[TR] tri metal bearings

Randall tr3driver at ca.rr.com
Fri Sep 28 17:57:06 MDT 2007


> This reminds me of another question around bearings:  was it 
> 20K miles or 50K miles that it is recommended to change the 
> rod bearings after a rebuild, using of course the original 
> size you used for the rebuild?

ISTR Mr Maclay (Haynes manual) recommended every 30k miles.  Don't think the
factory mentioned this at all.

>  (I suppose that it would make 
> best sense to ensure you use the same brand too, in order to 
> accommodate any very minor differentiations between them?)

Shouldn't be necessary ... the crank is not matched to the diameter of the
bearings.

> Main bearings aren't touched, right?

No mention of that by Mr. Maclay.  However, they aren't hard to do at the
same time.

Randall


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