johnbuckley
Well-known member
Out of interest, does anyone know when insert bearings were first available for Model A engine rebuilds.
Hmm, maybe not what you are looking for,
But some of the bearings used are from 1943 models of cars/trucks.
Of course those are hard to find but several aftermarket suppliers have had custom runs made for them.
Maybe Brett can offer more of the timeline of when babbit work slowed down and inserts become more active.
John
Long before Rich (AER) brought true inserts in I was sending bearings to customers who were inserting bearings for years. They were just under the radar!
I was with Clevite for 26 years and so they were doing it at specialty shops all that time
Also at that time, the published focus of both national clubs was promoting the restoration of the 1928-1931 Ford Model-A as it was originally produced. Therefore you did not have social media or internet forums promoting inserts, nor the club magazine.
Yeah, there's an early mention in a 1961 Restorer issue – a guy wrote to the Wanted section asking if anyone had information on how to do insert bearing conversions. But all of the articles are strictly Babbitt-only. They don't even acknowledge that insert engines exist until decades later.
Back in the days, say pre-1990s, there were many people and businesses that knew the correct way to babbitt engines. It's a lost art with very few who have the knowledge to babbitt correctly. So to keep an engine running you have to revert to insert bearings. I'm still lucky enough to be running babbitt but who knows what the future will bring.
One other comment, IMO the technology and the passing of information is much more prevalent in this age for two reasons. First, this generation is much more willing to pass on information (-and pass on correct information) and the internet has provided a platform for sharing info.