Very helpful thank you Zedhead.  There are a couple that are 48 and 49 mm OD.  

Timken 714436 specs below.  48mm housing bore, 35mm shaft, 8mm thick. Perfect.  Just have to make a 50.05 OD/48 ID ring to schlipp in there. 

I had this thought during the night (when my brain seems to do the best thinking) that i had previously tried a heat repair on another one of these and melted the surprisingly soft guide bushing just inside the housing. I think i shall not try that approach again..

So that leaves me some sort of sleeve repair and a smaller seal I think. Other than filling in that void with some other material like epoxy or UV cure Resin, and maybe an external band clamp aka hose clamp to retain it all. 

Looks like I got here late and the good ideas are already taken!

That idea of a spacer ring inside the tail housing sounds like a great way to mitigate the damage. It looks like there is enough of the original circumference to locate the spacer ring, Some epoxy or sleeve retainer loctite to hold it in place, and you're good to go.

Do you have a lathe to make the spacer ring? I don't remember who has one and who doesn't anymore.

5 hours ago, Captain Obvious said:

Looks like I got here late and the good ideas are already taken!

That idea of a spacer ring inside the tail housing sounds like a great way to mitigate the damage. It looks like there is enough of the original circumference to locate the spacer ring, Some epoxy or sleeve retainer loctite to hold it in place, and you're good to go.

Do you have a lathe to make the spacer ring? I don't remember who has one and who doesn't anymore.

yup....  have lathe will (not) travel.....

So, the repair is done. Made a filler spacer ring sleeve thingy, 50.1mm OD, 48 mm ID.  12.4mm high.

Used convenient and most importantly cheap 2” (50.8mm) OD exhaust pipe as source material. Plenty of wall thickness. It’s about 46mm ID. Had that laying around.

Bought the SKF equivalent seal to the Timkin quoted above.  

Warmed up the alloy housing a bit with the MAP torch. Tapped the sleeve home. Tad high, buzzed it flat to the housing.

Sealant used (Right Stuff) to seal the area where the missing alloy sits next to the new sleeve. Also placed between the sleeve alloy housing. 

Edited April 14, 2024Apr 14 by zKars

10 hours ago, zKars said:

So, the repair is done. Made a filler spacer ring sleeve thingy, 50.1mm OD, 48 mm ID.  12.4mm high.

Used convenient and most importantly cheap 2” (50.8mm) OD exhaust pipe as source material. Plenty of wall thickness. It’s about 46mm ID. Had that laying around.

Bought the SKF equivalent seal to the Timkin quoted above.  

Warmed up the alloy housing a bit with the MAP torch. Tapped the sleeve home. Tad high, buzzed it flat to the housing.

Sealant used (Right Stuff) to seal the area where the missing alloy sits next to the new sleeve. Also placed between the sleeve alloy housing. 

Nicely done.  We should all have milling machines and lathes in our workshops!

What he said. Nice work!