True or false ?

[bgott]

There is a couple of reasons they used babbit as a bearing material. One is that it is softer than the crank. Another is embedability. Those old engines didn't run full flow oil filters, if they had one at all it was a bypass filter. That means the only oil it filtered was oil bypassing the pressure relief valve on it's way back to the sump. With no oil filtration you ended up with some good sized chunks of trash in the oil. With soft babbit bearings the junk would be pushed down into the bearing material rather than being held up where it could groove the crank.

 

[pruntyc]

Well Bird. it wasn't in W.Va. although I am from Ohio. But I worked for U.P. in Omaha, NE. in their shop. We extended some box cars to make them about 4 ft higher so they could haul more. And I hard surfaced the Bolsters for the wheel assembleys. Well, I should say I built them up first with mig, then gave them a hard surface with different wire. We also did what was called spray arced some of them, on a machine. There was only about 3 of us that could run it. There was a fellow there from Korea that I never saw anyone do a vertical up with a stick as easy as he did. I could run one pretty good, but with him, it was just looked as easy as a flat weld. To answer your question it was mig and stick, all in what was needed.