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Got gearbox out yesterday after pulling 1/2 the bike to bits. Will try Petes suggestion of trying to rotate input & output shafts in all gears to determine if gearbox damaged

My drawing is probably a bit misleading as it was an attempt to portray classic "crabbing" of the frame. Last time my gearbox came out, the motor was supported, front end strapped tightly into the wheel chock, and light straps to support the upper frame from the pannier racks. I did not even have to remove the frame side plates . . .

There is some hi-tech info there. Cutting edge, 2003 . . .

Have you read these posts? CRABBING the spine frame - Technical Topics - Moto Guzzi V11LeMans.com Forum https://www.v11lemans.com/forums/topic/19887-green-attitude-gratitude/?do=findComment&comment=222401

Once you have this thing on the floor or bench. Make sure it's the box by turning both the input and output shafts, in all gears.

On a more serious note: I don't know for sure that this works with the "big block" Guzzis, but it is in the workshop manual for my "small block" V35 Imola. The constuction is similar enough that I reckon it should work. Undo all the bolts to the gearbox, and then pull the clutch in. On mine, the gearbox then pops off a bit, and you can pull it off without too much bother. Hope that helps. If it is still reluctant, hold a block of wood against the housing and persuade it a bit with a hammer against the wood block. Work your way around, and it should come off.

Don't drop it on your foot. I hope you find the problem quickly, and that it is not too dramatic.

Input shaft rotates freely in neutral & 1/4 turn when in gear. Output shaft only moves 3 teeth in any gear. Its differcult to change select gears above 2nd. Conclusion damage is in gearbox. Is it worth taking rear cover of g/b off to see if damage is in there?

Hi Audiomick, Yep, those are H-B's. I know it looks odd but if you think about it, they couldn't go lower otherwise they'd hit the mufflers or further aft because they would hang too far off the back. I don't know how comfy a passenger would be back there but my son in law has had it out with my daughter on the back and didn't register any complaints. I bought the bike in 2014 from a friend of mine who was the original owner. I made the mistake of riding it in 2007 and told my friend if he decides to sell it, let me know. Happy New Year! Art

Evangeline, Evangeline Curses the soul of the Mississippi Queen

You need a YouTube channel "How Docc Does It"

Thanks Doc for that. Didn't realise you needed to tilt motor. Nearly there. Got black frame tubing behind g/b to remove. Only problem so far is 2 of 3 screws holding grimca clutch m/c have seized. Will detach tubing instead

So, what kill't the Scura, blowing its Fuse 4?

It occurs to me that I need to clarify that. On the "small block" models, as with the old Tonti frame "big blocks", you need to remove the upper frame to get the gearbox out. That means that the clutch cable is no longer connected. To activate the clutch to pop the gearbox off, you need to push in the lever on the back of the gearbox that the clutch cable is connected to. I haven't had a look at the way the clutch works on the V11, but going by the parts lists, it looks like there is a rod through the gearbox that activates the clutch. In your situation, I'd be inclined to try and leave the clutch system connected until the gearbox is separated, so as to be able to use the clutch lever to push it off. You'll have to have a look at the business yourself to see if that is possible.

Pop it in a box and send it to us if it is the gearbox. It shouldn't cost a huge amount and we have all the necessary tools.

My bike features that exact tensioner (I put it in myself) but also features the 3k stumble. Sorry.