Jump to content

Rear Main


Kilgore47

Recommended Posts

One of the reasons for pulling the pan on the P15 today was to check the rear main seal.  When I would raise the front of the car oil would run out of the back of the engine.  With the pan off I could see a couple of places where the gasket did not seal in the corners close to the rear seal.  If the rear seal was bad wouldn't the fly wheel be covered in oil?  It is not.  And the clutch is dry.  These pictures were taken before I dropped the pan.  Guess I'll put it back together with a new pan gasket and see what happens.  Now that I know it's easy to drop the pan.  If I have to take it off again it won't be so grubby.  Everything will be clean.

 

I can fix that - I think

Fly Wheel.jpg

Rear Seal.jpg

  • Like 1
Link to comment
Share on other sites

If you have got this far...with the pan off, I'd drop the rear main & check the rear seal condition......also check whether the main cap actually has the little side seals, one on each side.....there are 2 different types, similar to each other but differing shapes.....I went to change the rear seal on the 41 Plymouth I had which "should" have had the rope seal.....nope, no rope........it had a neoprene seal but more importantly it had NO SIDE SEALS at all so when the main cap was bolted up there was the neoprene seal around the crank but there was err maybe a 50 thou cap between the cap & the block..........lol..........not much but enough to let a reasonable amount of oil to seep past..........installation of the side seals made a HUGE difference...still leaked a little which was the worn neoprene seal but nowhere like before.......my Oz 2 cents worth.............andyd   

Link to comment
Share on other sites

  • 1 month later...

I have driven the car a few miles now with the new pan gasket and that fixed the major oil leak.  Turns out the rear main is not leaking.  That's a good thing. 

 

There was a small puddle under the car after sitting for a couple of days.  Put the car up on the end lifts today and that leak is coming from the transmission.  Fixing the leaks in the transmission will be next.  It's not a big leak so it may be a while until I get around to that.  Cat litter works good for small leaks also. 

  • Like 1
Link to comment
Share on other sites

Good on you for finding the problem.

While I'm working on my truck I see no evidence of past rear main seal leaking ... Some drips but nothing major to be concerned about.

And the usual cork gasket leaks around the pan .... It was wet but just dripping not pouring.

Looking at the rear pinion seal .... that baby been leaking for a long time before it was parked ... needs attention.

 

 

I expect to pull the engine & replace all the seals, rings, bearings ... since the rear main is not leaking I'm in no hurry.

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...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.

Terms of Use