Small Crack on bearing housing

[jiggsawjimduncan]

I was wondering if this would be ok since the bearing sits deeper and the chip is on the edge or should I replace it i really dont have much money to throw into this 372xp but everything else is fine

 

[singinwoodwackr]

View attachment 1220026
I was wondering if this would be ok since the bearing sits deeper and the chip is on the edge or should I replace it i really dont have much money to throw into this 372xp but everything else is fine

I would try to smooth out that chip with some 220 wet/dry and clean the seat out. Then, heat the bearing seat up to 300* and drop in a new bearing. Should be fine as long as the seal pocket is ok.

 

[jiggsawjimduncan]

I would try to smooth out that chip with some 220 wet/dry and clean the seat out. Then, heat the bearing seat up to 300* and drop in a new bearing. Should be fine as long as the seal pocket is ok.

Thanks if If I have any questions later would it be ok to ask you on here instead of making new threads?

 

[Mad Professor]

Are those marks from sanding or did the bearing race spin in the case? If the race is loose it will spin again.

 

[pioneerguy600]

Are those marks from sanding or did the bearing race spin in the case? If the race is loose it will spin again.

That is what it appears to be, the bearing may be a very loose fit now.

 

[singinwoodwackr]

Are those marks from sanding or did the bearing race spin in the case? If the race is loose it will spin again.

Good point

 

[alexcagle]

That pock is corrosion.
The spun bearing resulted from bearing hammering, or an out of balance pto....or (running an overly too tight chain over a long period of time). I have a process for fixing these, and them lasting for years.
Involves razor blades, green loctite, and a propane torch.

 

[J D]

It almost looks like something got melted in there

 

[jiggsawjimduncan]

Are those marks from sanding or did the bearing race spin in the case? If the race is loose it will spin again.

Happened pulling it out

 

[jiggsawjimduncan]

Happened pulling it out

It chipped off when I was getting it out I heated it up but it still chipped thr edge coming out it was far to tight to have spun in it I would think

 

[Tobystihl]

I don't think the bearing has spun, the pocket looks too clean. The marks look like what happens when a crank stuffer starts to fail and scrapes the casing ( not sure if this model has crank stuffers?)

 

[Bob Hedgecutter]

Is all that scuffing not in the crankcase proper- not the bearing pocket?
To my eyes the bearing pocket looks okay still- but the crankcase wall took one hell of a hammering.

 

[J D]

I think we need to see some more pic's

 

[Gord404]

I don't think the bearing has spun, the pocket looks too clean. The marks look like what happens when a crank stuffer starts to fail and scrapes the casing ( not sure if this model has crank stuffers?)

372,s don't have stuffers- probably a chunk of piston, bearing cage, ect or could have been put together from a previous buiid- wonder what the other half looks like

 

[holeycow]

https://www.mcmaster.com/products/bearing-retaining-adhesives/retaining-compounds~/

 

[jiggsawjimduncan]

I think we need to see some more pic's

 

[jiggsawjimduncan]

I think we need to see some more pic's

 

[jiggsawjimduncan]

372,s don't have stuffers- probably a chunk of piston, bearing cage, ect or could have been put together from a previous buiid- wonder what the other half looks like

 

[singinwoodwackr]

Well, the crank sure as hell wasn’t centered
The bearing seat looks fine. All that gouging is from the crank…got pics of that?
The little chip was most likely cause by the not centered crank and can be ground down easily

 

[J D]

That, or something like a chunk of bearing cage getting jammed up in there