Author Topic: Triumph white metal bearings  (Read 3365 times)

Offline tractorman

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Triumph white metal bearings
« on: September 20, 2010, 09:12:00 AM »
Hi, can anybody tell me when Triumph changed from white metal to shell big end bearings on the 500cc engines. is there any external marking on the engine to show the change, is there an engine number noted when the change took place ?

Offline Rex

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Re: Triumph white metal bearings
« Reply #1 on: September 20, 2010, 09:18:17 AM »
1956 (Aug 55)  and engine number 70930, but I bet there's engines after that still with white metal bearings.

Offline tractorman

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Re: Triumph white metal bearings
« Reply #2 on: September 21, 2010, 08:26:46 PM »
thanks Rex. Good guide reference, but I'll be beware

Bernard

Offline rogerwilko

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Re: Triumph white metal bearings
« Reply #3 on: September 22, 2010, 12:48:57 AM »
I'm sure most of these have been converted to shells by now?