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Old 09-05-18, 03:18 PM   #1
darren
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Default lucas rs1 problem

hi i have a lucas rs1 magneto which i have just replaced the bearings points and condenser. it gives of a descent spark but its lyk the whole mag body is live because you get a shock when your spinning it by hand and touching the ht lead. should really do that but has anyone got any advice on what the problem could be. regards Darren
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Old 09-05-18, 03:21 PM   #2
Lister M
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If you have the body in your hand and you are touching the HT lead you will get a shock as the magneto body acts as one of the wires otherwise the magneto wouldnt work.

Martin P
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Old 09-05-18, 03:51 PM   #3
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thanks for the reply martin. it still does the same when it is mounted on the mag bracket or is that normal. regards darren
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Old 09-05-18, 05:21 PM   #4
Hornet 6
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You could try not touching the ht lead, they tend to give a shock

Neil.
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Old 09-05-18, 05:53 PM   #5
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i know iv learned that lol
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Old 09-05-18, 06:47 PM   #6
Hornet 6
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Quote:
Originally Posted by darren View Post
i know iv learned that lol
The body of the mag is the earth that the leads shorts to (sparks)
If you want to test it while holding the mag you need the HT lead to short to the magneto body without you touching the end of the lead, so hold it an inch or three away from the end and maintain an ⅛" gap for the spark to jump.

Neil.

PS: shocking yourself while testing is easy to do, makes you jump a bit but that's all, however touching the top of plug and the engine while it's running will give you a proper shock
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Last edited by Hornet 6; 09-05-18 at 06:50 PM.
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Old 10-05-18, 06:17 PM   #7
Crash Test Johnie
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When replacing the bearings did you fit new insulating shims as this could cause a problem.
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Old 10-05-18, 08:19 PM   #8
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no i never actually it did nt have any on. do these go on both ends
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Old 11-05-18, 02:56 PM   #9
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Isn't the RS1 a moving magnet job - no need for bearing insulating shims.

NHH
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Old 11-05-18, 06:56 PM   #10
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Quote:
Originally Posted by nickh View Post
Isn't the RS1 a moving magnet job - no need for bearing insulating shims.

NHH
The Lucas SR1 mags have the insulating shims Nick so I reckon the RS1's will have as well?

Pete.
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