Does this look right?
 

We are putting a friend's engine together and I'm not sure this hole is supposed to be between the valve gallery and the timing gear .

Re: Does this look right?
 

The hole is suppose to be there.

Bob

Re: Does this look right?
 

The hole is for oil in the valve gallery (from the oil pump) to flow to the timing gear area.
Rusty Nelson

Re: Does this look right?
 

I know it looks like it was just banged out and it was at the factory.

Re: Does this look right?
 

The blocks were cast very thin in that area so it could be opened with a hammer, saving a separate machining operation.

Re: Does this look right?
 

Thank you very much. The problem was that neither of us had ever noticed it before.

Re: Does this look right?
 

I was concerned on mine about that opening being lower than the first baffle. I looked at my spare blocks, and they're all the same. It seemed to me all the oil pumped into that front chamber would want to pour out the front instead of going over the baffle to the rear. I suppose the cam gear slings a lot of it right back in as mist.

Re: Does this look right?
 

Yes, Stew, it is supposed to be there. It is a rough hole used for oil overflow to the timing gear area.