Torquing composite head gaskets . . .

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odyssey

Active Member
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364
Location
Derbyshire
Hi all - been lurking here for a while, but as this seems the most responsive of the various forums, I though it was time I registered. . .

In the 'putting back together' stage of the top end rebuild of my 4.2 LSE.

It's a '93 suffix A engine with 14 bolt heads, and I'm using composite gaskets with the non-stretch original bolts.

Can someone confirm whether I should torque the bolts to the original tin gasket 68 ft/lb or the 28 ft/lb + 90 degrees + 90 degrees?

(I know I'm losing CR but I prefer reliability rather than power)

TIA

Alastair
 
Hi all - been lurking here for a while, but as this seems the most responsive of the various forums, I though it was time I registered. . .

In the 'putting back together' stage of the top end rebuild of my 4.2 LSE.

It's a '93 suffix A engine with 14 bolt heads, and I'm using composite gaskets with the non-stretch original bolts.

Can someone confirm whether I should torque the bolts to the original tin gasket 68 ft/lb or the 28 ft/lb + 90 degrees + 90 degrees?

(I know I'm losing CR but I prefer reliability rather than power)

TIA

Alastair

I think it should be 68lb feet. But do it in stages. The later angle torque is for stretch bolts, as far as i am aware.
 
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