108 - counter shaft looks fine to my eyes.
If you want to avoid guessing if his welds leak - just coat them with threebond or a fairly flexible epoxy.
I can assure you I will do the same - no matter how pretty my welds are in the end.
And they may not be that pretty...
Welds are there for structure - sealing agents are there to seal.
No extra points for having to strip down cases because of a pin hole.
Realized when I looked this morning, that some moron back on page 20 had ground back the area that I just machined through.
What a dunce.
Left me with a razor thin material.
Tried welding today.
Moment I hit it with heat - edges just curled up.
Pretty well decided these cases are done.
At least 3 times.
This project has passed its sell by date - but I can't quite let it go.
The L shape pad has my interest peaked.
When I pulled the crank - I was kind of shocked by how big a 16mm wide inlet looked.
Just had to keep going.
So even tho I burned a finger sized hole in the cases - I kept at it.
At this point - its beyond patience and on to just plane stubbornness.
Cut a patch and tacked it in place.
Then flipped the cases and welded on to that from the other side.
Looks to be solid.
I will have to try and machine the surfaces now - to allow the primary to fit back in.
Ironically - the epoxy for the pad didn't give at all - and this cases were crazy hot from the welding.
welded a patch on, then machined it down.
This will have to be machined out
then sealed up the edge of the patch as well. Will coat all this in an epoxy - to ensure no pin holes. Needs to be machined back. Solid for a lifetime - if not elegant.