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Plastigage arrived. Rods look OK at just over nominal clearance (0.00165") but mains are over limit at 0.002".
Will ask for suggestions in other thread.

ha ha....all came apart nicely otherwise. I've enough unfamiliar bits disassembled without pulling the heads. Did think I had a front head oil leak but it was the mcct gasket had settled and bolts very loose. My mistake.

I have the honda manual downloaded... I just didn't get to grips with the ID marks immediately. It took a while for them to sink in. I'm used to 10 and 20 thou undersizes not 5 different std grades over only 6 tenths and different front to back. What happens on a crank regrind... Are shells availabl...

That is lovely.... Good colour too!

I see what you mean but any of those bolts can be torqued with a ring spanner and a spring balance. I wonder what Honda did? The outside bolt you talk about undoes ok but stays in place. Are you saying it won't release the bottom end because it fouls on the head?

Thanks for that. Did wonder if the play was normal, much like the same gear on Norton's. Have ordered the brgs anyway and the main shaft ones. Utterly confused by the shell bearings, grades and markings on brgs that don't match anything listed....except the colour is of course. I'm going with identi...

Sold my commando last year after 20 yrs and 50k miles. A lot more go than a Daytona 500 but you'll find it a nice little ride if you treat it for what it is, 34hp in a busy little package. (I've seen them specd at 41hp which is ambitious!) Saying that I started my Brit bike era on a 350 triumph with...

Ok that makes sense, can't say I've looked that close at others. For now wheel silver and lacquer will do. It was scabby. Appreciate your help. I've a couple more questions, on the gearbox found a duff main shaft brg as expected so the effort to strip was worth it....was beginning to wonder :? What ...

Mines upside down......sits well on the valve covers..

Finally got he flywheel off and split the cases. Missed the bolt above the clutch inside the case :? Pulled the gear clusters and confirmed the main shaft get is knackered....thought I was going mad when it felt ok. Cleaned in petrol and spun up it has masses of end play and a nasty little rough spo...

Cheers for that.
On a separate thing I noticed the sump was bare aluminum. I've seen pics of bikes where it matches the engine colour so I'm assuming mine was replaced at some point.... Would I be right? It would explain the badly fitted pickup strainer

Thanks Tony. It was yr comment a while back suggesting splitting cases without removing heads or chains. Looks like pics are beyond me, it's a big capital B in blue on lower inside edge of case under mainshaft. Tks anyway.... I'll do the brgs. Cheers.

Well just waiting on an iveco stud to pull the flywheel so I can release the tensioner from the bottom case. What are the chances this B in blue under the selector mech refers to both sets of brgs or just the mains? See pic. Still debating whether to pull the rod caps. All looks nice downstairs but ...

Finally separated the frame from the engine.... Not easy solo withe the rear mount bosses fouling nearly everywhere and a part seized front stud(rg part) :(. Now debating if its worth splitting the cases as the mainshaft brg feel good with clutch off. Still it was always worse hot and since I've got...

Amazingly the rear shock linkage came off real easy but the swing arm to knuckle needles had rusted out. All others were in good shape so looks like a PO had been there. Stuffed some more grease in there. Twiddled the clutch and the mainshaft brg feels OK... No nasty roughness like i was expecting. ...