Looking for source of 40mm connecting rod bearing

[ujonsson]

Hi,

I am trying to improve the life of a Connecting rod bearing in a compressor. The Bearing is a Aluminum Tin Copper bearing (79/20/1). The Crank shaft is a hardened nodular iron shaft. I have got the advice that the bearing alloy is not a good choice for an application with a nodular iron shaft where direction of rotation is random.

I am trying to find a source of a 40mm AlSnSi or a Tri-metal bearing that could fit. The bearing od is 43mm and the overall width is about 27mm. The conrod is 30 wide.

The only one I found by searching the web is a Toyota engine 4A-GE that has the right diameter and od but I don't know the width.

Any help is deeply appreciated.

Ulf

 

[DanT]

Is the lube pressure fed thru the crank via the main bearings? If pressure fed, there are right and wrong locations to introduce oil for a particular crank rotation, and allowing alternate rotations is not helping matters any. A groove in the final destination bearing is pretty bad too, reducing capacity by much more than the lost area. Maybe left over from a splash design, or a borrowed part ?

The thread about crank polishing had several links.

 

[ujonsson]

I will look for that link, thanks!!

 

[JayMaechtlen]

I searched for that thread, couldn't find it.
Can someone post that link, please?


Jay Maechtlen