Primary Case Needle Roller Bearing Removal

[Gerald]

I'm cleaning up a series one primary case from a Bosch Triple engine. The needle roller bearings need to be replaced.
I've tried to remove them with a blind hole bearing puller and some controlled heat around the seats. The bearings seem unimpressed so far and I've notice 3 long marks around the top of the bearing seats, as if securing punches were made. Before I screw up a good and rare primary case can I get some guidance to remove the bearings safely?

Ciao
Gerald

 

[Rufustbear]

I think a load of stuff on this was posted a few weeks ago,check back in the files   page four ? i think

 

[Grant]

The bearing should not be pressed all the way back into the casing so there should be room to get the pullet in behind it. The 3 punch marks should not impede this. Just re-whack them when the new bearing is installed.

If you have a puller and heat and it will not budge then something is not right. Maybe it was Loctited in place?

Try putting the whole thing in the freezer, then take it out when cold, install the puller and apply heat to the outside of the casing. That may just be enough to start it moving.

 

[Gerald]

I had a look at page "Four" as Rufus mentioned and I'll give the oven a shot when the misses is out :

Gerald

 

[Gerald]

Bearings are out, but I had to fry some eggs and bacon to cover up the 20W50 odor in the kitchen

Gerald

 

[Grant]

I use olive oil for cooking eggs, less smell than 20/50... 

 

[henry]

should've just burnt a slice of toast, that will mask practically anything, unless you were hungry, of course!