Ammeter bounce-normal??
 

Running 10 amps at 30 mph (8 with the cowl lights on) ammeter bounce +/- 2 amps (about) Is this normal or can it run steady as a rock? Don't notice light flicker or any other electrical issue but wonder if something may be on the edge

Re: Ammeter bounce-normal??
 

That's pretty normal. When I restore the ammeter, or have it out and the cover off, I always lube the 2 pivot points with thick gear oil. It lubes and dampens the needle shake.

Re: Ammeter bounce-normal??
 

Tom,
Define thick gear oil? 600W?
Thanks,
Jon

Re: Ammeter bounce-normal??
 

I guess it depends on how much bounce. I have found that weak brush springs or an out of round commutator will cause the needle to bounce. Sometimes bounce can be caused by brushes not properly fitted to the commutator. In some cases I have reached in and held pressure on the brush while the engine is running and let the brushes wear in to the commutator, rather than disassembling the generator that somebody else has worked on. This practice can be dangerious if your finger gets caught up in the generator. I am always careful. Using a screwdriver to hold pressure on the brush can cost you an armature if it slips and cuts the wires where they enter the segments.

Re: Ammeter bounce-normal??
 

Yes, 600W if I have some handy. If not, then the heaviest oil at hand.

Re: Ammeter bounce-normal??
 

Hook up a modern analog meter to compare. Also 10 amps is a little steep if you do a lot of daytime driving. You can go as low as 3 amps if you are pretty much limited to daylight driving and you use your car all summer.

Re: Ammeter bounce-normal??
 

Guys-thanks for all the feedback-guess i will back it down a few amps as most of my driving is during the day;)