I was adding coolant and when it was almost full when a good stream of coolant started running out of a hole in the exhaust manifold that is directly below the heat valve adjustment. It's about 3/8 inch and I think I can see threads in it but it's pretty rusty in there.
This engine was completely rebuilt a few years ago and I am just now getting it running. The engine was painted and I can see some green paint inside the hole.
I'm assuming this is a hole to help drain the coolant. But I can't find any reference to it in either the service manual or parts manual I have.
This engine was completely rebuilt a few years ago and I am just now getting it running. The engine was painted and I can see some green paint inside the hole.
I'm assuming this is a hole to help drain the coolant. But I can't find any reference to it in either the service manual or parts manual I have.