Steering gear box rebuild (1 Viewer)

[concretejungle]

How was it ruined?

I guess it wasn't stretched enough so when I inserted "the other side of the gear assembly" to slide it in, it caught the edge of the ring and tore it. So the ring just wasn't fully seated into the groove. In hindsight I think stretching the ring ever so slightly is the right move.

 

[CharlieS]

Thank you, @concretejungle

 

[80serie]

Put the Teflon seal in hot water for a few minutes to softened it up.
Be careful when you insert the piston all the way in not to cut the seal on the rim inside the sector shaft opening. Use a screw driver to gently push the seal into it’s groove while you push the piston to it’s final position.

 

[Shipwreck]

I usually recommend to people rebuilding their box to order an extra rebuild kit from Rockauto or similar even if they are using an OEM kit. They are only $25-35. It is cheap insurance and saves on downtime in case you slice one of the Teflon seals.

 

[Saito]

It could’ve been a feral cat at home or small critter while camping, nested in there and scrambled to get out on a start up. You probably didn’t even notice it except as an odd noise. One of the things that has been recommended in the last several years, while you’re out camping, is to pop the hood and leave it open while your rig is parked, and not being used. It helps to keep critters from nesting in your engine compartment. Just a thought.

Put the Teflon seal in hot water for a few minutes to softened it up.
Be careful when you insert the piston all the way in not to cut the seal on the rim inside the sector shaft opening. Use a screw driver to gently push the seal into it’s groove while you push the piston to it’s final position.

You can also take some emery cloth to that sharp a^* machined edge to smooth it out. No reason it needs to be sharp. That’s a recommendation I got from the U tubz video I watched.

 

[haganLX45096]

Fellas...updating my gearbox to a 105 shaft. To say I've encountered problems is an understatement. Can anyone id where this bearing spring (dont know tech term) might come from. I had some issues removing the 105 shaft after a test fit and this popped up on my working station.

 

[80serie]

Fellas...updating my gearbox to a 105 shaft. To say I've encountered problems is an understatement. Can anyone id where this bearing spring (dont know tech term) might come from. I had some issues removing the 105 shaft after a test fit and this popped up on my working station.

View attachment 3917571

View attachment 3917572

As per the FSM I don’t see any spring in the exploded view. Maybe the spring is specific to the 105.

 

[haganLX45096]

I'm wondering if that oil seal has a spring in it... I'm reading that they can.

 

[80serie]

I'm wondering if that oil seal has a spring in it... I'm reading that they can.

Good catch! Maybe it is.

 

[Malleus]

That's called a garter spring...it came from the oil seal.

 

[haganLX45096]

That's called a garter spring...it came from the oil seal.

Thank you!

 

[haganLX45096]

Thank you!

Guessing it is this guy... 9031136005. I really do love the Amayama. Why can't the dealer parts sites be this user friendly.

https://www.amayama.com/en/genuine-catalogs/epc/toyota-japan/land_cruiser/FZJ80G/76327/chassis/4505

 

[CharlieS]

What're people doing in the absence of the SST for this step to "squeeze" the teflon ring?

View attachment 3898783

I can't remember who suggested this idea, but what I ended up doing was using the shaft itself with liberal ATF to pre-form (stretch?) the seal. I did the heart shaped thing, and it did deform a bit, but I was able to smooth it out in place with some random tool or another. I suspect this SST is just an easier method to make sure the teflon ring is as seated as it can be. An o-ring acts as a spring behind teflon seals on a couple of places in the steering box, which I haven't run into previously. I learn something new every day.