Thread: Insert bearings
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Old 07-06-2020, 08:02 AM   #67
Jack Shaft
Join Date: Dec 2019
Posts: 696
Default Re: Insert bearings

Standard insert bearings are of laminated construction, the babbit is applied to a base metal,usually copper or steel.With copper sometimes the copper is applied to steel,then the babbit is applied to copper.It appears the thin layer of babbit on your bearings is delaminating.

Leather belt? the story I was told was the tongue of a shoe,They also ran them on penny a quart 'drain' oil,Oil saved from regular customers cars service.
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