The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - HELP!! lot of gunk under valve covers... is this from coolant?? how to clean??

cableguy0 · 12-31-2006, 09:09 PM

that looks a lot like long term sludge buildup due to lots of very very short trips or a lack of oil changes. your pcv probably needs changed as well. i wouldnt reccomend breaking all that stuff loose thats up there because if you dont get all the loose stuff out its going to end up clogging up the oil pump screen. when you get the intake off look at the lifter valley and see if it looks the same or worse. if it looks the same its likely from a lack of oil changes.

12-31-2006, 09:09 PM	#8
cableguy0 Senior Member Join Date: Apr 2000 Location: Delta,Pa Posts: 14,950	Re: HELP!! lot of gunk under valve covers... is this from coolant?? how to clean?? that looks a lot like long term sludge buildup due to lots of very very short trips or a lack of oil changes. your pcv probably needs changed as well. i wouldnt reccomend breaking all that stuff loose thats up there because if you dont get all the loose stuff out its going to end up clogging up the oil pump screen. when you get the intake off look at the lifter valley and see if it looks the same or worse. if it looks the same its likely from a lack of oil changes. __________________ Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member.