Tappet Chest cover

Post by **Onne** » Tue Nov 11, 2008 11:02 pm

Hello all,

Found (another) oil leak, which may be at the heart of the biggest oil leak on the car.

It is seeping past the bolt that holds the tappet chest cover in.

What parts should be present and correct to stop this?

I'm thinking washers etc.

Post by **Dominic** » Tue Nov 11, 2008 11:08 pm

Onne
There should be a cup washer, in which is fitted a thick rubber washer, which makes the seal when tightened. Note that the bolt only needs to be tightened to about 6lb ft torque if I remember rightly.
Dom

Post by **Onne** » Tue Nov 11, 2008 11:22 pm

That's what I'm missing then, I only have a bolt...

I'd better make a wanted ad then!

Post by **Dominic** » Tue Nov 11, 2008 11:48 pm

I think that ESM, Bullmotif etc list them - only a few pence each.

Post by **mike.perry** » Wed Nov 12, 2008 10:03 am

The early engines had a fibre washer if I remember correctly. A rubber seal wil be an improvement on that.

Post by **les** » Wed Nov 12, 2008 8:16 pm

If you get an ordinary rubber grommet with a 1/4-5/16 hole in it, and cut this in half, you will have 2 rubber washers with holes in that should fit reasonably into the cupped washer.

Post by **bmcecosse** » Wed Nov 12, 2008 8:37 pm

Or just use a fibre washer under a steel washer - but the later rubber/cup was a very definite improvement.
Edit - You get a whole box of really useful rubber and fibre washers and O rings of many sizes in Poundland - for a Pound!