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??

aggiedave98 · 12-31-2006, 02:11 PM

I guess I should have posted this part... It's a '98 350 in my burb. I'm in the middle of changing my intake gasket because I've been losing coolant and can't seem to find an external leak, although I didn't see coolant in the oil. I bought the burb about a month ago and changed the oil.

I'm changing the intake gasket and that's how I saw this... I took the passenger side valve cover off. I'm about to take off the intake.

thanks for the quick help!! I've got my laptop in the garage right now... and will be online if you guys have more questions/comments...

what causes cracked heads?? could they be cracked without overheating??

12-31-2006, 02:11 PM	#4
aggiedave98 Senior Member Join Date: Aug 2003 Location: Sugar Land, TX Posts: 1,007	Re: HELP!! lot of gunk under valve covers... is this from coolant?? how to clean?? I guess I should have posted this part... It's a '98 350 in my burb. I'm in the middle of changing my intake gasket because I've been losing coolant and can't seem to find an external leak, although I didn't see coolant in the oil. I bought the burb about a month ago and changed the oil. I'm changing the intake gasket and that's how I saw this... I took the passenger side valve cover off. I'm about to take off the intake. thanks for the quick help!! I've got my laptop in the garage right now... and will be online if you guys have more questions/comments... what causes cracked heads?? could they be cracked without overheating??