ivantruckman Posted January 9, 2008 Share Posted January 9, 2008 my 86 gl wagon, carbed engine has got a very oily air filter now, could this be from a sticky pcv valve, all the vac hoses have oil in them too. the engine runs good , no reduction in power, kinda weird Link to comment Share on other sites More sharing options...
nipper Posted January 9, 2008 Share Posted January 9, 2008 Well replace ther pcv valve. Replace the air filter, and maybe do a compression check wet and dry. you may have some blow-by (not uncommon with age and miles). nipper Link to comment Share on other sites More sharing options...
GeneralDisorder Posted January 10, 2008 Share Posted January 10, 2008 I doubt he has blow-by. That's extreemely uncommon for these engines. It's probably bad PCV valve and PCV filter, along with accumultion of carbon and other deposits in the breather lines. It's best to replace the larger lines with 5/8" heater core hose, and blow out/replace all the smaller lines. Replace the pcv filter in the airbox and the pcv valve with OEM parts ONLY. GD Link to comment Share on other sites More sharing options...
ivantruckman Posted January 10, 2008 Author Share Posted January 10, 2008 i think gd may be right , the carb is clean just raw oil on the outside of the filter Link to comment Share on other sites More sharing options...
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