Blown headgasket would very likely cause overheating and possibly water in oil pan.
Overheating "not".
Thread Starter
Racer
Joined: Mar 2007
Posts: 299
Likes: 0
From: Bahrain
Overheating "not".
Thought I would share this wih you. My mechanic friend called round last evening and we got chatting about our cars. I mentioned I was messing around with my C4 and was reluctant to drive it yet as I thought it had a leaking head gasket. My reasoning being that there are sir bubbles circulating in the cooling system. He explained that air bubbles were caused by the air being pushed around by the water pump. Previous experience with very expensive blown gaskts on a Merc made me sceptical however.
To prove his point we took off for a drive only to get caught behind a traffic accident. We were stuck there in 110 degreee heat for 30 mins.
and I was getting really concerned.
Geuss what? No overheating!
I was all ready to have the heads off and gaskets replaced.
For your info my mechanic friend served 10 years with BMW so does have experience.
Any thoughts out there?
To prove his point we took off for a drive only to get caught behind a traffic accident. We were stuck there in 110 degreee heat for 30 mins.
and I was getting really concerned.
Geuss what? No overheating!
I was all ready to have the heads off and gaskets replaced.
For your info my mechanic friend served 10 years with BMW so does have experience.
Any thoughts out there?
Thread Starter
Racer
Joined: Mar 2007
Posts: 299
Likes: 0
From: Bahrain
I am not asking a question. This was for information so that other's may avoid having to be concerned about bubbles in their system.
Sure, if there is overheating there is a problem but I was under the impression that bubbles were caused by leaking gaskets even without
overheating.
We are not all ace mechanics.
Sure, if there is overheating there is a problem but I was under the impression that bubbles were caused by leaking gaskets even without
overheating.
We are not all ace mechanics.
Le Mans Master
Joined: Apr 2005
Posts: 6,413
Likes: 9
From: The Old Dominion
How could a water pump introduce air into the system? If there were air trapped, it might bubble it out, but once it was out, that should be the end of it.
Are you seeing bubbles chug out into the surge tank or something? Or just that there's some bubbles floating on the top of the coolant in it?
Are you seeing bubbles chug out into the surge tank or something? Or just that there's some bubbles floating on the top of the coolant in it?
Thread Starter
Racer
Joined: Mar 2007
Posts: 299
Likes: 0
From: Bahrain
How could a water pump introduce air into the system? If there were air trapped, it might bubble it out, but once it was out, that should be the end of it.
Are you seeing bubbles chug out into the surge tank or something? Or just that there's some bubbles floating on the top of the coolant in it?
Are you seeing bubbles chug out into the surge tank or something? Or just that there's some bubbles floating on the top of the coolant in it?
Mechanics explanation was that there is air in the system (at the top such as in hoses etc) which is being circulated with the water. The bubbles are very small which made me think it was possibly gas getting past the gasket into the water system.
I was surprised, and relieved by it all. I took the car for a 2 hour drive fast and then through heavy traffic. No overheating and still the bubbles.
I just thought I'd pass it on because everyone I've mentioned this to, except my mechanic, says the cause is a leaking head gasket but it is not.
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Melting Slicks
Joined: Jan 2008
Posts: 2,065
Likes: 1
From: Jasper Texas
It still could be, just a slight leak in the early stages. My trans am did this for 6-7 months before it finally popped at 135mph. What a smoke show!
Mine wasn't the normal headgasket failure though, the area it busted caused coolant to go all over the ground and all over the engine bay, didn't get any in the combustion chamber and none in the oil. Been sitting in the yard for about a year now, its my parts donor for my vette now.
Mine wasn't the normal headgasket failure though, the area it busted caused coolant to go all over the ground and all over the engine bay, didn't get any in the combustion chamber and none in the oil. Been sitting in the yard for about a year now, its my parts donor for my vette now.
Racer
Joined: Sep 2007
Posts: 393
Likes: 0
From: Bartonville Illinois
I had a chevelle that had a bad head gasket. The gasket was blown from the compression chamber to a head bolt that went into the water jacket. It ran hot for months and never got anti freeze in the oil, and didn't apperar to be burning antifreeze.
Exhaust gases were entering the coolant system causing it to run hot.
It never boiled over but ran very near the edge all the that time. Pulled the head replaced gasket, put permatex on the bolts and all was good.
Exhaust gases were entering the coolant system causing it to run hot.
It never boiled over but ran very near the edge all the that time. Pulled the head replaced gasket, put permatex on the bolts and all was good.
Racer
Joined: Dec 2007
Posts: 345
Likes: 0
From: Flint Michigan, #2 in unemployment, #3 in Violent crimes
