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#84988 09/05/2002 5:17 PM | Joined: May 2001 Posts: 16 Member | | Member Joined: May 2001 Posts: 16 | After 5 years of sitting I just got my motor sounding really nice and smooth. Now I beleive my generator is not working. I first disconnected the battery and it died. Then I measured at the connections on the generator and it measured 1v. I thought it should have atleast measured 6v since the battery was still connected with engine on. Lastly, if I where to open this up and check for loose/dirty/corroded connections is it a Pandoras box, making it impossible to put back togethor? I was figuring on opening up one end and spraying some electrical connection cleaner inside.
55.1 3800
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#84989 09/05/2002 5:58 PM | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | First you should determine if the generator or regulator is at fault. I just went through this with mine. I suggest that you do the following:
1) Disconnect the armature and field wires on the generator.
2) Next put a jumper between the field terminal on the generator and ground.
3) Start the engine and take a voltage reading at the armature terminal. If the engine is running faster than idle, it should produce something well over 6 volts, probably more like 20 volts.
4) If you observed a good voltage reading then the regulator or the connections are at fault. If you still get 1 volt, then the generator is defective.
5) If the regulator is suspect, make sure it has a good body ground connection and also take the cover off and run some rough paper between the points. then try it again.
6) If the generator is suspect, you can take it apart, partially. There are two long bolts going from end to end that hold the assembly together and there is a thin steel band covering the area of the brushes. More than likely they are not making proper contact. Your idea of contact cleaner is a good one and may save you a lot of work. However, what ever you do, don't undo the large screw heads on the sides of the generator. These secure the field colis and you can run into trouble messing with them.
I used denatured alchohol and a nylon scrub pad to clean my comutator. It worked really well.
Also, the reason you did not see 6 volts at the generator terminal is that the cutout relay in the regulator keeps the generator disconnected from the battery until it is producing a healthy charging voltage. | | |
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