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| | | | Joined: Jun 2003 Posts: 27 New Guy | | New Guy Joined: Jun 2003 Posts: 27 | Have a 6v. 1954 Chevy Coupe, 235. I would appreciate your help. When idling the amp meter reads charge/discharge appropriately. When I accelerate RPM the needle begins to wave wildly and I suspect that the system is not charging properly. Seems like I read about this somewhere but I can't find it anywhere now that I'm the one with the problem!
PS - for all of you who helped so much last year when I had carb problems, thanks again. Car has been running beautifully since even gets pretty darn good gas milage.
Last edited by revted47; 05/18/2008 7:58 PM.
| | | | | Joined: Jul 2004 Posts: 5,708 'Bolter | | 'Bolter Joined: Jul 2004 Posts: 5,708 | revted47,
My unprofessional first guess would be the voltage regulator is on the fritz. The second guess, and a little less likely would be the generator...the brushes could be worn down and bouncing or the commutator could be funky with carbon.
I would have my assistant start and rev the engine to duplicate the problems while I held a hose or some type of listening device on the voltage regulator cover. If this is the problem, you might hear 'ticking' that coincides with the jumping ammeter.
Stuart | | | | | Joined: Dec 2007 Posts: 1,403 'Bolter | | 'Bolter Joined: Dec 2007 Posts: 1,403 | That's what I would say too, but I'm even more uneducated. | | | | | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | It depends how wild is wildly. My amp meter doesn't have any damping for some reason and it oscillates quite a bit with any stimulus. For example, with the engine off, turning on the ignition is good for a couple of gyrations. Now if the gyrations are say larger than quarter scale and the average position is not where you want it to be, then there is a problem. The regulator constantly switches the generator field in and out and thus supplies a lot of fluctuations in current. | | | | | Joined: Aug 2005 Posts: 6,377 Ex Hall Monitor | | Ex Hall Monitor Joined: Aug 2005 Posts: 6,377 | It's pretty easy to check & clean the points on your voltage regulator. Try that first & see if it smooths out your ammeter.
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| | | | | Joined: Jul 2006 Posts: 327 Wrench Fetcher | | Wrench Fetcher Joined: Jul 2006 Posts: 327 | I had the same problem it ended up being the V-regulator... which are still available... Peter | | | | | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | I didn't go into that but my voltage points were causing wild fluctuations at one point and I took it apart and filed bothe the current and voltage points. That solved that problem. I left a post about the adjustment phase of the job. | | |
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