Hilux Gearbox Seal Issues??
Submitted: Friday, Dec 26, 2008 at 11:36
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Member - John F (NSW)
Seasons Greetings to all.
Does anyone know of gearbox seal issues with current Hilux? The usually
well-informed BIL mentioned this over Xmas drinks, something about oil leaking between gearbox and/or transfer case, and that there was a fix for it.
Should these fluids be checked at every service as a precaution(I'm away from home at the moment so can't check the service manual)?
Thanks in anticipation.
John.
Reply By: toyocrusa - Friday, Dec 26, 2008 at 12:04
Friday, Dec 26, 2008 at 12:04
Hi. Not sure about a known issue with the Hi lux but it is a problem with a lot of 4wd's. The gearbox seal allows oil to travel into the transfer case which lowers the gearbox oil and overfills the transfer oil. It should be checked at each service and if there is any
sign of incorrect oil levels it is usually better to have it repaired.Regards, Bob.
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Follow Up By: handy - Friday, Dec 26, 2008 at 15:10
Friday, Dec 26, 2008 at 15:10
with that problem you mean cruisers dont ya.
nissan never had that prob. cheers
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Follow Up By: toyocrusa - Friday, Dec 26, 2008 at 17:29
Friday, Dec 26, 2008 at 17:29
I actually owned a Range Rover years ago that did it.
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Follow Up By: handy - Friday, Dec 26, 2008 at 19:12
Friday, Dec 26, 2008 at 19:12
you admitt that you owned one ?? lol
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Reply By: Motherhen - Friday, Dec 26, 2008 at 15:26
Friday, Dec 26, 2008 at 15:26
John, I understand it has long been a problem with Cruisers and Hiluxes. Our present Cruiser has a 'bypass tube' fitted now, so the oil just goes back - fitted by a mechanic. When our son used to work at a local
mine, he said it happened all the time with the Toyotas there.
Motherhen
AnswerID:
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Reply By: Member - Olcoolone (S.A) The O - Friday, Dec 26, 2008 at 15:57
Friday, Dec 26, 2008 at 15:57
Haven't heard of this problem before, this problem hasn't appeared on The New Hilux
forum either.
Anotherr urban myth.
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Reply By: Member - Kiwi Kia - Friday, Dec 26, 2008 at 16:05
Friday, Dec 26, 2008 at 16:05
This was a problem with some Troopys. You can buy the transfer hose mod (including fittings) on e-bay quite cheaply. Same oil in each box so the oil mixing is not a problem. The hose between transferbox and gearbox keeps the levels right in each box.
.
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Reply By: Member - Phil G (SA) - Friday, Dec 26, 2008 at 17:59
Friday, Dec 26, 2008 at 17:59
This was almost universal on LandCruisers built in the 1970's and 1980's. Rarely ever happens since.
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Follow Up By: Motherhen - Friday, Dec 26, 2008 at 22:39
Friday, Dec 26, 2008 at 22:39
Our current Cruiser is 1996 - i thought it was a pretty general problem.
Motherhen
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Follow Up By: Member - Phil G (SA) - Friday, Dec 26, 2008 at 23:52
Friday, Dec 26, 2008 at 23:52
My understanding is:
If your Cruiser is an 80series with the H150F box, I believe its impossible. If its a 75series, with a H55F box, it is possible, but by 1996, uncommon.
The 2 year old Hilux in question runs a R151F box, and I haven't heard of any having this poblem.
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Reply By: Member - Vic S (VIC) - Friday, Dec 26, 2008 at 18:33
Friday, Dec 26, 2008 at 18:33
John
dont know about Hilux but land cruiser is helped using the bypass kit which fits between the filler plugs on the gear box and transfer case,if you do pull the box apart and replace the seal take your old seal to a bearing / seal specialist and get a double lip seal as used in auto transmissions.
Vic
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Reply By: Member - John F (NSW) - Saturday, Dec 27, 2008 at 07:28
Saturday, Dec 27, 2008 at 07:28
Thanks very much everyone. Looks like one of those things to monitor regularly. Appreciate all the responses.
Regards, John.
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Reply By: get outmore - Saturday, Dec 27, 2008 at 10:35
Saturday, Dec 27, 2008 at 10:35
alot advocate the balance pipe between the 2 but with
mine oil went from the higher G box to the lowr TC and last I checked oil doesnt flow up
hill so the balance pipe was useless
about every 10k I would drain the TC of excess and top the g box up
Havnt heard of it being an issue for quite a while I thinkit was with older cruisers with a few ks
i doubt the new hiluxes suffer the problem and certainly not for few more years
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Follow Up By: Member - Phil G (SA) - Sunday, Dec 28, 2008 at 17:00
Sunday, Dec 28, 2008 at 17:00
My 55 and 47series used the pump downhill, like yours.
But my 61series used to pump into the gearbox. I reckon it was because the transfer didn't have its own breather, and the pipe at least stopped any pressure difference.
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Reply By: Madfisher - Sunday, Dec 28, 2008 at 13:25
Sunday, Dec 28, 2008 at 13:25
Very few 4wds under 10 yrs old do it. Happened to me on old 91 Jack, luckily spotted over front of boat and topped up with heavey g/box oil to get home
Cheers Pete
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