head gasket

[bob dunn]

planning to fit a new head gasket saturday ,some say no sealer ,some say sealer at the back ,one man has lent me a small bottle of castor oil that his father allways used.?????  not sure ,how do you do it (75, 1300, spit)

[sparky_spit]

Payen gasket, ultra clean faces, and a light smear of blue Hylomar just around the oil feed hole for the rockers that goes through the head/block interface, on both sides of the gasket.

[Nick Jones]

sparky_spit wrote:

Payen gasket, ultra clean faces, and a light smear of blue Hylomar just around the oil feed hole for the rockers that goes through the head/block interface, on both sides of the gasket.

My techniques also - though I sometimes put the hylomar around the tappet chest area as well.

Nick

[GT6 M]

Not wanting to dismiss the above,

Ive done that, and it still leaked oil out the front alot,

so last time it was off,thought I,d try some thing else,

..black silicon mastic.. went on the front, and at the oil hole at back,

no leaked yet   { any one stop  gasket silicone will do, ]



the gaskets witht the shiney gloss on them ,  is supposed to be a glue, that  melts when

engine gets hot, so sticking the gasket down, , so the manufacturer told me,

but it never seems to get hot enough to melt it,

and if it does, its only in places, and no  all over, , and where it sticks,

Its hard to get off,

I think the grease and oil info, came from the time when they were  all metal / copper

and this acted as a kind of seal

regards  Marcus

[Steve Cureton]

I use a thin smear of Hylomar sealant all over both sides. It doesn't hurt anything (that I'm aware of) and can only help. I've replaced several heads in this way without problem.

[Deleted User]

I am with Sparky on this one, Just done this and the car ran really well today going up to Oulton to see the other chaps take in a few laps.
No leaks. Just remember to re-torque after a hundred or so miles.
Rob