Gearbox evaluation

Thanks Cap
I did look on utube to see what you had done - but I think you said somewhere that you were going to do it later. I may have been mistaken. Love your videos.
I’ll see how far I go when I lift off the tops. [emoji6]

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Originally Posted by Cap

What i did with mine is to remove the throw out bearing assembly (to inspect the bearing also) and the gear level mount, then I removed the bellhouse. This gave me access to the internals of the gearbox, you can remove the layshaft also to inspect the gears and with a torch look at the main gears. You can also check 3rd gear bush for wear.I dont know if this is the best way to check, but for the sake of a bellhouse gasket and throw out assembly gasket (if its the older model like I have) you got a good view of the internals.For those much more experienced than myself, please confirm if this is a silly idea. I hate for someone to take my comments as a way to do something when its not really a great idea [wink11]

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That's exactly what I usually do. The only problem is the "While it's apart I might as well...........
.W.

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Originally Posted by B.S.F.

That's exactly what I usually do. The only problem is the "While it's apart I might as well...........
.W.

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Haha - that went through my mind too and it wasnt an easy decision to just put it back together. Luckily I have another gearbox that ill rebuild and then swap it over.

I had my gearbox out for months and procrastinated about a re-building not having done this before.

Did all the visual checks etc, but it wasn't until I did a test under load that I realised the 4th gear bearing was shot. (gearbox installed and wheel up on chocks)

The cost of the new seals, gasket kit and bearing kit was minimal...all under $60?

I found the youtube video from the guy in NZ and set about a rebuild.

It wasn't that difficult once you got into it on a clean and tidy bench....you may need a bearing puller for the main bearing which I borrowed. everything else was relatively simple.

I didn't overhaul the transfer case....but ti didn't need it.

I felt much happier knowing it had been overhauled.

It still makes a whine in first gear....but I think that because its 55 years old!

Col.

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Originally Posted by Colin Pedersen

I had my gearbox out for months and procrastinated about a re-building not having done this before.

Did all the visual checks etc, but it wasn't until I did a test under load that I realised the 4th gear bearing was shot. (gearbox installed and wheel up on chocks)

The cost of the new seals, gasket kit and bearing kit was minimal...all under $60?

I found the youtube video from the guy in NZ and set about a rebuild.

It wasn't that difficult once you got into it on a clean and tidy bench....you may need a bearing puller for the main bearing which I borrowed. everything else was relatively simple.

I didn't overhaul the transfer case....but ti didn't need it.

I felt much happier knowing it had been overhauled.

It still makes a whine in first gear....but I think that because its 55 years old!

Col.

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It's allowed to!
Most of us who are over 55 years of age whine a bit every now and again.

Cheers, Mick.

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Originally Posted by Colin Pedersen

....
It still makes a whine in first gear....but I think that because its 55 years old!

Col.

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It would have done that when new - they are straight cut gears.

That vid from the guy in NZ makes it look like a doddle to rebuild... but then again he has a super clean workshop and even clean hands! Very unlike me [bigwhistle]

A quick update
I cleaned the really oily and cruddy case and was expecting to find similar on the inside. Surprise! The oil looked liked it had just been changed, even the hole in the bottom of the sump plug was clean. The gears mesh really well and there is virtually no end play. The only fault I could find was one broken spring on the reverse gate. New pair of springs on their way.
So have ordered gaskets, front and rear oil seals and will be carefully sealing it all up again. Thanks for all the input.
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