Author Topic: Mag lock  (Read 378 times)

Offline Devlin

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Mag lock
« on: 27.05. 2023 15:13 »
HAs anyone ever came up with a way to lock the mag to prevent it turning when settiing points and fitting the AR unit,
Dev
Isle of Arran 49 A7 LS

Online Billybream

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Re: Mag lock
« Reply #1 on: 27.05. 2023 15:39 »
Using a spare earth brush holder you could replace carbon brush with nylon plug to hold armature shaft, not my idea, but copied and it works a treat
1960 Super Rocket, owned since 1966, back on the road 2012 after being laid up for 29yrs.

Offline Angus

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Re: Mag lock
« Reply #2 on: 27.05. 2023 16:09 »
I did much the same used a piece of soft dowel.
1961 A7 since 1976, 1960 A10 Gold Flash Super Profile Bike
1958 Matchless G80 Project, 1952 Norton Model 7 Plunger
1950 Triumph T100, 1981 Ducati Pantah 500, 1959 AJS model 20

Offline Black Sheep

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Re: Mag lock
« Reply #3 on: 28.05. 2023 07:14 »
For setting timing, I hold the points centre bolt with a 2ba socket on an extension. 
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Offline BSA_54A10

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Re: Mag lock
« Reply #4 on: 28.05. 2023 12:09 »
I lock the engine with a piston stop
Then tap ( note tap not smash ) the pinion with a dead blow hammer / mallet
And it has to be a dead blow so that is either leather faced or lead , nothing else yields a true dead blow
This will lock the tapper and allow the pinion to the tightened with out moving

If you do not have one a chep & easy dead blow lead hammer can be made from a welders hammer
Cut the side out of a baked beans can enough to get the hammer in then heat the can while tossing lead into it .
When it is full up to the cut out allow to cool then cut away the can. 
Bike Beesa
Trevor