completely oiled. i swapped the pcv valve threw in a new filter same problem. so you think it may be the rings? taking the oil that passes the rings and forces it into the valve cover on compression stroke? am i on the right track Quote Link to comment Share on other sites More sharing options...
GeneralDisorder Posted February 7, 2012 Share Posted February 7, 2012 Clean out your pcv hoses and fittings and replace the pcv filter in the airbox. GD Quote Link to comment Share on other sites More sharing options...
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