Help Urgent - Transfer Case Refill

We haven't eliminated the Gear box oil is not being forced into the transfercase via gearbox input. The seal at the rear of the gearbox could be leaking and as the gearbox has an oil pump the pressure is forcing oil past the seal and into the transfer??????
Generally it is pretty impossbile to over fill a transfer without knowing , as oil wolud bew pouring out of the filler hole, unless it was on a slope leaning forward and the rear was up high.

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Originally Posted by Roverlord off road spares

We haven't eliminated the Gear box oil is not being forced into the transfercase via gearbox input. The seal at the rear of the gearbox could be leaking and as the gearbox has an oil pump the pressure is forcing oil past the seal and into the transfer??????
Generally it is pretty impossbile to over fill a transfer without knowing , as oil wolud bew pouring out of the filler hole, unless it was on a slope leaning forward and the rear was up high.

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Impossible.

There is a seal at the back of the R380, space (and a leak passage) then the input shaft seal for the t/case.

IMO the most likely scenario is what I described above, we've seen it before.

I would be tempted to do a complete oil change on both gearbox & transfer case, then start a checking routine of both, until you are sure in your own mind what is happening. Be a good idea to fix the transfer case leak at this point, Bob

Thanks heaps everyone. I think best bet for me would be for a mechanic to have a look as I have no experience with gearboxes etc if the seal is worn I wouldn't know where to start there. Hopefully I can get it there no problem.

Is this the gearbox filler plug and drain plug?




Attachment 59025

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Originally Posted by ShaunR

Is this the gearbox filler plug and drain plug?
Attachment 59025

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yes. you need a big torx bit to get the filler plug out - I ended replacing mine with one from a series gb that had a square head as the local mechanic was getting the irrits at me always asking to borrow his torx bit

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Originally Posted by Alex 110

yes. you need a big torx bit to get the filler plug out - I ended replacing mine with one from a series gb that had a square head as the local mechanic was getting the irrits at me always asking to borrow his torx bit

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Koken is a good quality Japanese brand.

SOCKET TORX 1/2DR - 60mm T55 - Koken

I'm sure you can find cheaper ones on eBay if you don't want to spend $20 on decent tools.

I look at it this way: You are doing the job yourself because it is cheaper, and you know you'll do a better job than a bored mechanic. So rather than doing a "Bodgit & Scarper" job using the wrong tools and generally making a hash of it, spend a bit of what you are saving on the tools to do the job properly. You'll save yourself a lot of grief in the long run.

cheers
Paul

Cheers guys will get it sorted tomorrow for sure

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Originally Posted by rick130

Impossible.

There is a seal at the back of the R380, space (and a leak passage) then the input shaft seal for the t/case.

IMO the most likely scenario is what I described above, we've seen it before.

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I'm not so sure.

My transfer case level keeps increasing, and the gearbox level decreasing. I have drained and filled both correctly myself, yet the levels still change :eek:

My guess was the gearbox seal gone, then the pressure forcing its way past the TB input seal. I also have a leak from either between the GB & TB (Which would tie in with the GB output seal gone) or the intermediate shaft O ring.

Will be having a look once I get the time, along with changing the clutch release bearing, clutch, flywheel, injector harness, etc.....................

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Originally Posted by kelvo

I'm not so sure.

My transfer case level keeps increasing, and the gearbox level decreasing. I have drained and filled both correctly myself, yet the levels still change :eek:

My guess was the gearbox seal gone, then the pressure forcing its way past the TB input seal. I also have a leak from either between the GB & TB (Which would tie in with the GB output seal gone) or the intermediate shaft O ring.

Will be having a look once I get the time, along with changing the clutch release bearing, clutch, flywheel, injector harness, etc.....................

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Can't happen with the R380/LT85/LT77 and the LT230 t/case, too much air gap between compartments and has a drain between the two housings too, unless the drain between the housings is sealed up.