Good luck Peter Holland. Log in to post comments. Long shot but They only deal with customers face to face or on the 'phone. Camshaft Thanks for the info. Put Lightweight Camshaft bushes on the spares request list? They are quite simple items. I know they rarely fail but when you need them, you need them! Camshaft bushes The part nubers are drive side for the timing side. I wi get put in a wish ist for the bushes. Source of bushes I tried Russell motors as suggested and they have all I want.
Good to know Good to know that you were successful. Active forum topics Why no overdrive 5 speed cluster.? Fitting damper tubes to long roadholders big 4 history search 69 Commando rebuilt clutch not working T dolls Head gearbox problems Commando fitting choke and throttle cables. Latest Classifieds more. VAT Reg No Norton Owners Club. Search Search. User account menu Log in. Camshafts and Bushes.
Steve Jowett www1. Norton Service Release Notes. Cam Part No. Active forum topics Why no overdrive 5 speed cluster.? Fitting damper tubes to long roadholders big 4 history search 69 Commando rebuilt clutch not working T dolls Head gearbox problems Commando fitting choke and throttle cables.
Latest Classifieds more. Service Release No. Worldwide for general distribution. February Camshaft interchangeability to be read in conjuction with Service Release N Camshaft, crankcase, cylinder head and valves. Fastback after Serial Number - Frame Number Roadster, Hi Rider and Interstate. Half fill the bush with engine oil, then enter the camshaft, it should stop when it meets the oil.
Then tap firmly the top end of the camshaft with a mallet and if you are lucky the bush will move upwards, pushed by the Hydraulic pressure that you are creating by driving the camshaft downwards..
If this happens it would be quite easy to find an old camshaft and fill the grooves with body filler or similar. Otherwise you will have to find a rod that that is the same size as the camshaft ends orget one made up and use this. My mental picture failed me here The Hydraulic methodwas worth mentioning though as there are plenty of blind bushes in many engines and the method could be a useful one to try. So Peter, It seems that my first suggestion Slide hammer would be the one I would try and the second hydraulic one, cannot be implemented in a practical way but not impossible with the driveside camshaft bush due to the breather hole.
Oh well! Thanks for your suggestions, I had heard of the hydraulic method of getting the bush out but hadn't thought of using the camshaft as the piston. The breather vent could have been blockedoff with a small disc.
I did try a method similar to your second suggestion but I tried to use a 20mm bolt with flutes filedinto itso it would act as a tap. I screwed anut to the top of the bolt thread and put a washer and steel tube over the lower part of the thread. Next I screwed the bolt in to the bush for a couple of turns so that it gripped quite firmly.
The idea was to screw the nut down the thread, pushing the tube down against the casing and then, hopefully, pull out the bush. The problem with my homemade extractor was the bolt wasn't long enough for the nut to be above the crankcase where I could get a decentspanner to it. I did manage to put some pulling force on the bush and stuck the crankcase in to the oven while the wife was out for 30 minutes at gas mark 6.
I ended up cutting two slots along the bush, very carefully, using a short length of hacksaw blade embedded in a slot atthe end of a piece of 15mmcopper pipe with just enough of the blade showing to cut through the bush but not in to the casing.
A piece of wood dowling with a longitudinal slot cut in to it was put in to the copper tube so that the slots were aligned, this retained the blade. Hi Peter. Necessity is the mother of invention they say and your extractor bolt method seems a good idea, pity your bolt was tooshort. You could have saved some effort if you had used and electric jig saw with a fine tooth metal cutting blade rather than a hacksaw.
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