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Posted
I used Blue Hylomar on my Hilux, it's an automotive grade sealant so it's oil proof

It seemed to do a good job, but there was nothing I could do to stop the leak from the

lower bearing from the output shaft

You mean, the scale realistic oil leak? :D

- James

Posted

update: I have just done the glue gasket, last night help to do for bruiser and hilux, lastly spary oil press a few times and no leakage, very good.

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Posted

"Spray Oil" is probably too thin to be of much use in the gearbox... proper gear oil is usually thicker

methink Tamiya advised using their "Spray Oil" only 'cos it came out around the same time :)

Posted

oh ic, lets see any leak when back home tonight, 2 overnight not leak is safe enough for longterm use?

"Spray Oil" is probably too thin to be of much use in the gearbox... proper gear oil is usually thicker

methink Tamiya advised using their "Spray Oil" only 'cos it came out around the same time :)

Posted

I remembered reading in another topic about this that the vintage 3 speeds are known to leak, and sealing them helps but doesn't completely prevent it from leaking anyway... You can't really seal up the part where the axle comes out of the gearbox, right? ;) And it's the lower part of the tranny, so it would probably slowly sneak through the bearings to the outside world...

I think the product you referred to will work. I also have silicone RTV, one from Comma. Oilproof, Heatresistant up to 260C* :) Works nicely!

Posted

yeah **** right, I asked but not oil proof bearing so I just replace with normal ball bearings to all the brass ones except few which need machine to disamble. but I quite happy with the rtv now that it looks more tidy.

I remembered reading in another topic about this that the vintage 3 speeds are known to leak, and sealing them helps but doesn't completely prevent it from leaking anyway... You can't really seal up the part where the axle comes out of the gearbox, right? ;) And it's the lower part of the tranny, so it would probably slowly sneak through the bearings to the outside world...

I think the product you referred to will work. I also have silicone RTV, one from Comma. Oilproof, Heatresistant up to 260C* :) Works nicely!

Posted

Had the same thoughts last week, while doing the 3 speed tranny on my Blazer. Carefully rebuilt it, carefully sealed between all the joints, put a rubber shielded bearing in the lower casing where the front axle drive shaft comes out, and it still leaks like a sieve!!

Not too worried though, at least it gets an oil change everytime I run it!! As for the oil, I'm using 30W silicone shock oil in mine. It shifts gear really nicely using this :-)

Posted

I would be careful of using thick oil. I believe the reason for the thinner oil/ spray oil is to keep the gear change mechanism working well.

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