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A technical forum for all single cylinder Nortons

SR1 Magneto in a 1956 ES2

Forums

I have aquired a very good Lucas SR1 Magneto and was wondering if anyone had used one to replace the magdyno on an ES2?

How do you go about retarding the timing to start it?

Do you need any special sprockets or diferent timing cover?

How hard is it to fit an alternator as per the featherbed ES2s ?  Would I need a different cranckshaft?

Don Anson 

Australia

oil tank tap

Forums

Hello.

Could one of you kind people tell me where i can purchase a inline tap to stop my 350 norton from wet sumping.(the one that screws onto the oil tank)

I dont want one that has to be wired to the bike to prevent it from starting.

Thanks in advance.

Nick Kay.

Big 4 Petrol Tank Sealant - Petseal

Forums

I’ve tried to seal the petrol tank on my Norton with Petseal as it was rusty. It’s a two part epoxy type sealer, ethanol resistant.  Followed the instructions and kept it indoors and very warm for 2 weeks.  All looked really good with a hard and glassy type finish.  I reinstalled the tank and have had petrol back in for a week.  I was doing some work on the bike tonight and noticed some gunk on the petrol filler seal.  Putting my finger in the tank I can feel the sealer is very tacky and I can wipe it off with my finger.  Has anyone got any experience with this type of thing?

16H Valve Timing

Forums

I'm in the process of rebuilding my 1928 16H and noticed that the half time pinion (which has three keyways) has the letter 'H' stamped next to one of the keyways. I will be finally checking the valve timing with a degree plate, but was curious what this meant?

 

1937 16H Valve Timing

Forums

Hi,

How should I set up the valve timing for my 37 16H please? There are no stamps on the wheels but a previous owner has painted some red marks on, but I'm not sure of their relevance.

Any suggestions would be very welcome thanks,

Gary.

1954 ES2 Engine spitting back.

Forums

I recently bought this bike, it has original matching engine and frame numbers and original gearbox. It’s in lovely “patina” condition with little sign of mechanical abuse. The previous owner was an engineer and had just replaced the cylinder/crankcase gasket due to an oil leak, after which the bike was suffering from spitting back through the carb on tick-over. This seemed like a minor issue as, once off tick-over, it ran well so assumed it would be an ignition/magneto or carb issue.

Rebuilt M50 - what should compression be ?

Forums

Just rebored and fitted a +0.040" PJ1 piston on my '59 M50. I borrowed a compression tester and found it to be 80 psi. Doesn't sound a lot, but no idea what it should be. So far it's not been on the road  - maybe I can expect it to improve as I run it in ?

For interest I checked my '59 Dommi which has done 1000 miles since being rebuilt. Each cylinder recorded 90 psi. Used + 0.060" pistons purchased from Andover. Again, not sure what it should be but the bike seems to go pretty well and no evidence of oil usage.

Mike

 

 

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