Main bearing cap bolt torque?

[CMF_Danvillan]

Are these tension bolts like the head bolts? Anyone know what torque they should be tightened too? I followed the Haynes torque spec while checking the clearances but it seem like these should be tighter. Any input would be appreciated.

 

[CMF_frank2]

i always give the about the same as the headbolts dan (100 ish nm ?)
and i always start from the middle and work outwards

 

[CMF_Danvillan]

Thanks Frank figured you'd be all over it.

 

[CMF_Danvillan]

Hey Frank, I went to about 80nm but the crank was really stiff to turn. Now I'm use engine assembly lube cause the motor will probably sit around for a while after rebuild. Is it normal for the crank to be stiffer to turn when using engine lube?

 

[CMF_frank2]

you should only feel a slight drag dan, are they new shells ?

 

[CMF_Danvillan]

Nah just the old ones. The clearances were good on the dry fit so thinking its the engine lube but I would say its a bit more than a slight drag.

 

[CMF_frank2]

hmm, you might spin a shell if they,re too tight mate, i would tighten each cap of the girdle 1 at a time, to see if its just the 1 journal

 

[CMF_sva86]

The manual says 25-30nm,then 60-65 degrees clockwise with angle wrench.
It is mentioned that it is very important not-to tighten them with toque,but to degrees.