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??

jmelenko · 01-01-2007, 05:07 AM

If you have a shop vac and a screwdriver you can clean alot of it out. Use the screwdriver to break up the sludge and at the same time have the shopvac sucking it up . I do this at work all the time and works great. Then i use castrol 15-40 oil (its a detergent oil, helps break down the sludge) for the first 500 miles the drop it and run your normal oil and regular oil changes.

01-01-2007, 05:07 AM	#12
jmelenko Knuckle basher Join Date: Feb 2005 Location: British Columbia, Canada Posts: 148	Re: HELP!! lot of gunk under valve covers... is this from coolant?? how to clean?? If you have a shop vac and a screwdriver you can clean alot of it out. Use the screwdriver to break up the sludge and at the same time have the shopvac sucking it up . I do this at work all the time and works great. Then i use castrol 15-40 oil (its a detergent oil, helps break down the sludge) for the first 500 miles the drop it and run your normal oil and regular oil changes. __________________ Only the good die young; I'll live forever. 2002 chevy venture 1952 chevy 5 window pickup 1983 v65 magna