Central tube full of gear oil?
Posted: Sat Dec 02, 2023 6:06 pm
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.
THE PORTAL HUB - Pinzgauers, Haflingers, Volvo 303s and more!
From Vince Sweeney: You have arrived at the original "Real 4x4's" Forums, founded in 1999.
http://www.real4x4forums.com/PinzgauerBBS/
Central tube full of gear oil?
http://www.real4x4forums.com/PinzgauerBBS/viewtopic.php?f=13&t=12739
Page 1 of 1
Re: Central tube full of gear oil?
Posted: Mon Dec 04, 2023 8:14 pm
Did you check to see that the connected gearboxes are full-up with their oil?
Re: Central tube full of gear oil?
Posted: Tue Dec 05, 2023 4:44 pm
Will check, just wanted to make sure this wasn't a normal thing which I am pretty sure it is not.
Re: Central tube full of gear oil?
Posted: Wed Dec 06, 2023 4:16 am
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.
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.
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 (154.13 KiB) Viewed 2084 times
Re: Central tube full of gear oil?
Posted: Wed Dec 06, 2023 10:47 am
Yeah, I think its time to get the body off and do a complete reseal of the drivetrain.
Re: Central tube full of gear oil?
Posted: Fri Dec 22, 2023 6:33 pm
I’ve made those repairs in the field. Helps if the re is a press present.
Re: Central tube full of gear oil?
Posted: 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?
Re: Central tube full of gear oil?
Posted: Tue Jan 02, 2024 10:49 am
Yes there should be a venting hole to release the presure that builds up in the diffs when driving.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?