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Volvo penta diesel ad31d gasket change :tightening torque?

vpsonis

New member
Hi all,

I have recently changed the cylinder head gasket. The engine works OK but somebody tells me that after a few hours of running I have to tightrn again the bolts of the cylinder cup.The Workshop Manual does not say anything about re-tightenig.

Can anybody confirm this and in case I need to do it what is the recommended torque I should apply?

Thnaks in Advence for any help.
 
Tighten with 5 stages: ( check the screw's waists before doing)
1. Tighten all screws following the order as the picture below: 30Nm
2. tighten all screws 60Nm
3. tighten all screws 100Nm
4.Angle tighten 90 o in one movement
5. Final tighten 90 o in one movement

31-32 tignten.JPG
Hope that can help!
 
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