G260 output flange nut removal and torque

[digger]

Have to do some temporary repairs to the clutch throw-out bearing, pivot and some seals even though going to do a full rebuild later this year with engine swap need to keep car on road a while longer yet.

In any case having difficulty getting the rear 30mm nut off the back of the trans to fix the seal as decided to fix leak after i bolted it back in place, longest breaker is too long and next size is a bit short as car is on jack stands . I'm going to try a bit of heat to soften the loctite or whatever was likely used and give it another go. Any other tips? my impact is a POS so probably not upto the job.
I made a flat bar that bolts to the flange so can react against it.

What is the proper torque to do it back up?

[e30davie]

yer that bastard nut took me a while to get off. I did it with the gearbox out side the car and ended up using a 2m length of pipe over my breaker bar and unfortunately broke one of the gearbox mount "ears" off the gearbox in the process (as that was how i was holding the output flange still) - so good idea with your flat bar.....

I honestly don't think i could have gotten it off with the gearbox in the car unless it was on a hoist to get the giant breaker bar in.

I even took it to the local drive line shop who had a 3/4" rattle gun and it didn't get it.

A bit of heat will certainly help as i suspect on mine anyway they used the super hard core locktite..

Not sure what the torque spec is, check the Bentley manual - i dont recall it being that tight - not as tight as it was to remove anyway. also check the Bentley on where they want you to put the sealant before you put the nut back on. its quite specific.

[digger]

yer that bastard nut took me a while to get off. I did it with the gearbox out side the car and ended up using a 2m length of pipe over my breaker bar and unfortunately broke one of the gearbox mount "ears" off the gearbox in the process (as that was how i was holding the output flange still) - so good idea with your flat bar.....

I honestly don't think i could have gotten it off with the gearbox in the car unless it was on a hoist to get the giant breaker bar in.

I even took it to the local drive line shop who had a 3/4" rattle gun and it didn't get it.

A bit of heat will certainly help as i suspect on mine anyway they used the super hard core locktite..

Not sure what the torque spec is, check the Bentley manual - i dont recall it being that tight - not as tight as it was to remove anyway. also check the Bentley on where they want you to put the sealant before you put the nut back on. its quite specific.

yeah got a PM with the following specs

https://www.e30zone.net/e30wiki/index.php/Torque_Settings

"Output Shaft Flange Nut (Getrag Transmission) - 170Nm then loosen completely and then tighten to 120Nm"

i may need to jack up the car a bit more if heat doesn't work. I can get my long breaker on but not enough arc to swing so maybe another 4" will higher might be enough.

[digger]

Got stupid thing off with heat and cheapo Aldi impact

[reelizmpro]

I was going to say, I usually use heat and impact.

[jbontke]

I got mine off with a good impact (can't remember if it was a pneumatic Snap-On or my BAMF 1/2 Milwaukee), maybe borrow one?

[digger]

I got if off, the straw that broke the camels back was a bit of heat.

[varg]

Good that my suggestion worked before I even got here. Propane torch and a cordless craftsman impact did it for me when I changed the rear seal.