Military Vehicles, April 1997,: re: [MV] T-84 Transmission Leak
re: [MV] T-84 Transmission Leak
DOConnor@zoomit.sikorsky.com
25 APR 97 10:20:34 EDT
Jim,
We've found this to be a common problem in MB/GPW's we know. There has to
be a seal of some sort where the shaft exits the case, I just don't have the
manuals here to look at the diagrams. The culprit in may cases is just worn
seals which you can get at NAPA. Always use new seals not N.O.S. because the
"New Old Stock" is going to be the same age as the "Nasty Old Stuff" it's
replacing and won't do the job. We know this from hunting down all the proper
seals to do the trans and then redoing it with new NAPA parts when it leaked
worse than when it came out. The other problem common to these parts is the
shaft has a groove worn into it by the seal allowing it to seep out. Yes,
rubber can wear steel after years of friction on the same surface! (Commonly
found on the harmonic balancers of 350 Chevy's is another good example) The
fix is A:) New Shaft B:) Grind shaft down and install sleeve to return to
original size or C:) Weld the shaft and grind down to original size. Any good
machine shop that has experience turning cranks and cams can perform the
service and "C" is the easiest and probably the cheapest.
Good Luck,
Dennis O'Connor
Naugatuck, CT, USA
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