Central tube full of gear oil?

Diffs, axles, lockers, transmissions, portals, that kind of thing.
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compunerdy
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Central tube full of gear oil?

Post by compunerdy »

I pulled the front locker slave cylinder and what looks like a lot of gear oil came pouring out, I am assuming this is not normal.
Tim
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ChickenPinz
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Re: Central tube full of gear oil?

Post by ChickenPinz »

Did you check to see that the connected gearboxes are full-up with their oil?
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compunerdy
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Re: Central tube full of gear oil?

Post by compunerdy »

Will check, just wanted to make sure this wasn't a normal thing which I am pretty sure it is not.
Tim
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Puty
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Re: Central tube full of gear oil?

Post by Puty »

It's not normal, but I think most of the pinzgauers have at least a bit of oil in the Central tube.

O-RING 179-3C/69 (9023776 - Number 3 in the picture) or SHAFT SEALRING A42X55X8-VI 468 (9023860 - Number 8 in the picture) are leaking in this case.
pic_Pinzgauer_710-712_(Benzin)_091.02.04_Lagerhals.jpeg
pic_Pinzgauer_710-712_(Benzin)_091.02.04_Lagerhals.jpeg (154.13 KiB) Viewed 1334 times
As it's a pain in the ass to change them (you have to pull the axel) i would first try an oil leak stop additiv.
Last edited by Puty on Wed Dec 06, 2023 10:52 am, edited 1 time in total.
compunerdy
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Re: Central tube full of gear oil?

Post by compunerdy »

Yeah, I think its time to get the body off and do a complete reseal of the drivetrain.
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Andre
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Re: Central tube full of gear oil?

Post by Andre »

I’ve made those repairs in the field. Helps if the re is a press present.
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Re: Central tube full of gear oil?

Post by Stumbler »

I've had a similar experience a few years back ... okay, maybe 6 or 8 years ago. I got the impression that it occurs through increased pressure when you drive at high speeds. It tends to blow oil past the seals, especially if they are older worn seals. If you park on a steep uphill incline overnight it will leak a fair amount of it out. I don't remember where but there's a small hole there somewhere and if all the oil flows backward, it ends up draining out. Andre, do you know where that hole is?
Joeri
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Re: Central tube full of gear oil?

Post by Joeri »

Stumbler wrote: Mon Jan 01, 2024 2:04 pm I've had a similar experience a few years back ... okay, maybe 6 or 8 years ago. I got the impression that it occurs through increased pressure when you drive at high speeds. It tends to blow oil past the seals, especially if they are older worn seals. If you park on a steep uphill incline overnight it will leak a fair amount of it out. I don't remember where but there's a small hole there somewhere and if all the oil flows backward, it ends up draining out. Andre, do you know where that hole is?
Yes there should be a venting hole to release the presure that builds up in the diffs when driving.
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