On my 64 GT, I just went through the trouble to change the seal (at the front of the rear axle) where it was leaking. After installing the new seal, it is still leaking! I'm baffled, as the original seal did it's job for 55 years and the new one didn't last 24 hours. What could I have done wrong as it is a straight forward as replacing a transmission front or rear seal.
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pinion yoke seal still leaks!
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Originally posted by jrlemke View PostIs the pinion yoke scored?-JimGary L.
Wappinger, NY
SDC member since 1968
Studebaker enthusiast much longer
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As Gary said, the Pinion Bearing COULD be badly worn causing the Leak.
Also with the Newer design grease seal not resembling the Original, it is easy to get it backwards.
And they now come with a "sealer" coating on the outside edge to "better" seal, but have no Gasket to put behind them as original.Last edited by StudeRich; 11-10-2019, 10:24 PM.StudeRich
Second Generation Stude Driver,
Proud '54 Starliner Owner
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How far have you driven it with the new seal? Did you use 240-320 sandpaper to break the glaze on the yoke's seal surface? Lay the paper flat in your hand and grip the yoke so the paper wraps nearly all the way around the shaft; rotate the yoke round and round till the surface looks like a brand new yoke, right off the shelf. The renewed surface helps scrub the new seal in, but it needs to be driven a few miles to do so.
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Ditto every thing they said. If the bearing is bad the seal will leak. It is real easy to damage a seal when installing it. Most people do not have seal installers and end up using hammers and drifts which can distort the seal. In a pinch you can use a short piece of iron pipe which you can get for $3-4 at a hardware store. Most of you are aware that it isn't exactly unususal to find a defective replacement part (I seem to be running about 50/50)
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Sometimes oil can also seep between the yoke and pinion splines. I usually put a sealer on them.Bez Auto Alchemy
573-318-8948
http://bezautoalchemy.com
"Don't believe every internet quote" Abe Lincoln
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Hi jostanton1,
"Treatment Without Diagnosis Is Malpractice. "
I try to pay careful attention at each step of the disassembly process when repairing stuff. Plus Taking pictures, making notes etc,
First to augment my memory to put it back together, but also to try to assess what REALLY was wrong.
"On the way in" You may be able to identify what is leaking, and where.
Examples -
Any detectable pinion radial play, splines, seal OD, seal ID and yoke counterfaces, yoke grooving wear after polishing, etc.
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(opinion)
Just changing a leaking seal without checking the bearings is like playing Russian roulette.
You might get away with it, but you might not.
There are a thousand 4wd shops around the country that repair, rebuild, service, and swap Dana 44's.
They could have you in and out in a couple of hours, and you'd have a warranty.
HTIH (Hope The Info Helps)
Jeff
Get your facts first, and then you can distort them as much as you please. Mark Twain
Note: SDC# 070190 (and earlier...)
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