[Healeys] where does the oil leak begin if the crank seal and the new seal are not the cause

[m.g.sharp at sympatico.ca]

Mike,

 

Just for clarity, when you talk about the “Moss rear gasket … is a Payen kit”  I think you are referring to the bottom-end gasket set, not the oil seal conversion kit – right?  I guess what I am asking in too many words is whether the rear engine plate gasket you illustrated in the phots comes with the oil conversion kit – I didn’t think so.

 

That may not resolve Bob’s question about how oil is getting into his bell housing, but I was trying to make the point that they are two separate things – the conversion kit and the rear plate gasket.

 

From: Healeys <healeys-bounces at autox.team.net> On Behalf Of Michael Salter
Sent: April 28, 2021 2:05 PM
To: Robert Begani <rfbegani at gmail.com>
Cc: Austin Healey list <healeys at autox.team.net>
Subject: Re: [Healeys] where does the oil leak begin if the crank seal and the new seal are not the cause

 

The Moss rear gasket, which based upon the packaging is a Payen kit, seems to fulfil the requirement of sealing around the back end of the cam.



I can't believe that John actually entirely missed installing the back plate gasket so I don't really understand the issue.

 

M

 

 

 

On Wed, Apr 28, 2021 at 12:27 PM <rfbegani at gmail.com <mailto:rfbegani at gmail.com> > wrote:

Listeners:

 

It has been explained by some members of this group that the rear Mounting Plate Gasket in the Moss kit is not sufficient to contain the oil back of the camshaft drain.  Now I am not knowledgeable on the conditions of the rear mount plate and the gasket, However, John Rowe after 10 years of living with oil leaks even with the modified seal installed, removed the trans, flywheel, mounting plate etc, and found it dry.  Let us review what he did find.

 

 

I fitted the modified seal 10 years ago and have always had an oil leak since. After finally removing the gearbox for repair last month I removed flywheel etc to have a look at it. I removed the backing plate and no leaks were identified around the seal, it was totally dry. However, the back of the camshaft drain was a different scenario. I then noticed there should have been a gasket according to the books, which mine did not have. I had used a silicone gasket maker in that area and that failed (didn't work). I made a thick 1.6mm (1/16inch) gasket and now think I have solved the leaks problem

Bob, The gasket I made only had a 'cutout' for the crankshaft itself. The remainder covered the back of the camshaft opening, which runs down to drain back into the block. It looks like an inverted teardrop.

 It covers the whole machined area of the rear of the block. I put permatex sealant all over the flat machined area especially around the camshaft opening. This was done with the engine in- situ while the gearbox was removed, quite easy but heavy.

 

 

What say you to those who are familiar with the rear of the engine, the rear plate, and the overall rear mounting plate gasket.  Is there are missing gasket in the Moss Kit? Was there ever a gasket for the area? Should the rear plate gasket be redesigned to include more coverage?  Should we just forget about the Moss gasket and construct gasket as John had done to solve the oil leaks forever.

 

The reason I ask this of the Group, I will next fall have to remove the trans etc. to install a new clutch plate and want to be prepared to do something to stop the leaking of oil even thought the installation of PVC system has greatly reduced the volume.

.

Comments?

 

Bob Begani

 

 

 

 

 

 

                                                                                                                    

_______________________________________________
Support Team.Net http://www.team.net/donate.html
Suggested annual donation  $12.75

Archive: http://www.team.net/pipermail/healeys http://autox.team.net/archive

Healeys at autox.team.net <mailto:Healeys at autox.team.net> 
http://autox.team.net/mailman/listinfo/healeys

Unsubscribe/Manage: http://autox.team.net/mailman/options/healeys/michaelsalter@gmail.com

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://autox.team.net/pipermail/healeys/attachments/20210428/27956123/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.png
Type: image/png
Size: 1803062 bytes
Desc: not available
URL: <http://autox.team.net/pipermail/healeys/attachments/20210428/27956123/attachment.png>