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Balancer, Flywheel, Clutch Bolt Torque

Duncan

By Duncan,
in Tutorials / DIY / FAQ

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Duncan Grand Master

Duncan

Posted
Posted

This gets asked a lot, so here they are according to Nissan workshop manuals:

Rb26:

Balancer Bolt - 446-466nm (ouch!)

Flywheel Bolt - 124-152nm

Clutch Bolt - 34-44nm

Rb25:

Balancer Bolt - 142-152

Flywheel Bolt - 124-152nm

Clutch Bolt - 34-44nm

Swiper the Fox Grand Master

Swiper the Fox

Posted
Posted

good luck getting 450nm on the RB26 bolt without a tension wrench designed to do wheel studs up on a Euclid 170T dump truck.

I do them 150nm then get a pipe over it for another 1/4 of a turn....never had one come loose.

Swiper the Fox Grand Master

Swiper the Fox

Posted
Posted
what about putting some lock tight ova the thred? is this recomended i dont really want a pully popping out to say hello threw my bonnet at 8000rpm

DO NOT put Loctite or any other anerobic compound on them. ARP moly lube only please.

hojak Proficient

hojak

Posted
Posted
Hey mate,

Its 30mm for a RB26..

Cheers,

Thanks Johno.

what about putting some lock tight ova the thred? is this recomended i dont really want a pully popping out to say hello threw my bonnet at 8000rpm

You're pretty safe if u torque up the bolt to the above specs, loctite won't hurt, more of an assurance, but sucks to be the next person to rip the bolt out...haha.

(in saying that, some people are quite religious about using loctite)

  • 4 months later...
butch Collaborator

butch

Posted
Posted

just looking over this ... the balance bolt should be replaced with every clutch . i've looked at the threads on 25's and 26's and came to the conclusion it was a stretch bolt because it thins out close to head of the bolt. its just good practice . get it the right way first .

GTRsean Grand Master

GTRsean

Posted
Posted
good luck getting 450nm on the RB26 bolt without a tension wrench designed to do wheel studs up on a Euclid 170T dump truck.

I do them 150nm then get a pipe over it for another 1/4 of a turn....never had one come loose.

+1 I did it that way too before I put my engine in.

Pole was 4 meters long=sweet!

  • 8 months later...
  • 3 years later...
  • 3 years later...
iruvyouskyrine Grand Master

iruvyouskyrine

Posted
Posted

Anyone know the thread size for RB Flywheel bolts? Bought my RB20 for $20 and it has been sitting outside for the last 5 years so has some rust/filth in the threads in the crank. Looking go buy a tap to clean them up. Cheers.

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