From: | Mutt | e-mail: | pigstye13-A-aol.com |
Subject: | RE: RE: RE: RE: RE: RE: RE: magneto | Date: | Mon Jul 31 20:12:42 2017 |
Response to: | 22181 |
only if ya got a AC battery ----- ORIGINAL MESSAGE FOLLOWS ----- "What else would ya like to know about the Bendix magneto?" Can it charge an accessory battery to keep the lights from dimming at stops? ----- ORIGINAL MESSAGE FOLLOWS ----- Your research on "highly unusual for a rotor to be the issue" is wrong. I have seen quite a few rotors that would not start or run a motor. Even if ya use the electric starter. What you need to find is called a magnometer or gaussmeter. I have one. A good rotor, that makes a good spark, measures 35 on my meter. 25 or less will not run a motor at all. 28 and it's hard to start What else would ya like to know about the Bendix magneto? ----- ORIGINAL MESSAGE FOLLOWS ----- Does any one have a way to measure the magnetic force required for the mag rotor? I have the rotor pulled and it will pick up maybe 1 pound of a metal object. Also I found a guy who is into antique tractors who may be able to re-energize the rotor as all of the old tractors used a magneto. He thought the rotor should be able to pick up 10 pounds. Should have some good answers to the mag issues when I am done. Thanks ----- ORIGINAL MESSAGE FOLLOWS ----- It's official. The lighting coil in place of the ignition coil will produce a weak intermittent spark at 1/8" (under specs). Trying the ignition coil again I get nothing. I am going to replace the ignition coil and re-magnetize the mag rotor when I find the guy. There is nothing left to replace so it has got to work. Thanks for the help. ----- ORIGINAL MESSAGE FOLLOWS ----- Thanks for the info. All my research says it is highly unusual for the magnet to be the issue. The coil is $90 so I hate to get it if it is not the cause. The bike also has a lighting coil which someone said is the same as the ignition coil even though the part numbers are different. Tomorrow I am going to try the lighting coil in place of the ignition coil and see if that works. One other thing I am looking into is that in rural Minnesota (where I live)there are a lot of antique tractors with magnetos. I have a line on a couple of local guys who could maybe do the re-magnetizing. I will know in a week as next weekend there is a huge antique tractor show in Hastings, Mn. where I live. Thanks for your input. I would still like to know your XLCH connection info. I will let you know how my trials are doing. Funny connection. I am restoring this bike because it is the same year and model as my first bike I got as a Christmas present when I was 14. My best buddy had a 1962 Harley Sprint. We had great times and I spent many hours on the Sprint. ----- ORIGINAL MESSAGE FOLLOWS ----- I dug through my old parts and found a NOS rotor - but it's a 29707-63R. The Hummers didn't use 297xx parts, so I think this fits a Sprint. No help. I would suspect the coil before the rotor. The coils in these mags were known to be the weak link. If I remember correctly, these magnetos were produced by Bendix-Scintilla, who made aircraft magnetos, but also sold flywheel mags for small equipment (snowblowers, rototillers, etc) during the 1950s and 1960s. I've contacted a company who re-magnetized my XLCH rotors. They're not familiar with Hummers, so they're going to do a little research and call me back. Dave ----- ORIGINAL MESSAGE FOLLOWS ----- 62 Scatt getting closer but still a few issues. Magneto does not appear to have sufficient magnetic force to create the required 6 volts. Checked the ignition coil and it passed but it could still be bad. Bike runs with a 6 volt battery bypassing the magneto entirely. Not having any luck so far finding a place to re-energize the magnet but I know it is done. After that if there is still an issue it could only be the ignition coil. I already replaced the spark coil, plug, plug wire and points. Any ideas where to send the magneto for testing and repair. I live in Minnesota but don't mind shipping it somewhere. |
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