Can i reuse a a gm ls1 mls headgasket? no start
#1
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Can i reuse a a gm ls1 mls headgasket? no start
I went to put some 243 heads on my ls1. i bought gm bolts and mls head gaskets. We went to bolting the heads down and tightened them in sequence and in three passes. Well, long story short we snapped one bolt. Good news got that one bolt out of the block with zero effort. Well, i ended up buying arp head bolts. Now the big question, can i reuse my mls gm head gaskets? let me know asap so i can get this car on the road thanks.
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No.
Weather it has been run or not makes no differencr in these things. Once they are compressed the gaskets are done, they are single use. Get another gasket or you will damage your motor.
Weather it has been run or not makes no differencr in these things. Once they are compressed the gaskets are done, they are single use. Get another gasket or you will damage your motor.
#7
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Never started....run it, no problems!
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#9
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Simply compressing the gasket will not cause any problems. I'd run it without giving it a second thought! people do so on GM and Cometic MLS gaskets WITH run time on them all the time and you rarely hear of a negative outcome.
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#11
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I'm not saying you are wrong, just stating my opinion based on my experience. I'll re-use a good shape exhaust manifold gasket (GM MLS) as well, while many would absolutely never do so.
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Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
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#13
I'm ****! $50 for piece of mind?? I would use new gaskets even though others say they have with no issues.
Although....I would think as long as ALL you do is pull the bolts and NOT seperate the heads from the block, its a non issue.
Since I know first hand that if you pull them apart, the "O" rings do kind of pull apart.
How much is your time worth??
Although....I would think as long as ALL you do is pull the bolts and NOT seperate the heads from the block, its a non issue.
Since I know first hand that if you pull them apart, the "O" rings do kind of pull apart.
How much is your time worth??
#14
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I'm ****! $50 for piece of mind?? I would use new gaskets even though others say they have with no issues.
Although....I would think as long as ALL you do is pull the bolts and NOT seperate the heads from the block, its a non issue.
Since I know first hand that if you pull them apart, the "O" rings do kind of pull apart.
How much is your time worth??
Although....I would think as long as ALL you do is pull the bolts and NOT seperate the heads from the block, its a non issue.
Since I know first hand that if you pull them apart, the "O" rings do kind of pull apart.
How much is your time worth??
#15
Time is irrelevant to this equation. It is about materials. While I agree that in perfect circumstances we would all replace every gasket and seal we broke. Most of use are also budget conscious who drive street cars which will run great on a once pressed but never used gasket.
V.S. just swap them out now while its already apart.
If he wants to roll the dice....than roll the dice. He might be ok, he might not be..who knows.
I just know what I would do. I hate doing anything twice because of being cheap. It always cost me more later!
#16
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Yea, but we are talking about a head gasket here...If he re-uses it, and it fails there is more at stake....He has to take the top end apart in a tight engine compartment. Clean the surface again, chase the threads again, buy more coolant, more oil, and buy a set of head gaskets. Not to mention....what if he hydro locks it from a leak???
V.S. just swap them out now while its already apart.
V.S. just swap them out now while its already apart.
#18
I've run used headgaskets... I used paint thinner to clean off the black reckon coating that was left, then a few costs of copper spray and didn't have a problem.... Had run the motor for a few weeks before I popped the head off and reused the gasket