Can The Be. Damper Bolt Torque

[MJTru]

I have searched like crazy and have been finding mixed results on an rb26 damper bolt torque spec.

The manual is somewhere in the range of 446 nm. Is this right? that seems a bit high. A 2jz im working on is 249 foot pounds.

I just want to make sure as i dont want to snap this bolt.

Edited July 11, 2015 by MJTru

[Piggaz]

It's right. It's very, very tight!

[MJTru]

Wow. Holly carp

[MJTru]

Thanks Piggaz. What method do you guys use to hold the crank for that kind of torque.

[Ben C34]

Correct.

Rb26 specification is Crazy mental crazy tight..

[jiffo]

It's a lot bigger bolt than a 2JZ and clever Toyota has means to hold the balancer while tensioning the centre bolt.

If you use an ARP replacement for the RB26, the torque is lower??

I use a ring gear stopper to hold the crank.

More fun removing the starter although I can be pushed up and clear, doesn't have to come right off.

I use a 14mm universal socket on long extensions all the way from the alternator to reach the top bolt.

[GTR_JOEY]

fifth gear, handbrake, chock wheels?

That's how I got it off

[jiffo]

Not with a 26 and you'll damage any box using overdrive, direct is your strongest gear.

I can only presume it wasn't done up to correct torque previously or perhaps you used a impact gun?

[GTR_JOEY]

That is a good point!

It was tight but didn't damage anything as far as I can tell

Might have got lucky

[Dobz]

I do the same as joey when tightening but use 3rd gear because i'm paranoid of breaking something when I feel all the flex through the driveline. With someone on the brakes and the handbrake on I can wrench on the breaker bar with as much as I can give without the car moving. I've done my 2.8 patrol the same way and they seem to be notorious for spitting balancers but 4 years on there's no sign of loosening.

[GTR_JOEY]

Yea for sure man, I used chocks cause I was by myself other wise yea I woulda had someone on the brakes

My brain wasn't functioning that day when I put it in 5th haha

[jiffo]

Why on earth would you use 3rd gear, may as well try 1st and wind the thing down the street.

Use direct !!!!!!

Rd28 has similar balancer torque to the 20/25/30, only 105 to 110 ft lbs.

Baby stuff when compared to the 26.

[r32-25t]

What difference does it make what gear you use, the engine makes more torque then that bolt needs to be tightened to

[MJTru]

Hmm intresting to see all the ways you guys do it.

So today we started on the rb25s. I noticed a hole in the box that i used to jam the flywheel with and was able to get some good torque on the bolt but my torque wrench only went to 175 foot pound. I will get a bigger one tomorrow. Im not feeling the in gear method. But i must admit that ive used it before. I rather take the starter out. What i do find wierd is the manual doesn't show how to do it.

[89CAL]

The manual tells you to remove the starter and install a tool to hold the flywheel while removing the bolt, same for installation.

Removal is easy, Installation isn't even so bad on RB25's. Torque is small compared to 26's (142-152Nm)

[MJTru]

Hmm. I didnt notice that part. Isnt the rb26 446 Nm

[Missileman]

Never been able to find the correct ring gear stopper, so I need a helper to tighten while I jam a big-arsed screwdriver into the ring gear.

To get to the top bolt on the starter motor i use an impact socket then 10" wobble extension followed by normal extensions until the ratchet is near the alternator.

[GTR_JOEY]

I know what you mean Brett, but I'm not sure if the gear has been engineered to have that much force on the reverse side of it.

Obviously that's the way force is being applied when you are undoing the bolt

[r32-25t]

I meant when doing it up, as the engine turn clockwise when running and you are turning the engine clockwise when tightening the bolt, undoing I just use the starter motor

[XKLABA]

Big bar on ground and hit key to start starter motor, undone easy easy