A 1946 John Deere B came to me partially refurbished.
A Previous mechanic (who is unknown to me, as this tractor has been thru two previous owners) had used 1/4" OD copper tubing from the oil pump thru block and head, which terminated with a compression nut where it connected to the tappet oil supply. My question concerns the transition from the block into the head. What was the factory original connection? It would appear that the two faces should over lap the holes so the oil would pass thru. However the oil passage thru the block sits lower with not enough surface to make a flush seal.(and this is same passage is used for the oil return) Block casting # B1305R, Head Casting # B2501R. Any ideas as to how I should remedy this, so the oil flows correctly to the front of the head. The earlier mechanic's method will result in major tube Kinking at the head block transition.
Thank you for your time