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Tappet Chest cover
Posted: Tue Nov 11, 2008 11:02 pm
by Onne
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.
Posted: Tue Nov 11, 2008 11:08 pm
by Dominic
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
Posted: Tue Nov 11, 2008 11:22 pm
by Onne
That's what I'm missing then, I only have a bolt...
I'd better make a wanted ad then!
Posted: Tue Nov 11, 2008 11:48 pm
by Dominic
I think that ESM, Bullmotif etc list them - only a few pence each.
Posted: Wed Nov 12, 2008 10:03 am
by mike.perry
The early engines had a fibre washer if I remember correctly. A rubber seal wil be an improvement on that.
Posted: Wed Nov 12, 2008 8:16 pm
by les
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.
Posted: Wed Nov 12, 2008 8:37 pm
by bmcecosse
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!