[J and M Machine]

"Quote" we have a local "Vintage Engine Expert" that has recently done an A engine that failed soon after ,,he said its a big job to do because he has to "hand scrape" all the bearings to fit,,??,,,by the looks of the beautifull pics above of the J and M babbitt job its a machine finish

Roddyb34 yes it is a machine finish.
There is no need to hand scrape if you have good machinery clearly something is wrong with the vintage expert.

We recently sent an engine to OZ if you'd like to email me i can give you his contact info.


Also the Aluminum bearing shells "reasonably priced" I highly question that.

Aluminum is not a good bearing material for a splash system.

However in heavy diesels Aluminum has been used "plated to a steel shell" for many years. These engines have full pressure oiling and the crankshafts are also hardened.

In another post someone asked about bronze bearings in Model A well the preferred material on a splash system is babbitt.