Sorry, I know this is a double post. Meant to post it here but did it on the regular A4 page and now I can't delete it.

Hello,
I've just finished rebuilding my heads and I am getting ready to button it back up. I have been going through the gasket kit and I have a question about a couple of parts. I have tree O-rings in the kit but I can only find a home for one of them. I know one of them is for the coolant line to the head but the other two? The large ones are 1.5" and the smaller one is 1.125" (sorry, didn't have a metric ruler.) I'm thinking it might just be a connection that I didn't have to take apart to do this job. Any help would be appreciated.

 

I'm of no help as far as what those are for, but 1.5" ~=38mm, 1.125" ~=28.6mm if that helps anyone else.

 

The black one is for te coolant circulation tubes that come off the back of the heads. If you're looking from the back of the engine it's down between the two heads and it's te right pipe. Not too sure about the other two.