I am attempting to assemble a 1919 motor which I recently purchased. It was "rebuilt" about 20 years ago but was never re-assembled. The fourth mail ball cap has no hole. Should it have one?
Thank you, Gordon.
Yep,on top of bearing to assist in oiling. Drill about a 1/4 inch hole in the place where you can see babbit from the outside.
Jack. Can you show a picture? The ones I have, have a groove length-wise along the bearing, through the babbit to the center, with a slight drill hole just through the babbit itself at the center. They in no way look like the ones on the rod caps. Meaning they are not x-grooved. just single groove without hole going all the way through.
That sounds correct. The hole went to the top to feed oil into that groove.
Heres a couple of pictures,,
Richard- can pls advise min-max clearance between the housing and the shaft o/d?
You don't need to drill the hole. The amount of oil that leaks into the 4th main is sufficient. Read this: