Micro Welding of bearing shell to rod housing bore

CMcAllister · 08-24-2021, 12:50 AM

Strange.

So there is no indication of an oiling problem? i.e. crank to bearing face contact/damage?
Or bearing shell being hammered (detonation)?

Any indication of the caps moving on the rod (fretting on the cap/rod contact surface?

Fretting/welding indicates parts are moving under load. Initial thought would be to tighten (decrease) the bore size to the minimum to increase the crush.

All I got. Will be watching for responses.

08-24-2021, 12:50 AM	#19
CMcAllister Senior Member Join Date: Sep 2006 Location: Fulton County, PA Posts: 622 Likes: 17 Liked 929 Times in 263 Posts	Re: Micro Welding of bearing shell to rod housing bore Strange. So there is no indication of an oiling problem? i.e. crank to bearing face contact/damage? Or bearing shell being hammered (detonation)? Any indication of the caps moving on the rod (fretting on the cap/rod contact surface? Fretting/welding indicates parts are moving under load. Initial thought would be to tighten (decrease) the bore size to the minimum to increase the crush. All I got. Will be watching for responses.