Jump to content

Tranny leak


Recommended Posts

Over the winter it leaked out a large pool, dripping off the u-joint. Put in a new output seal last year and the outside of the shaft is dry.  Appears to be running through the shaft and out the u-joint.  There is what looks like a grease zerk down in the shaft??  Anyone familiar with this?

Resized_20200508_193351_8373[55].jpeg

Resized_20200508_193334_3794.jpeg

Resized_20200508_193458_9574.jpeg

  • Like 1
Link to comment
Share on other sites

So I did a little research and sounds like that is a weep hole in the yoke.  There  is an o-ring on the output shaft that rides in the smooth area of the yoke right before the splines.  Seems like the fluid level sits pretty high to come out that weep hole when just sitting.

  • Like 1
Link to comment
Share on other sites

So what happens when the car sits, any car with an automatic transmission, is the fluid in the torque converter drains back into the transmission. 

Fluid naturally seeks to be level. That's why when some cars sit, they tend to leak. 

The little hole is to relieve air pressure when the yoke goes in and out of the transmission tailshaft over bumps. Only transmission tailshaft a that have the o-ring inside should have this hole. 

I recommend replacing the o-ring with a new pliable one or replacing the yoke with one without a hole. Just remember if you do, to remove the o-ring completely. 

  • Like 2
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...