When Fitting a 1.8 MLS Gasket

[SMC Trading]

Can anyone tell me when fitting the new MLS head gasket do you tighten the head bolts to the same torque?

I seem to remember the torque setting is different when fitting the MLS gasket

[SMC Trading]

Anybody ?

Sorry to rush but standing I'm here with a torque wrench ready.....

[T-Cut]

I've not found a reference to a different torque setting, but since the new head bolts remain the same, I'd say the torque should remain the same too. This is because the standard setting puts the bolts on or near their elastic limit, which is by design. If you go above this, the bolts will lose tension and clamping will reduce. This section from an engineer's overview of the K18:

Quote
The metallurgy of this bolt has been very carefully designed and the torqueing at 64Nm brings the bolt to its yield point. Effectively the point at which the bolt will stretch with the block under its cyclic loading, to distribute these loads very evenly throughout the block.
Unquote

The source is: http://www.sandsmuseum.com/cars/elis...ine/kingk.html

TC

[SMC Trading]

Originally Posted by T-Cut

I've not found a reference to a different torque setting, but since the new head bolts remain the same, I'd say the torque should remain the same too. This is because the standard setting puts the bolts on or near their elastic limit, which is by design. If you go above this, the bolts will lose tension and clamping will reduce. This section from an engineer's overview of the K18:

Quote
The metallurgy of this bolt has been very carefully designed and the torqueing at 64Nm brings the bolt to its yield point. Effectively the point at which the bolt will stretch with the block under its cyclic loading, to distribute these loads very evenly throughout the block.
Unquote

The source is: http://www.sandsmuseum.com/cars/elis...ine/kingk.html

TC

Thanks for that, for some reason I thought if was different as the bottom rail is much more heavy duty and could cope with more stress.

I'll get tightening now then

[Lates]

20Nm + 180 Degrees + 180 Degrees, what torque did you use les ?

[SMC Trading]

Originally Posted by Lates

20Nm + 180 Degrees + 180 Degrees, what torque did you use les ?

Thanks for the info, going to tighten it down in the morning

[GaSrAm]

just a little q.. what size is the bolt top as i dont seem to have a socket that fits correctly

[chris75]

Originally Posted by GaSrAm

just a little q.. what size is the bolt top as i dont seem to have a socket that fits correctly

It's an E12 torx !
See this thread http://www.the75andztclub.co.uk/foru...highlight=head
The question was about the 1.6 version of the k16 engine , but 1.4,1.6 and 1.8 versions are the same.

[Lates]

Les, hope all went well this morning. Sorry for the lack of phone signal but got the jist of it all