Leaky locker switch plate

Diffs, axles, lockers, transmissions, portals, that kind of thing.
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opiwan
Posts: 10
Joined: Sat Jul 28, 2012 11:36 am
Location: Big Sky Montana

Leaky locker switch plate

Post by opiwan »

So I'm new to the whole Pinz world and pretty stoked to be here, but I'm finding that things I thought were going to be simple can get a little complex! In an effort to get things tightened up on my 710m I'm changing fluids and doing gaskets at the same time. So this evening after draining the rear diff I went to pull the switch cover off and to my surprise there was more fluid to drain! Anyway, I'm going to go dig through the manual now but I suspect that the diff was overfilled in the past and the fluid worked its way out through the switch. Any input would be great, thanks.
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audiocontr
United States of America
Posts: 1868
Joined: Fri May 01, 2009 1:30 pm
Location: Buffalo NY

Re: Leaky locker switch plate

Post by audiocontr »

Behind the front levers? Thats the fill point for the lockers
1973 712m
1968 Haflinger
1965 Pathfinder
1978 GMC Palm Beach (Hey, its got 6 wheels!!)
undysworld
Norway
Posts: 1776
Joined: Fri Apr 16, 2004 8:08 am
Location: Blue Mounds, WI

Re: Leaky locker switch plate

Post by undysworld »

opiwan,

I'm pretty sure there are o-rings and seals between the diff and locker/switch area, which should prevent such leakage. But I don't recall as there was a drain if it did leak. So perhaps it's a slow leak and you can just keep the diff. topped off.

Here's a parts breakdown: http://www.pinzgauer.com/parts.php?cat= ... view=03-01 I'd suspect parts 16, 17, and 19.

I believe you can get to these without having to pull the differential apart. Perhaps wiser ones will confirm or dispel this comment.
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pcolette
United States of America
Posts: 1614
Joined: Sun Dec 10, 2006 7:38 pm
Location: Southwest Wisconsin

Re: Leaky locker switch plate

Post by pcolette »

I had this same issue where there was a build up of fluid under the diff switch cover. The diff switch(es) are threaded in and have a seal between them and their seat.
http://www.pinzgauer.com/showdetails.ph ... o=9003717/
Sometimes the seal gets old and begins to leak and I also found that the plastic insert of the switch sometimes leaks due to the change in temperature. The plastic and the metal expand and contract at different rates and over time apparently fluid leaks thru.
Heres the switch:
http://www.pinzgauer.com/showdetails.ph ... 103322970/
Paul C.
_________
'73 Swiss 710M
'89 Puch 230GE
opiwan
Posts: 10
Joined: Sat Jul 28, 2012 11:36 am
Location: Big Sky Montana

Re: Leaky locker switch plate

Post by opiwan »

Thanks for the help guys! I think I've got it figured out, just the o-ring on the switch. I don't know how I'm going to drain the extra fluid out of the lockers outer housing but it will be a good adventure!
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