Need help on my 1973 parking brake leak (2 Viewers)

[Bike42ri]

So I rebuilt my parking brake and I am getting a leak on the outside of the drum. I removed the drum and everything is dry on the inside. The backing plate seems to be slightly bent and would not allow the drum to seat all the way down to the proper place. I put a clamp on it and now it seats. I took the big nut off of the spline and see to shims there. The oil is leaking past the spline. The shims don't cover the spline openings. I have some pictures here. Any thoughts?
Lee

 

[pb4ugo]

Try non hardening sealant on the splines.

 

[ceylonfj40nut]

^ This. I usually ad some red RTV on the splines before putting it back.

 

[Bike42ri]

So, I put the drum on and put the sealant on right before I put the shims on? Can I use this?

 

[pb4ugo]

There's always a little movement between the splines. I prefer non hardening permatex in this application. Be sure to clean/degrease the splines. I think your current glue doesn't like the constant movement.

 

[Bike42ri]

There's always a little movement between the splines. I prefer non hardening permatex in this application. Be sure to clean/degrease the splines. I think your current glue doesn't like the constant movement.

What would you suggest?
Lee

 

[pb4ugo]

I believe it's permatex #2 forma gasket non hardening. It's on the label. It can be found at most ap stores

 

[Bike42ri]

I believe it's permatex #2 forma gasket non hardening. It's on the label. It can be found at most ap stores

That's great. Thanks for the help.
Lee

 

[pjohnson]

So, I put the drum on and put the sealant on right before I put the shims on?

You put it on the splines of the shaft, slide on the drum, add a little under the thick washer, put the nut on and tighten to specs.

 

[Bike42ri]

You put it on the splines of the shaft, slide on the drum, add a little under the thick washer, put the nut on and tighten to specs.

Both of my shims are the same. Should they be different?
Ler

 

[pjohnson]

Both of my shims are the same. Should they be different?
Ler

Typically there's a shim and a thick washer. As long as you can get it torqued properly and the cotter pin inserted, it is probably ok.

FJ40, FJ45 and FJ55 Parking Brake Assembly - Specter Off-Road

Toyota Land Cruiser parts since 1983. From the oldest FJ25 and FJ40 to FJ45 BJ40 FJ55 FJ60 BJ60 FJ62 FJ70 BJ70 FJ80 and 100 Series, SOR has the largest selection of top quality new and used OEM and aftermarket Land Cruiser parts in stock in the world. Specializing in restoration parts for both...

www.sor.com

 

[Bike42ri]

Typically there's a shim and a thick washer. As long as you can get it torqued properly and the cotter pin inserted, it is probably ok.

FJ40, FJ45 and FJ55 Parking Brake Assembly - Specter Off-Road

Toyota Land Cruiser parts since 1983. From the oldest FJ25 and FJ40 to FJ45 BJ40 FJ55 FJ60 BJ60 FJ62 FJ70 BJ70 FJ80 and 100 Series, SOR has the largest selection of top quality new and used OEM and aftermarket Land Cruiser parts in stock in the world. Specializing in restoration parts for both...

www.sor.com

I assume the flat washer would go on first, then the shim? Do you know the torque spec for that castle nut?

 

[pjohnson]

You can download an FSM. I'm sure it's there somewhere.

Land Cruiser Factory Service Manuals (FSMs)

Factory service manuals (FSMs) for your Toyota Land Cruiser ! From the 1950s to the present!

www.cruisercult.com

 

[Bike42ri]

You can download an FSM. I'm sure it's there somewhere.

Land Cruiser Factory Service Manuals (FSMs)

Factory service manuals (FSMs) for your Toyota Land Cruiser ! From the 1950s to the present!

www.cruisercult.com

Thanks you guys for your help.
Lee

 

[red66toy]

You may want to look at the dual seal speedometer housing from Valley Hybrids (@orangefj45 ) . Solves this common leak issue. I just did this swap on my 65 FJ40. I need to tweak my backing plate as well.

 

[hobbes]

Coolerman walks thru putting the parking brake together here and checking the preload on the speedo housing, including shim part numbers. Pages 3 and 4.

Rebuilding the 3 sp T-case: Reassembly Page 3

 

[Bike42ri]

You may want to look at the dual seal speedometer housing from Valley Hyrbids (@orangefj45 ) . Solves this common leak issue. I just did this swap on my 65 FJ40. I need to tweak my backing plate as well.
View attachment 2935749

That's how mine looked before I squeezed it together with a big clamp.
L

 

[Bike42ri]

Coolerman walks thru putting the parking brake together here and checking the preload on the speedo housing, including shim part numbers. Pages 3 and 4.

Rebuilding the 3 sp T-case: Reassembly Page 3

I'll take a look at it. Thanks