A short video on removal of a Norton Commando cylinder head, also valve seal issue that can occur. Always use genuine valve seals from a reputable source!!!!
Пікірлер: 60
@twotubefamily93233 жыл бұрын
Good to see your apprentice is keeping up with you Fiona !
@TornadoCAN993 жыл бұрын
Good work! I've actually done seal replacements on my '850 Commando without needing to remove the head. There is a write up on this method on the AccessNorton forum. It involves remove the rocker spindles (with heating of the head), replacing the spindles with a smaller diameter rod or bolt to give more freedom of rocker arms to move out of the way. Then you need to support the valve from dropping. There a home made tool for this but I use the old "rope" trick...stuffing some rope into the cylinder via sparkplug hole until the no more would jam inside...this is enough to hold the valve up. Then release the spring collets/keeper....I used a homemade tool of a bit of metal stock, bent into an upside down "U", secured into the rocker arm end with a nut and bolt, Winding it down so it presses on the valve spring cap to compress it. Have since tried an easier way....using a large socket fitting on the spring cap, stuff a small magnet into the socket...then a wallop or two with a big 1-3 lbs hammer to compress spring...collets release and are grabbed on magnet worked a treat. Once seal is replaced, to fit collets again, stuff paper towel or bit of sponge rubber foam into socket (no magnet) and position collets either side of valve. Wallop or two and the foam forces collets in to correct location. Remove the rope, button it all up.
@mvd944l3 жыл бұрын
Thanks, I was aware of this method but was wary of trying it. Might have a go in future 👍
@terryosmond364711 ай бұрын
Hey Gina just found your video on you tube, good job.
@briankent65402 жыл бұрын
Class plain and simple well done folks
@mvd944l2 жыл бұрын
Cheers
@andovernorton-thesource Жыл бұрын
Brilliant work 👍
@drjohn58013 жыл бұрын
Nice idea and a female conducting the work is excellent - but (Dad) get some practise of using a camera, with focusing and positioning to not have your hands and body in the way of what you are describing... but a great effort and you did get the point acrross, especailly the head seperation.
@mvd944l2 жыл бұрын
Thanks, BTW i am her husband!
@drjohn58012 жыл бұрын
@@mvd944l Ooops my sincere apologies 🥺
@stancoleshill89256 ай бұрын
Should come off nicely if you are using a copper head gasket.
@mvd944l6 ай бұрын
i never use copper gaskets, never managed a good seal with them no matter how much I prepare them.
@stephent11173 жыл бұрын
Fiona is the mutts nuts. Keep up the great work.
@simon2knine3 жыл бұрын
Back when i was young lad i can remember there were two police Norton commando at the bottom of the road..Me and my mates were looking at them and talking to the cops..I thought one day i will own a commando.. There was a guy who worked at local garage and he own a Z900...Same again i thought i would own one of these,, I have owned lots of bikes since then but not a commando or Z900......But never say never.
@mvd944l3 жыл бұрын
Funny it was seeing the local police on their Commandos that got me into them, had one since I was 17. Just restoring a z1000.now, funny old world
@rsbharley47663 жыл бұрын
Nice video, thanks for sharing. Cheers
@mvd944l3 жыл бұрын
Thank you! Cheers!
@squares443 жыл бұрын
Good to see you both! Great video!
@mvd944l3 жыл бұрын
Glad you enjoyed it! cheers Toon
@andyb.10263 жыл бұрын
Note, the design allows for regular removal of the Head. I ran Nortons for years, raced & won on them. 10k miles maximum between full Rebuilds. It's a cheap 1940's design , vibrates like a demon, bloody awful things 🤗
@mvd944l3 жыл бұрын
Ha ha that's why we love them 👍
@pdm22013 жыл бұрын
Ay.... They can try ones patience. However once everything is squared away ownership can be a rewarding experience. Few bikes are as much fun to ride and not many are better looking than a gloss black/gold trim Roadster.
@patrickmccarthy70683 жыл бұрын
Absolutely fab 🇬🇧
@mvd944l3 жыл бұрын
Cheers Paddy
@alistairmclauchlan70633 жыл бұрын
Good video Gino Alistair Pitlochry
@mvd944l3 жыл бұрын
Hi Ali, thanks
@nmoriss11 ай бұрын
Hi Gino - Love your vids! I have a 75 850 here in Tokyo. Shortly after my Mikuni manifold vibrated loose and then a 20 mile ride home - after tightening it up it went great for a few miles - then started going on the left cylinder only - finally I found the reason is there is zero compression on the right side. It's not a ring problem as when I poured oil in the cylinder it made no difference. In & out valves appear to be moving as they should when I crank it over. At the risk of sounding like an idiot.... can this only be a damaged valve or not seated right or a head gasket (doubtful I guess)? This is my first Norton - (I'm more use to working on Ducatis) so am not familiar with their many quirks! Any help appreciated!
@mvd944l11 ай бұрын
Hi, I'm touring Europe just now, I'll be home next week and try to help you, don't panic , nothing is too difficult
@nmoriss11 ай бұрын
Thanks Gino - Have a great and safe ride! - Niall.@@mvd944l
@mvd944l11 ай бұрын
Hi Niall, just home and read your comment again, I suspect you have a burnt valve? The manifold could have been leaking for a while? Only way to find out is get the head off and have a look, It's not a big job (But make sure you have the correct spanners and set of thinwall sockets in Whitworth) 1/4 whit for most and 3/8 whit for the rest (Depends on how standard it is)
@nmoriss10 ай бұрын
@@mvd944l Gino - mine is a 75 Mk3. What’s the magic trick for getting the 5/8 bolt in the back side under the carb manifold off. Spanner, one and ring dont work nit does a relatively short socket !
@mvd944l10 ай бұрын
@@nmoriss there is no trick, a spanner with a small offset should fit, not too much room but once you get it slack it should be easy. From memory it’s normally a 1/4 whitworth?
@georgemoskal20982 жыл бұрын
Well done Fiona but you're dungarees are too clean.
@2010N0rman19543 жыл бұрын
Any chance of doing a video of the valve clearance adjustment ?
@mvd944l3 жыл бұрын
If you think it would be useful? Is there no video on you tube of this?
@2010N0rman19543 жыл бұрын
@@mvd944l I can’t find one for a commando.
@rafaelpelizza78983 жыл бұрын
Buenisimo saludos de Argentina mardel plata. Rafael.
@mvd944l3 жыл бұрын
gracias, disfrutamos Argentina, estuvimos en una reunión de bicicletas vintage en Azul hace unos años
@rafaelpelizza78983 жыл бұрын
Mira que bueno una vez por semana voy a la ciudad de azul esta a 300 kilómetros de mardel plata
@mvd944l3 жыл бұрын
@@rafaelpelizza7898 Nos quedamos con "Pojo" como invitados, tiene una famosa casa de descanso para viajeros, luego fuimos a Tierra del Fuego y luego a Alaska. ¡Los videos están aquí!
@crozwayne3 жыл бұрын
Alloy cylinders? what capacity?
@mvd944l3 жыл бұрын
They were on the bike when I bought it, I believe they were from Fair Spares, through bolt like the 850 and so far pretty good 👍 (750)
@johnhatch2519 Жыл бұрын
Gino, have you ever heard of "focus"? The video is fine until Gino gets behind the camera and then it all goes wrong. Can't see what the valve spring compressor is doing. Can't see what Fiona is taking out with the magnet. And then the real hard bit, removing and installing new valve guides, you don't show that at all! Give it up, man.
@mvd944l Жыл бұрын
Thanks for your comments
@charliebrown46242 жыл бұрын
Taken one of these heads off many a time. They must have been the worst designed head ever.