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Commando

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A technical forum for Commandos

Fork questions

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I've just dismantled my forks on my 1972 Commando as they were ratting a bit.  1. The collar seems different from what I see available - my one has a rubber seal and o-ring inserted into it. The o-ring came out but I couldn't get the seal out. Is this seal redundant given the one below it? See pictures. 2. There were bits of a previous rubber seal at the foot of each fork slider and a different size washer inside each - one had a large fibre washer, the other a smaller metal washer. It looks like there was a rubber seal under or over the washers.

Tightening the gearbox sprocket

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My rebuilt gearbox, newly installed in the bike, spins reassuring freely. However, as soon as I tighten the nut on the gearbox sprocket, even hand tight, the sleeve gear turns noticeably less freely.

I have a theory that would render this phenomenon innocuous but would like to guard against wishful thinking.

To avoid prejudicing discussion I won't say now what my theory is, but would welcome any explanations offered.

Rear Hub Rebuild - Help Required!

Forums
Good evening all. I hope a member or members can help me out with something I've been tearing my hair out with. I've been the owner of a Norvil Commando in MK11A spec for a few years which was acquired on Ebay. It was built in 2006 and the previous first owner had only done 250 miles. It's used by me on high days and holidays, only showing around 4000 on the clock now.  I took it out last week and unfortunately suffered a rear wheel blow out.

Upright

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Building a engine for a Norton wasp and the engine will be upright it's a 750 Judy wondering if I need to do any oil mods to the crankcases and if yes what thanks in advance rot any assistance 

Electrickery for Mk 2a

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Anno Domini being what it is i"m thinking about bolting on an   electric foot. Is there a consensus    as to which to go with ? Norvil is the new kid on the block, but maybe the others have been "Improved" through time?    Price,Quality, Reliability that sort of thing.  thanks.

Rocker Spindles and oilway holes?

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I am reassembling the cylinder head on my 1972 Commando and I notice that if the slots on the rocker spindles are lined up to fit the retaining plate, the oilways are blocked. Conversely, if I line up the slots to clear the oilways the retaining plate no longer locates properly. I suppose the oilways are supposed to be blocked as the bike ran with the retaining plates located for at least 50,000 miles, but I'd appreciate a sanity check please.  

Globules! from oil tank

Forums
Hi all just done oil change on my rebuilt engine& noticed oil globules seem to be coming out a lot faster than the oil! I thought they might have been water based but they don't look like it, I wonder if it could be graphite from the Graphogen build paste that I used?  I also used a new cam break in oil that came with the cam, perhaps that's mixed with the graphogen? As always, TIA for your comments. paul

Rear Wheel spindle possible binding.

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Hello I am in the process of adjusting the rear chain, and I have noticed something about the rear wheel through a process of elimination,  so with the rear brake fully slackened off, and the drive side wheel nut just finger tight and the timing side spindle/nut also finger tight the wheel spins nice, as I start to tighten just the timing side spindle nut the wheel perceptively starts to tighten up. As a comparison, If I spin the wheel with everything slackened off I get about three revolutions but with just the rear spindled tightened up I get one revolution. I have tried every combination

new premiers adjustment

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On setting tick over, the throttle slide screws wind all the way out and yet it still idles - a change to the pilot screw doesn't have much effect as revs are not low enough to make one screw effect the other, as per manual. Have finally swapped carbs but I will now take them off AGAIN and fit new carb intake insulators. The allen head screws (what a faff!?) were close to bottoming out so I wonder if this joint is not sealing but is it right that there is no sealant here? So much time has been spent cleaning the old carbs on the Interpol, and so nearly back on the road after 20?!

 


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