Access to bevel support bolts

[froggie]

I have a small oil leak at the base of one of the rear bevel support.
Apparently one of the Allen bolts (see red arrow) is not sufficiently tightened.

Unfortunately, access to this bolt is nearly impossible without removing the rear cylinder.
Any trick to tighten this bolt without removing the engine or machining the lower fin(s) of the cylinder?

[BevHevSteve]

Can you cut an allen wrench short enough to get it in there to tighten up?

[froggie]

Thank you for your feedback, Steve.
This is what I thought would be my only option, the available space being however really tight even for a cut Allen wrench.
I will have to try that if the leak worsens.

I am surprised however that nobody seems to have ever raised this issue.
Strange that the factory didn't machine the cylinder fins in these specific places for that purpose (same issue for the rear bolt on the front cylinder). Seems that they thought a roundcase engine never should require bolts tightening or removing there