RWD - rod bolts
                    

Volvo RWD 900 Forum

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rod bolts 900

I have a '94 940T.
The crank nose went bad (long, sordid story) & I am replacing it.
When retightening the rod bolts (angle tightened) I felt a few "give" (feeling of less torque required to turn them).
Is this normal or are they now toast?
Should I just replace all the rod bolts since they have been stretched once at the initial build?




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rod bolts 900

according to arp company.......they make headbolts and high quality bolts for special torque applications they recommend tightening and loosening each bolt up to 5 times before applying the final tightening under torque.

they state that scientific evidence proves that new bolts even with lubricant used require about 5 tightening/loosening repetitions BEFORE all inherent friction of the new bolt threads is equalized allowing for the final torque to be accurate.




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rod bolts 900

Howdy,

Torque to yield (15 ft/lb + 90 degrees) fasteners are not meant to be reused. Remember to oil the threads before tightening.

--
Mr. Shannon DeWolfe -- I've taken to using mister because my name misleads folks on the WWW. I am a 53 year old fat man. ;-)




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