On the 340ih, I think the 7 year old 12 volt alternator went kapuutz worked flawless until now. I have double checked and cleaned all connections, checked battery 12.35v engine off, and 12.36 running. amp reads -draw
I have a idiot light wired in (diode) and it now stays bright red all The time with engine running at all rpm/s , usually when I rev engine to 800 rpm's the light will go out,,as alternator '' excites" and works as it should. Is there a way I can test the alternator,or should I bring it in for a bench test. any other things I can try,let me know. thanks guys,Jim
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12 volt alternator issue
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- 10+ Years
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- Joined: Tue Dec 18, 2007 8:18 pm
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- Tractors Owned: 1958 ih 340 utility
1950 farmall cub
1948 ford 8n
kubota 3240
IH 154 loboy - Location: Dassel, Minnesota
- Bigdog
- Team Cub Mentor
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Re: 12 volt alternator issue
Sounds like the alternator has failed. Remove it and have it bench tested if you want to confirm that. All the indications you have listed are of a non-functioning alternator. Probably the most common alternator failure is the internal diodes.
Bigdog
If you can't fix it with a hammer, you've got an electrical problem.
My wife says I don't listen to her. - - - - - - - - Or something like that!
http://www.cubtug.com
If you can't fix it with a hammer, you've got an electrical problem.
My wife says I don't listen to her. - - - - - - - - Or something like that!
http://www.cubtug.com
-
- 10+ Years
- Posts: 957
- Joined: Tue Dec 18, 2007 8:18 pm
- Zip Code: 55325
- Tractors Owned: 1958 ih 340 utility
1950 farmall cub
1948 ford 8n
kubota 3240
IH 154 loboy - Location: Dassel, Minnesota
Re: 12 volt alternator issue
Thanks BD. I will do just that.
-
- 10+ Years
- Posts: 957
- Joined: Tue Dec 18, 2007 8:18 pm
- Zip Code: 55325
- Tractors Owned: 1958 ih 340 utility
1950 farmall cub
1948 ford 8n
kubota 3240
IH 154 loboy - Location: Dassel, Minnesota
Re: 12 volt alternator issue
Went to local napa dealer, checked my alternator,it ested good, putting out 15 + amps, he cleaned the external connections for me, and sent me home, to double check wiring, clean all connections...they all looked good, I checked alternator mounts, and cleaned the surface of the mounts, to make good ground, installed alternaor and everything was fine again. Must have been a combination of dirty connections and bad ground ...who knows, it works, and all is fine ! thanks,Jim
- Bigdog
- Team Cub Mentor
- Posts: 24144
- Joined: Sun Feb 02, 2003 12:50 pm
- Zip Code: 43113
- Circle of Safety: Y
- Location: OH, Circleville
- Contact:
Re: 12 volt alternator issue
Sure beats buying a replacement!
Bigdog
If you can't fix it with a hammer, you've got an electrical problem.
My wife says I don't listen to her. - - - - - - - - Or something like that!
http://www.cubtug.com
If you can't fix it with a hammer, you've got an electrical problem.
My wife says I don't listen to her. - - - - - - - - Or something like that!
http://www.cubtug.com
-
- 10+ Years
- Posts: 957
- Joined: Tue Dec 18, 2007 8:18 pm
- Zip Code: 55325
- Tractors Owned: 1958 ih 340 utility
1950 farmall cub
1948 ford 8n
kubota 3240
IH 154 loboy - Location: Dassel, Minnesota
Re: 12 volt alternator issue
very true.
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