Blown Head Gasket Question

William741

Founding Member
Aug 18, 2000
324
0
16
Bellefontaine, Ohio
My car is using a little coolant, getting bubbles out of the radiator only when I blip the throttle, and only smokes a little when it's warm. I did a compression test and all were the within 5lbs except #4 and it was about 7-9lbs lower than the rest. And there is no coolant in the oil yet (thankfully) So, would you say that is the Gasket leaking? And, since its stock injectors, would it have ran lean enough, and blown just 1 cylinder? Do you think the head will still be flat, or will it have warped it a little? Thanks a lot, Will
 
those are some pretty decent numbers for a compression test, if the worst deviation you had was less than 10psi...

do you happen to have any slippery nasty stains on the block below the heads? you might have a slow leak...

if you have a leak where its pushing pressure into the coolant, then you'll be able to smell it in the antifreeze...you can actually smell the fuel and possibly oil in the coolant. If you can smell that, then you most likely do have a small head gasket flaw. you can also ck your plugs for some disgusting deposits.
 
I wish it were leaking externally, lol. I do have bubbles out the exhaust, but it's not in the oil yet. I guess I'll try to get a compression tester that i can put air pressure into the cylinder with. Stupid car, always working on it, lol. Thanks, Will