Head gasket

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(Head gasket re-torquing)
(Re-using head gaskets)
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===Re-using head gaskets===
 
===Re-using head gaskets===
Some head gaskets are re-usable, and some aren't. Copper head gaskets are re-usable if they have not been used with an o-ring, although they have to be re-annealed. Even if a head gasket is re-usable, many people prefer to use a new one. The labor involved in replacing a head gasket, and the potential for engine damage from a blown gasket are too great to risk.
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Some head gaskets are re-usable several times and others should never be re-used. Steel shim head gaskets are designed for one use only. Composite or graphite head gaskets are most often not re-usable because of rust damage to the steel core, disintegration of the surface material or damage or loss of the sealant material. MLS gaskets are most often not re-usable because the elastomeric coating is scubbed off of the combustion and coolant seals by abrasion from temperature induced expansion and contraction. Traditional copper head gaskets are re-usable, Titan and ICS Titan copper head gaskets from SCE are also re-usable. Even if a head gasket is re-usable, many people prefer to use a new one. The labor involved in replacing a head gasket, and the potential for engine damage from a blown gasket are too great to risk.
  
 
When re-using gaskets, they can be coated with high-temp aluminum exhaust paint, available from [http://www.vhtpaint.com/products VHT]. ''(confirm this product name and description)''.
 
When re-using gaskets, they can be coated with high-temp aluminum exhaust paint, available from [http://www.vhtpaint.com/products VHT]. ''(confirm this product name and description)''.

Revision as of 16:45, 5 June 2009

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