not charging 66 40hp rude

[skinny1965]

ok my old evinrude is not charging. I have a test meter and test lights to check out stuff but not all sure what I should be touching and what readings I should get

can I get some sort of guide from you great people on this board.

 

[skinny1965]

Re: not charging 66 40hp rude

how do I check for power coming from the generator
I have made it motor
just tring to determin what is fried

 

[Daviet]

Re: not charging 66 40hp rude

Hang in there, I am sure F_R will come along and ansewer your questions.

 

[F_R]

Re: not charging 66 40hp rude

It has to be running about 2000 rpm before it will charge. Are you doing that?

Check all connections in the junction box for corrosion, etc, especially the regulator ground wire

Check the 4 amp fuse AND the fuse holder. The fuse won't work if the fuse holder clips are corroded.

Make up a jumper wire with alligator clips on both ends. Use it to ground the generator field lead (the smaller of the 2 posts on the generator) Run motor 2000 RPM. Does it charge now? If it does, the generator is ok, trouble is in wiring or regulator.

Use jumper to momentarilly touch the armature post on the generator to the battery (+) terminal. Just touch it, don't leave it connected. That will polarize the generator. Run 2000 rpm, does it work now?

Those are the quick and easy tests. Check back if you haven't gotten it working yet.

 

[skinny1965]

Re: not charging 66 40hp rude

all of the connections are new
I have used a ohm meter to check from the ge to the reg to ensure no breaks
I have not grouned the feild yet ( if I get time will try this stuff tonight )
and I will do the power to the arm to polarize to

 

[skinny1965]

Re: not charging 66 40hp rude

ok just had time to run through the before metioned tests it would seem that maybe the generator is not working . when I ground the feild it doesn't charge.

what is comon to be wrong inside is it something I could service
I did have it motor before

 

[F_R]

Re: not charging 66 40hp rude

1. Remove the belt from the generator.

2. Make sure it is grounded to battery (-).

3. Ground the field with a jumper wire.

4. Use another jumper wire to connect battery (+) to generator armature post.

5. Generator should run like a motor. If it does, it is working. If it doesn't, take it apart and look for worn-out brushes, burnt armature, etc.

 

[skinny1965]

Re: not charging 66 40hp rude

I have done this when I use to work on VW's we refered to it as motoring
but i will try again maybe something is sticking

 

[skinny1965]

Re: not charging 66 40hp rude

ok because I was still having issues I went thru the motoring stage a second time and what I found is that some times when I try to feed the power back into it to make it spin it doesn't spin but if you just touch it or rotate it a bit it goes . is there anything to look at on the inside to solve this

 

[F_R]

Re: not charging 66 40hp rude

Worn out, filthy, or sticking brushes. Or an open segment in the armature/communtator. I'm betting on the brushes.

 

[skinny1965]

Re: not charging 66 40hp rude

Is there a lube or anything for the brushes to help them from sticking

 

[F_R]

Re: not charging 66 40hp rude

No. They should be clean and dry

 

[skinny1965]

Re: not charging 66 40hp rude

ok the generator will now generate (3 times apart) it now motors every time and if full fielded it will show charge so now I'm guessing the issues is the regulator is there anything that can be looked at or cleaned inside. I know this setup has sat for quite a while. I slid a piece of sand paper between the contacts inside it once before when I had the cover off but is there anything else I can do

 

[F_R]

Re: not charging 66 40hp rude

The contacts are the most likely cause of then no-charge, assuming everything else is ok. However, attempting to clean them is usually counter-productive.

Let me ask you this: Where are you grounding the field? At the generator or at the regulator? If grounding it at the generator makes it charge, but grounding it at the regulator doesn't, then there is a circuit fault between the generator and regulator. The 4 amp fuse, fuse holder, and push-on wire terminals are the biggest offenders. Also the ground wire from regulator base to junction box.

 

[skinny1965]

Re: not charging 66 40hp rude

I full feilded the gen right at the generator
a few days ago I ohm'd all the connections out but i will check them again

 

[F_R]

Re: not charging 66 40hp rude

Easy to test. Just ground the field at the regulator. If that makes it charge, you know the field circuit is good.

 

[skinny1965]

Re: not charging 66 40hp rude

do the regulators go bad very often

 

[F_R]

Re: not charging 66 40hp rude

Define "often". The motor is 44 years old. Is one in 44 years "often"? Or are we talking 3 in the last 5 years? Serioiusly, their greatest enemy is water and corrosion. When I was running ski boats, the junction box was continuingly getting sloshed with bilge water. They certainly didn't last long that way. I loved it when they got rid of the junction box and put the regulator under the hood.

 

[skinny1965]

Re: not charging 66 40hp rude

well I guess your right when you look at it that way
I have priced one from a shop close to me an 135.00 seems pricey going to look about a bit that is for sure

not that I'm sure mine is toast yet

 

[Daviet]

Re: not charging 66 40hp rude

Here's one, may have to wait a few days for it.http://www.marineengine.com/newparts/part_search.php?part_num=380250&x=11&y=4