A blown head gasket on a 3800. - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 11-10-2007, 01:13 AM   #1
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Default A blown head gasket on a 3800.

No, I didnt believe it at first either, but the pics, although horrible, do seem to show it.

http://www.automotiveforums.com/vbul...d.php?t=764322


He says, it was overheated at some point, so I guess that would be what caused it. Still unusual though.
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Old 11-10-2007, 12:10 PM   #2
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First his Pics suck.... Camera Phone?

Now, its unusual to burn out a set of head gaskets on a 3800... So this motor was run pretty hot at one point or another... I have seen where people did not know they were low on coolant and ran the level below the heads... After a while if you don't crack anything you will cook a head gasket that way...

I hop he will have the heads magnafluxed to check for cracks.. and have them shaved down a hair if needed...

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Old 11-10-2007, 07:51 PM   #3
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Quote:
Originally Posted by jr's3800
First his Pics suck.... Camera Phone?

Now, its unusual to burn out a set of head gaskets on a 3800... So this motor was run pretty hot at one point or another... I have seen where people did not know they were low on coolant and ran the level below the heads... After a while if you don't crack anything you will cook a head gasket that way...

I hop he will have the heads magnafluxed to check for cracks.. and have them shaved down a hair if needed...
My mom has run a vin c for a few weeks sans coolant w/o knowing it (place she took it for a flush forgot to tighten the radiator drain plug - oops) with no damage. And recently, she drove her S2 for several months with the coolant below the UIM level (I think theJMFC said it took 1 1/2 gallons to fill back up). These engines are crazy tough.

That said, heat kills, and I've seen one or two blown head gaskets in 3800'*. It can happen, it'* just rare.
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Old 11-10-2007, 08:49 PM   #4
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I will agree... 3800'* are tough motors

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Old 09-19-2011, 10:05 PM   #5
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I blew one and it was clogged. Read my post I have a better picture of how mine looked like
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Old 09-19-2011, 10:13 PM   #6
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