Hi all, just wondering if when replacing a head gasket on a 2h if it recommended to spray anything on the gasket or just put it on as is.
Rick
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fitting head gasket
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you mean hylomar?plowy wrote:best to get a cheap can of carby clean and clean the block n head free from dust n oil , also use a clean rag
i use holymar , thought u dumbduncce would have been a big user of it
gasket poo should only ever be used for where there is no gasket, or where a manufacturer specifies a gasket poo. most gaskets should go on dry and if the surfaces are properly perpared, this will give the best seal and the easiest disassembly. using any kind of spray/goo/sealant on a head gasket especially is asking for blocked cooling and oil passages and burnt chunks in combustion chambers.
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X2.. If a dry gasket wont seal then there is a problem.dumbdunce wrote:you mean hylomar?plowy wrote:best to get a cheap can of carby clean and clean the block n head free from dust n oil , also use a clean rag
i use holymar , thought u dumbduncce would have been a big user of it
gasket poo should only ever be used for where there is no gasket, or where a manufacturer specifies a gasket poo. most gaskets should go on dry and if the surfaces are properly perpared, this will give the best seal and the easiest disassembly. using any kind of spray/goo/sealant on a head gasket especially is asking for blocked cooling and oil passages and burnt chunks in combustion chambers.
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I use a thin smear of grease on plain metal head gaskets (A mechanic showed me this it seals any small imperfections)
The superseal ones just go on with nothing.
The superseal ones just go on with nothing.
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Yeah most (mono toqureand so on) come with the stuff in them when torqued down it seals. With the grease what grease is used and i think the block temp would go past it's melting temp i would think then it would just turn to a liquid and maybe even boil causing more dramas then it solves by not having the block/head surfaces right. like to know people views on this.longlux wrote:I use a thin smear of grease on plain metal head gaskets (A mechanic showed me this it seals any small imperfections)
The superseal ones just go on with nothing.
plenty of parts on the bench
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Just normal grease I never had a problem with it I have heard of the silver paint as well but never used it.
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this is like saying "I grow daffodils because they scare the bunyips away" - I know it works because there are no bunyips around here.longlux wrote:Just normal grease I never had a problem with it I have heard of the silver paint as well but never used it.
If a head gasket seals with grease on it, it will seal without - at head type temperatures, grease is as runny as oil.
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I wonder what it leaves behind after it boils offdumbdunce wrote:this is like saying "I grow daffodils because they scare the bunyips away" - I know it works because there are no bunyips around here.longlux wrote:Just normal grease I never had a problem with it I have heard of the silver paint as well but never used it.
If a head gasket seals with grease on it, it will seal without - at head type temperatures, grease is as runny as oil.
I had a mate his car did a couple head gaskets it was a p76 leyland both head gaskets put on by mechanics I used the grease never had another problem.
Bunyips don't exist
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