18-12-2020, 03:08 PM
Hi Oliver
Good to see a set of clear photos with a request!
As Reckless says looks like oil and the first thing to do is clean it up and check for any slop between the pistons and bores.
Do you know the history of the engine? Has it been rebuilt recently?
You put a recent thread on the forum regarding manifold sealing. I’ve been told that it is possible that a badly sealed manifold could contribute to carbon build up (although I’m not sure of the mechanism for this).
Good luck
Cheers
Howard
Good to see a set of clear photos with a request!
As Reckless says looks like oil and the first thing to do is clean it up and check for any slop between the pistons and bores.
Do you know the history of the engine? Has it been rebuilt recently?
You put a recent thread on the forum regarding manifold sealing. I’ve been told that it is possible that a badly sealed manifold could contribute to carbon build up (although I’m not sure of the mechanism for this).
Good luck
Cheers
Howard