Thread: LT230 Intermediate shaft seal

Originally Posted by MinniTheMoocha

My Defender 110 LT230 has had a small leak from the intermediate shaft o'ring seal since I got it and it is slowly getting worse.

Just wondering if anyone knows if the o'ring seal of the intermediate shaft can be replaced without pulling down the whole thing.

If you have to pull the Lt230 out to do this and then strip it down what are the things you would also do?

Is this something you need specialised tools for? I have fixed a few other things like timing belt, diff pinon seal etc. so feel I am getting better with the spanner but I work a keyboard on my day job.

Any help would be great.

Thanks

Hi,

if you do this job, we use a slightly thicker section O ring, part number BS 121, 26.65 x 2.62 and fit it with a smear of silicon,

Dave

Handy hint! Thanks!

Well after putting up with the leak for nearly two years Michael2 and myself pulled out the T/C and replaced both o'ring seals, gaskets and the rear output shaft seal.

The T/C was in fantastic condition. As there was no sign of leaking from the rear of the gearbox we didn't replace the rear seal. I hope this doesn't come back to bite me.

I did use a new crush sleeve when refitting the intermediate shaft to get the bearing preload right. It only cost $3 so not too pricey.

Its a darn heavy lift back in so wish I had made the mounting plate.

Anyway its nice to not see the drips coming from the T/C anymore.

MinniTheMoocha, I have a small leak that appears to be coming down the front of the transfer case next to the front output shaft, I have had no luck spotting the cause of this leak as it is up out of sight, is this perhaps the one you have just repaired?...

Cheers,

Fraser

Originally Posted by fraser130

MinniTheMoocha, I have a small leak that appears to be coming down the front of the transfer case next to the front output shaft, I have had no luck spotting the cause of this leak as it is up out of sight, is this perhaps the one you have just repaired?...

Cheers,

Fraser

maybe, but can also be coming from the diff lock switch or actuator shaft.
You'll have to lift the floor to tell.

Originally Posted by fraser130

MinniTheMoocha, I have a small leak that appears to be coming down the front of the transfer case next to the front output shaft, I have had no luck spotting the cause of this leak as it is up out of sight, is this perhaps the one you have just repaired?...

Cheers,

Fraser

Use a torch and look at the top of the T/C. You should be able to see the end of the intermediate shaft. When I first got the car it had just a weep that took a little while to accumalate on the bottom of the T/C.

It progressed to a drip after a run in the car. Then I noticed the oil patch just kept getting bigger after each drive.


The leak I had clearly was coming from the shaft and silicon had been smeared over the end of it to try plug it up.

Check as per Rick's suggestion just to be sure where the leak originates from.

I hope this helps and let us know how you go. Sorry for late reply as been busy at work so somewhat offline.