1979 Pantera 2005 MB502, 1979 Borg Tranny and 1979 TRS Drive - failure
09-07-2012, 09:45 PM
#32
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I had this exact same problem years ago on my 24 Banana Boat.
The transom was made thicker than the industry standard 2.25" hence the yoke engagement was not enough and stripped out the input yoke (MercTrans)
I made a longer than stock yoke from a spare I had. -It had been that way for years just took a while to finally strip out.
Kurt
The transom was made thicker than the industry standard 2.25" hence the yoke engagement was not enough and stripped out the input yoke (MercTrans)
I made a longer than stock yoke from a spare I had. -It had been that way for years just took a while to finally strip out.
Kurt
09-07-2012, 10:31 PM
#33
Registered
Good luck with the fix.
09-07-2012, 11:00 PM
#35
Platinum Member
DO you love me ? Wait I forgot to tell you ! As long as you don't have a rear motor plate , I can't tell from the pic's ...Take your tranny to a metal fab shop and have them make a spacer for the front of it 3/8 thick and put it back together . You should have a good amount of tranny shaft still in your flex plate and it lasted ten years the old way so an extra 3/8 of shaft should be good for 20 more .. No redrilling mounts , No cutting exhaust and No more problem lol ! Extending the yoke is the easiest way , they also make a shaft bearing center thats longer then yours but based on the pic you posted with the dip stick in it , It doesn't look like your tranny as deep in your gimble as it needs to be . That would cause your tranny to move and seperate from the shaft as it did .
Last edited by OCCJoe; 09-08-2012 at 08:36 AM.
09-08-2012, 06:14 AM
#36
We made it at a buddies machine shop. I cut the end off the stripped yoke and cut the spline end off another yoke I had, we machined a step into the parts, pressed them together and welded them together, then machined the surface on a lathe. It was really no big deal, done in a couple hrs, Any decent machine shop should be able to handle it with ease.
If you don't have a good Merctrans female yoke, I'm sure someone here has one. -I recently saw a new one on Boston Craigslist.
Kurt
If you don't have a good Merctrans female yoke, I'm sure someone here has one. -I recently saw a new one on Boston Craigslist.
Kurt
09-10-2012, 10:01 AM
#37
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We made it at a buddies machine shop. I cut the end off the stripped yoke and cut the spline end off another yoke I had, we machined a step into the parts, pressed them together and welded them together, then machined the surface on a lathe. It was really no big deal, done in a couple hrs, Any decent machine shop should be able to handle it with ease.
If you don't have a good Merctrans female yoke, I'm sure someone here has one. -I recently saw a new one on Boston Craigslist.
Kurt
If you don't have a good Merctrans female yoke, I'm sure someone here has one. -I recently saw a new one on Boston Craigslist.
Kurt
