Ej22 head bolt tighting procedure?

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coil1z
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Ej22 head bolt tighting procedure?

Post by coil1z » Sun Mar 14, 2010 9:32 am

Here is what i have found that i am unsure about does anybody here have any information about this ?

From my manual:
oil washers and bolt threads
Tighten to 22 ft lbs
3 1 6
5 2 4
Tighten to 51 ft lbs
Back off 180 degrees first, then another 180 degrees
Tighten #1, #2 to 25 ft lbs ( 27.1 ft lbs Turbo)
Tighten #3, #4, #5, #6 to 11 ft lbs (14 ft lbs turbo)
Tighten all bolts 80-90 degrees (in sequence), DO NOT EXCEED 90 degrees
Finish tighten another 80-90 degrees (in sequence), DO NOT EXCEED 90 degrees

This is what my 1992 manual suggests.
The reason why this is done this way is To loosen in mid-sequence is to "crush" the gasket then release for a proper fit when tightened again. These are a multiple plate head gaskets and require this prior to installation.

Here my problem the gaskets that i am about to install are not "multiple plate head gaskets" they are made from some black graphite martial, would this mean i should only tighten and not loosen ?
Does any body here know :)

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TOONGA
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Post by TOONGA » Sun Mar 14, 2010 10:04 am

If they aren't the multiplate gaskets follow every step but the loosen off part

I read on this board and alot of others that the loosen off step can cause head gasket problems later on in the engines life even with the multi crush gasket

but lets wait and see what others have to say as well :)

TOONGA
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coil1z
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Joined: Sun Mar 14, 2010 9:24 am
Location: EDEN NSW

Post by coil1z » Sun Mar 14, 2010 11:26 am

Yeah i think i might go with this hope this works hehe

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