Just changing my sump gasket and have just noticed that one of the new 'half moon' seals that I have are different to the ones that have come off the sump..

New ones on left and old on right:



Obviously the front seals are the same but the rear on the old one has the tab to sit up inside the block.
Are the new ones interchangeable front and rear or have they sent me two 'fronts' by mistake? What I'm getting at is do I need the one with tabs for the rear?

Why is nothing ever simple?
Cheers

 

Have a dig around mate you will find that there is a slot there for the extra bits to fit into, mine were filled with silicone so dug it out to fit them, I think some engine builders just cut them off because they can't be arsed to spend the time cleaning the recess.

 

Thanks for the reply mate.. I can see the recesses.. What I need to know is is it worth waiting for another one with tabs or will one of the black ones be ok?

 

Lol.. Just noticed that the rear one is about 10mm longer!
Looks like I'll be ordering some more then

 

I ordered up 3 pairs from Burton and Woodford and they were both different, I went with Ford and a small bead of loctite

 

Do the ford ones have the tabs mate?

 

They did yes but were still a few mm's short, so you still need a blob of sealant

 

Ok thanks mate, I've ordered some more. Sounds like it's gonna be fun