This site uses cookies to maintain login information on FarmallCub.Com. Click the X in the banner upper right corner to close this notice. For more information on our privacy policy, visit this link: Privacy Policy
NEW REGISTERED MEMBERS: Be sure to check your SPAM/JUNK folders for the activation email.
Alternator with a Mag
Forum rules
Notice: For sale and wanted posts are not allowed in this forum. Please use our free classifieds or one of our site sponsors for your tractor and parts needs.
Notice: For sale and wanted posts are not allowed in this forum. Please use our free classifieds or one of our site sponsors for your tractor and parts needs.
-
- Cub Star
- Posts: 57
- Joined: Tue Aug 06, 2019 12:45 pm
- Zip Code: 63348
- Tractors Owned: 1950 Cub
1957 Farmall 400
1973 Farmall IH544
Alternator with a Mag
My 50 basket case has a alternator and a mag. I am not anywhere near worrying about this this seriously since I have more than a few other items to address first. But as my mind wanders 'cause I'm frustrated with what I'm working on, I'm thinking what's the point? Need the battery to turn the starter and run lights but that's it. At this point lights don't exist so no draw there. Trying to figure out what others were thinking is impossible but makes you wonder. Another question is should the batter show over 12 if the alt is working while running, I think so but don't know for sure never have had an alt. with a mag. My mind goes everywhere quite often so I thought I'd ask folks that know more than I do. Thanks for any input. Dangit, just saw something shiny, here we go again..... xrcr
-
- 10+ Years
- Posts: 4117
- Joined: Thu Nov 09, 2006 11:26 pm
- Zip Code: 61722
Re: Alternator with a Mag
12-v alt from what they tell me is 13.6 to 14.5 volts. ---- none of my ammeters work, and I never tried to test them for output --- they always start so I assume they are working.
-
- 5+ Years
- Posts: 1140
- Joined: Thu Aug 25, 2016 1:29 pm
- Zip Code: 49343
- Tractors Owned: 48 Farmall Cub "Seen Yore Dobbin"
53 F-Cub W/Loader. - Circle of Safety: Y
- Location: Michigan
Re: Alternator with a Mag
Is the mag set up like a mag? Or was the mag coil bypassed?
Having a 12 volt hints the mag system has been modified.
Having a 12 volt hints the mag system has been modified.
-
- Cub Star
- Posts: 57
- Joined: Tue Aug 06, 2019 12:45 pm
- Zip Code: 63348
- Tractors Owned: 1950 Cub
1957 Farmall 400
1973 Farmall IH544
Re: Alternator with a Mag
Waif, The mag looks like it has not been touched externally with the exception of the what I think is the cut out wire. It is not connected but there is no off/run switch
-
- 5+ Years
- Posts: 2823
- Joined: Wed Jul 08, 2015 10:24 am
- Zip Code: 19342
- Tractors Owned: 1948 6v - Dozer
1949 with kub klipper belly mower. mag 6v - Mom
1950 with plow, 54 blade, mott mag 6v - Roxanne
1953 54 blade, c22, wood 42 6v
1957 6v - barn Queen
1965 lo-boy with c-3 mower 12 v - Loboy
1974 Horse II 12 v c-2
1975 with woods 42-6 12 v - Horse
1979 long strip 12 v stuck engine
130 with international 1000 loader 6 v
1969 140 with bush hog tow behind mower 12 v
Terramite T-6 4WD Backhoe Perkins diesel
Memberships: Rough and Tumble Engineers Historical Association;Chapter 8 IH Collectors; IH Collectors Worldwide - Circle of Safety: Y
- Location: Glen Mills PA
Re: Alternator with a Mag
this is my most used electrical meter for tractors and cars
It testes the battery and the charging system. $20-$40
You should be at 13-14+ on an alternator.
It testes the battery and the charging system. $20-$40
You should be at 13-14+ on an alternator.
When you only have 9 horsepower you need to know the names of all of the ponies!
-
- Cub Star
- Posts: 57
- Joined: Tue Aug 06, 2019 12:45 pm
- Zip Code: 63348
- Tractors Owned: 1950 Cub
1957 Farmall 400
1973 Farmall IH544
Re: Alternator with a Mag
inairam. I have that and it showed 12 when running so It would either be wired incorrectly or junk was my thinking
-
- Team Cub Mentor
- Posts: 20379
- Joined: Fri Jul 02, 2004 9:52 pm
- Zip Code: 65051
- Circle of Safety: Y
- Location: Mo. Linn
Re: Alternator with a Mag
Need to know which brand alternator and model number, how many wires attach to the back of the alternator. And does the alternator have an external/seperate voltage regulator.xrcr wrote:It showed 12 when running so It would either be wired incorrectly or junk was my thinking
Unless there is a simple wiring fix to the alternator, it's less expensive to replace with a single wire 12 volt alternator.
I have an excuse. CRS.
-
- Cub Star
- Posts: 57
- Joined: Tue Aug 06, 2019 12:45 pm
- Zip Code: 63348
- Tractors Owned: 1950 Cub
1957 Farmall 400
1973 Farmall IH544
Re: Alternator with a Mag
Eugene it is a delco can't find a model number. The way it is wired is one wire on Batt post(Alt). 1 jumper wire on Batt post going to spade 1 on Alt. Spade 2 wire going to ammeter. There is power to both sides of ammeter. Sound anywhere close to correct??? Might need a picture to explain better huh?
-
- Team Cub Mentor
- Posts: 20379
- Joined: Fri Jul 02, 2004 9:52 pm
- Zip Code: 65051
- Circle of Safety: Y
- Location: Mo. Linn
Re: Alternator with a Mag
https://app.photobucket.com/u/farmallbo ... 2dfaa66681
Search the above link for Delco 10SI wiring diagram. Should be down one row and on the left.
Search the above link for Delco 10SI wiring diagram. Should be down one row and on the left.
I have an excuse. CRS.
-
- 10+ Years
- Posts: 3415
- Joined: Wed May 11, 2011 8:59 pm
- Zip Code: 39154
- Tractors Owned: 1969 Farmall Cub
1952 Cub
1942 Farmall H - Location: Raymond, MS
Re: Alternator with a Mag
My guess would be, if it’s truly a mag unit, is po had charging problems and switched to alternator. Mag can run independently from the charging system.
Thomas
-
- Cub Star
- Posts: 57
- Joined: Tue Aug 06, 2019 12:45 pm
- Zip Code: 63348
- Tractors Owned: 1950 Cub
1957 Farmall 400
1973 Farmall IH544
Re: Alternator with a Mag
Thanks to all for the ideas. Still haven't totally focused on this specifically, but have a lot to look into.
xrcr
xrcr
-
- Similar Topics
- Replies
- Views
- Last post
-
- 6
- 276
-
by ajhbike
Mon Jul 26, 2021 6:42 pm
-
- 11
- 439
-
by Dusty B
Fri Nov 11, 2022 6:12 pm
-
- 9
- 271
-
by phill_mi
Fri Dec 16, 2022 7:30 pm
-
- 28
- 713
-
by phill_mi
Wed Jun 28, 2023 8:53 pm
-
- 8
- 433
-
by tmays
Sat Mar 04, 2023 6:27 pm
Who is online
Users browsing this forum: Majestic-12 [Bot], taiterhead and 8 guests