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Old 11-01-2007, 01:01 PM
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Can I Reuse Head Gaskets?

ok I hope you guys don't get pissed at me for this but I will go out on a limb and ask it anyway.

Can you reuse head gaskets? This is for a BBC.

I know the general answer is "NO", but, lets' say they were only 1-2 years old and have less than 500 miles on them. Is the answer still no or does it depend on the gasket type and other factors.

Reason is, I may have to remove my heads and check the gaskets for damage. If they are in good condition, can I just reinstall the head and re-torque it down, or am I asking for trouble?

I guess I'm just trying to save $100 to $200 on gaskets if I don't need them.
If the gaskets are not "blown" I'd like to reuse them if possible.

Lee

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Old 11-01-2007, 01:05 PM
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no definatly not.
once they get set their height is different.
youll have leaks
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Old 11-01-2007, 01:10 PM
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I wouldn't.
Head gaskets compress under torque, conforming to the block and head. You might get lucky if they're going to go on the same block and heads but still. Consider the time you have (or won't have) when the gaskets blow to replace them when you could have done it the first time. Just my .02.
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Old 11-01-2007, 06:22 PM
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steel shim gasket, you might get away w/ it. regular composit type gasket, no they compress 2 much
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Old 11-02-2007, 12:25 AM
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Reuse gaskets??

Two things you don't want to reuse gaskets and condoms,if they leak you got problems! and they both can cost you plenty!!
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Old 11-02-2007, 12:32 AM
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It doesn't matter if they have 500 miles or 500,000... you can't reuse them. They function by crushing. Once you install them, they're done. They squish and provide pressure in all the right places. Once they're crushed they can't be re-used. Even if you're building a new engine and you haven't run it, if you've torqued the heads down once, they're done.

And seriously... they're $40, and they're one of the most critical parts. Imagine how pissed you'd be if you assembled an engine with a used $40 part only to destroy the entire shortblock with coolant in the oil because you refused to shell out 2 twenties for a new head gasket.

There are exceptions... flat copper gaskets can often be reused if they haven't been used much. They don't get their primary sealing from crushing, they get it from the sealant you have to use. BUT... any embossed, composite, or multi-material gasket can only be torqued once; period.

Racers who use copper shim gaskets sometimes re-use head gaskets because they can, but they're professionals Don't try this at home
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Old 11-02-2007, 12:33 AM
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Quote:
Originally Posted by JeffB
Two things you don't want to reuse gaskets and condoms,if they leak you got problems! and they both can cost you plenty!!
that's fkn funny
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Old 11-02-2007, 08:54 AM
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I bet you could re-use a permatorque if it looked really clean nice and good and you put it back exactly how it came off. I don't think the permatorque gaskets compress as much.
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Old 11-02-2007, 10:06 AM
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Depends on the head gasket. Cometic MLS gaskets are reusable.

On 2 occasions I have reused felpro 1010 head gaskets. In both instances it was on a fresh never fired engine. I never had any issues N/A or on spray.

On an engine that has been run and heat cycled, I would not attempted it.
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Old 11-02-2007, 01:08 PM
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Many engine builders will use the same head gasket they use while plate-honing a block. Not just the type but the actual gasket itself in both cases. The theory is that it's another level of uniform distortion while honing.
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Old 11-02-2007, 08:01 PM
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So far, it look's as if the answer is yes and no... I think. I myself dislike pulling my engine intake and heads and would not, no way reuse my head gaskets!


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Old 02-09-2014, 06:01 PM
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The steel shimmed ones do not really compress like the fiber ones do, But to be on the safe side just replace the gaskets, so engine does not go boom, so if you have to spend $30-$60 again big whoop, right, better to be safe then sorry in the long run, I mean yes if the cylinders filled with coolant engine dies with out anything getting damaged, but you have a messy clean up though. And an engine flush to do after to make sure you have no more coolant in the cylinders or in ur pan.
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Old 02-09-2014, 06:07 PM
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6 year old thread
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Old 02-09-2014, 07:54 PM
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Quote:
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6 year old thread
let alone a 6 year old thread that the OP never returned too
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