Home › Forum › Ask A Member › 7.5hp Cranks OMC (Edited Journal Clearances) › Re: 7.5hp Cranks OMC (Edited Journal Clearances)
Chris; I don’t know what age you are, but I have been wondering for awhile now about an idea on these bushing rods. I would appreciate any feedback from anyone on the idea. Worked on cars, but they have oil pressure bearings. Ford used a conn rod bearing that spun inside the rod and on the crank pin also up to about 1948 on the flathead motor. Had a mechanic tell me once that he would have starved to death if he had to make a living grinding those cranks. They never needed grinding since the wear was cut in half.Wonder if we could gain enough thickness for such a bearing from the rod and crank? Would it get enough lube to the bearing at high speed? Just trying to dream up a way to save these old cranks and rods!
I have put 6hp cranks in 5.5hp with needle bearings and that works great, but don’t have a motor that has a crank close enough to steal the parts for the 7.5hp that I have found.
Still thinking!
Dan in TN