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 Oscillating ammeter needle
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jeremyshaw

United Kingdom
10 Posts

Posted - 23 Sep 2020 :  17:07:51  Show Profile  Reply with Quote
Just in case anyone has the same wildly swinging ammeter needle I had, here's what I found. Shorting C1 and C2 on the 6RA field isolating relay gave a steady needle and steady voltage too. It was a bad contact within the relay and no amount of cleaning or soldering joints would cure it. I've fitted a modern relay until a new Lucas 6RA can be sourced. Good luck!

bigt80

United Kingdom
1051 Posts

Posted - 04 Oct 2020 :  10:17:32  Show Profile  Reply with Quote
Good tip there. I have a s/h 6RA (4-pin?) somewhere, but it may have the same issues being of the same vintage...albeit it has not been on a car for 40 years!
If I can find it I will let you know. Cheers. G
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bigt80

United Kingdom
1051 Posts

Posted - 05 Oct 2020 :  11:20:48  Show Profile  Reply with Quote
Yes, found it; it looks to have 33310 Lucas No. on it. (Thought it was an early O/d one?) Can't vouch 100% that it is OK, but if you PM me can sort out a nominal cost for it. Cheers. G
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