Topic: L-43 Tranny leak fix

[Yotaman80]

Ive got an l-43 tranny in my 80 mini and it started to leak out where the shifter rod goes in to the shifter forks on the side cover. I was wondering if there was just a seal in there to replace or do i have to drop the tranny and have it rebuilt for it to get fixed. 

[mudmaster]

I've been wondering about this too. Mine leaks in the same place. Anyone??

[Marlin]

Yes, there is a shift shaft seal.

Toyota part #90311-18002.
List price around $4.97.

Since it is a metal clad type seal, (metal housing with a vulcanized nitrile double lip seal), it can be a real bugger to remove.
You need to be extra careful not to damage the 18 mm shift shaft when you carefully pry the seal out of the aluminum shift shaft housing.

Of course, the best way is to remove the side cover assm and replace the seal on the bench.

Also, I have seen many seals damaged upon installation. Be careful that you do not deform the seal when it is installed by driving it in too deep.

I recall making custom removal and installation tools many years ago when the L43 was very popular.

We have the seal in stock if needed, and also check the shifter base rubber bushings, qty 4, and nylon socket for the end of the shift handle.
L43's do not require a shift handle seat. It pivots in the cast iron base.

Marlin

[Yotaman80 [OP]]

Thanks a ton Marlin for all your input. If by any chance you would have some pictures or exploded views of the side shifter cover so I can see what im dealing with before I tear it down.

[mudmaster]

Thanks Marlin.

[Marlin]

I recall making my own seal puller.

I began with a 3" long piece of 1/2" water pipe that was threaded at one end and drilled it out to 18mm.
On the unthreaded end, I welded a 7/16" nut and then after sliding the tool down the 18mm shift shaft, I threaded the 1/2" male pipe thread into the ID of the seal until it began to spin in the aluminum shifter housing.
Using a 7/16" bolt and a 5/8" wrench, I threading in the bolt which pushed upon the end of the shift shaft, and the seal pulled right out. No damage to the shift shaft at all. I was so proud of myself.

Then I made an 18mm bore installation tool to hammer the new seal into place until it bottomed out.
This was preformed on the truck.

I may still have this tool in the L43 parts bin, but I am replying from a hotel room in Tucson, and will not be home until late Sunday.

You can access an exploded pic at: www.toyodiy.com and follow the prompts.

Marlin

[Yotaman80 [OP]]

When you get back to the shop and have a chance to check your parts bin, if the tool is still there I would be interested in buy it from you if that is all possible, if not some pictures would be awesome too. Thanks again for the help.

Safe Traveling

[Marlin]

If you only need to use it once, I really see no reason for you to buy it. I would be happy for you to borrow it.
We also have a seal for sell, hint, hint if needed.

I have not personally seen it lately, however, it has to be in the L43 parts box.

I will do my best to take some pics and post then this Monday .

Marlin in Tucson

[ninja turtle]

hmmm.. could i get in line if that tool shows up? i would buy the seal from you guys of course.

[Yotaman80 [OP]]

Im ofcourse going to buy the seal from you guys. Ill also get those 4 plastic bushing for the shifter support and the nylon socket at the shifter base to tighten the shifter up. Borrow it will be just as good, then i could use it as a template to build my own trail tool.

Thanks Drew

[Marlin]

A big Thank You to Big Mike for helping his old man out again.

Please find the three pics and you will see my home made tool.
If you are interested in giving my old tool a try, please call the sales office and ask for John.

I will talk to him first thing in the morning.

Marlin

[Yotaman80 [OP]]

Finally got around to call and got all the parts comming along with the tools that Marlin so greatfully let me borrow. Fixed the leak and installed some new shifter bushing and a nylon shifter socket.

 

Thanks a Ton for all the help and for lending me your tools. 

[80Toyman]

I know this is an old thread but I have the same issue on my 1980 Toyota 4x4- does anyone know where I can get a tool or any other way to remove the seal?