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ammeter
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- 5+ Years
- Posts: 28
- Joined: Tue Sep 23, 2014 5:53 am
- Zip Code: 30467
ammeter
My 51 has never charged since I brought it home 3 years ago. I didn't worry about it much since I kept a charger on it. I started working on the electrical system recently and I'm the type of guy that likes to start with a good baseline so I had the generator rebuilt and I replaced the VR, wiring harness, ground cable, plugs, plug wires, coil, points, condenser, distributer cap, light switch, and dash fuse. I currently have the headlights off and will rebuild them soon. (no taillight yet). Before I cranked it up, I polarized the generator. When I pulled the starter switch, the ammeter needle showed a slight discharge which is normal. After cranking, it runs fine but continues to show a slight discharge on the ammeter. The battery is showing static 6.13V. I am not convinced my charging system is working but before I start running tests I wanted to understand the system better. Will the ammeter show a discharge until the battery falls below a threshold, then show a charge?
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- 10+ Years
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- Joined: Tue Jan 12, 2010 2:08 pm
- Zip Code: 12514
- Circle of Safety: Y
Re: ammeter
follow the chart, note one is for a regulator and the other a cut out relay so make sure to pick the right one
- Drfting1
- 5+ Years
- Posts: 543
- Joined: Wed Nov 02, 2016 7:25 pm
- Zip Code: 24151
- Tractors Owned: 53 Cub
59 cub - Circle of Safety: Y
- Location: Rocky Mount VA
- Glen
- 10+ Years
- Posts: 6095
- Joined: Mon Mar 19, 2012 7:33 pm
- Zip Code: 00000
- Tractors Owned: 1956 Farmall Cub with Fast Hitch, F-11 plow, Disc, Cultivator, Cub-22 mower
- Circle of Safety: Y
- Location: Wa.
Re: ammeter
Hi,
The ammeter should show charging as soon as you speed up the engine enough that it will begin to charge, which is faster than low idle speed, which should be 500 RPM.
Try using the flow chart, like Tim said above. You could have gotten a defective voltage regulator, new parts can be defective.
The ammeter should show charging as soon as you speed up the engine enough that it will begin to charge, which is faster than low idle speed, which should be 500 RPM.
Try using the flow chart, like Tim said above. You could have gotten a defective voltage regulator, new parts can be defective.
- Jim in SC
- 5+ Years
- Posts: 355
- Joined: Mon Sep 15, 2014 10:16 am
- Zip Code: 29527
- Tractors Owned: 1951 Farmall H - "Ray R." (SN FBH 366519)
1959 Farmall Cub - "Pea" (SN 211538 J)
1964 IH Cub Cadet 100 - (SN 92562)
1971 IH Cub Cadet 106 - (SN 380760)
2018 Husqvarna YTH18542
Tractor previously owned:
1951 Farmall Cub - "Johnny R." - Circle of Safety: Y
- Location: Conway, South Carolina
Re: ammeter
nbsbbaker wrote:My 51 has never charged since I brought it home 3 years ago. I didn't worry about it much since I kept a charger on it. I started working on the electrical system recently and I'm the type of guy that likes to start with a good baseline so I had the generator rebuilt and I replaced the VR, wiring harness, ground cable, plugs, plug wires, coil, points, condenser, distributer cap, light switch, and dash fuse. I currently have the headlights off and will rebuild them soon. (no taillight yet). Before I cranked it up, I polarized the generator. When I pulled the starter switch, the ammeter needle showed a slight discharge which is normal. After cranking, it runs fine but continues to show a slight discharge on the ammeter. The battery is showing static 6.13V. I am not convinced my charging system is working but before I start running tests I wanted to understand the system better. Will the ammeter show a discharge until the battery falls below a threshold, then show a charge?
My '51 has the same problem and I've addressed it the same way - I keep a battery tender on it all the time. I too would like to solve the charging problem, so I appreciate the info and chart that has been posted. I think this may be one of my "winter projects!
"That's the great thing about a tractor. You can't really hear the phone ring."
Jeff Foxworthy
1951 Farmall H
1959 Farmall Cub
1964 IH Cub Cadet 100
1971 IH Cub Cadet 106
2018 Husqvarna YTH18542
- clodhopper
- 10+ Years
- Posts: 807
- Joined: Sat May 07, 2011 8:20 pm
- Zip Code: 27526
- Tractors Owned: 1950 Cub Demo
1978 Cub Cadet 1650
cub 193 plow
cub 174 planter
cub sidedresser
cub 144 cultivator
cadet 50C deck - Circle of Safety: Y
Re: ammeter
If you dont show charge at half throttle, check your belt tightness. If your belt is good, follow the flow charts.
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- 5+ Years
- Posts: 28
- Joined: Tue Sep 23, 2014 5:53 am
- Zip Code: 30467
Re: ammeter
Thanks to all. I'll follow the chart and see where it leads. Perhaps someone can tell me how construct a hood off fuel tank so can run the engine and have access to the generator posts and the backside of the VR?
- Don McCombs
- Team Cub Mentor
- Posts: 17429
- Joined: Mon Feb 03, 2003 6:45 am
- Zip Code: 21550
- Tractors Owned: "1950 Something" Farmall Cub
1957 Farmall Cub w/FH
1977 International Cub w/FH
1978 International Cub
1948 Farmall Super A - Circle of Safety: Y
- Location: MD, Deep Creek Lake
Re: ammeter
Here's one that I made from a lawnmower fuel tank.
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- Team Cub
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- Location: CO, Longmont
Re: ammeter
Just remember that the carb inlet threads are 1/2-20. Most barbed fittings for rubber hose are 1/4" pipe thread. You'll want to use one of the brass gas line fittings (1/2-20) with 3-4" of steel line to slide the rubber hose onto.
"We don't need to think more,
we need to think differently."
-Albert Einstein
we need to think differently."
-Albert Einstein
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- 5+ Years
- Posts: 2803
- 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: ammeter
nbsbbaker
Follow the flowcharts. very import and help full.
From what you have done at this points I suspect the regulator.
I have given up on the replacement regulators ( the cheap ones and the expensive ones) and replace them with a solid start one from a company called Clover out of California.
Here is a link to my solid state regulator project. viewtopic.php?f=1&t=94792&hilit=regulator
Follow the flowcharts. very import and help full.
From what you have done at this points I suspect the regulator.
I have given up on the replacement regulators ( the cheap ones and the expensive ones) and replace them with a solid start one from a company called Clover out of California.
Here is a link to my solid state regulator project. viewtopic.php?f=1&t=94792&hilit=regulator
When you only have 9 horsepower you need to know the names of all of the ponies!
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- 5+ Years
- Posts: 28
- Joined: Tue Sep 23, 2014 5:53 am
- Zip Code: 30467
Re: ammeter
Regarding the auxiliary fuel tank, I should be able to find an old lawnmower gas tank around here. Where do I get a fuel shutoff valve? NAPA, ebay, generator/lawnmower repair place?
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- 10+ Years
- Posts: 4974
- Joined: Fri Oct 29, 2010 11:34 pm
- Zip Code: 36558
- Tractors Owned: Cubs: (3)'49's, (1 is for parts), (1)'57 IH Cub LoBoy w/FH, (2)154 Number Series Loboys, (1 is for parts), '76 Longstripe w/FH, Mowers: C-22, Bush Hog 412, Pennington 59, Woods RM42CF, Woods 42, assorted FCub plows, planters, discs, etc. OTHERS: '49 AC B & Ind. Sickle mower, '61 AC D12 Ser 2, '52 8N, '56 Ferguson 35 Deluxe, '47 & '49 Avery V, '53 MM BG (offset), '51 JD M (regular), '56 JD 420C, with Blade and fire plow, '85 JD 850 (Yanmar) w/72" belly mower, '76? Yanmar 2TR15 1500 & Bush Hog SQ42S-2 mower, '78? FORD Dexta, '86 FORD LGT14D & 48" Mower, (2)Cub Cadets & Mowers (MTD), (4) Sears Surburban's, other MTD mowers, Jeeps & other misc. "treasures"
- Circle of Safety: Y
- Location: AL (Southwest)
Re: ammeter
My local auto parts and lawnmower repair ships have the shutoff valve in stock. If your tank has a threaded outlet try a local hardware store. They should have small threaded quarter turn valves. Here's one I installed in the fuel line after the sediment bowl for example:
Yours doesn't have to be this complicated but you can see the idea.Stan in LA (lower AL)
USAF & Reserves, Reg ARMY, ARMY NG (AL)
USAF & Reserves, Reg ARMY, ARMY NG (AL)
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- 5+ Years
- Posts: 441
- Joined: Sat Jul 12, 2014 10:10 pm
- Zip Code: 53105
- Tractors Owned: '57 cub Loboy
'61 cub - Circle of Safety: Y
- Location: Wisconsin, Burlington
Re: ammeter
Another mounting option
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- 5+ Years
- Posts: 28
- Joined: Tue Sep 23, 2014 5:53 am
- Zip Code: 30467
Re: ammeter
my local lawnmower repair had an old lawnmower gas tank. I mounted it on the fold out shelf on a 6 foot stepladder. Ran fuel line from the tank, thru a plastic shutoff, to the carb. Works quite well for next to nothing. Tomorrow, I start with the flow chart. Wish I had some of you looking over my shoulder.
-
- 5+ Years
- Posts: 2803
- 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: ammeter
Maybe that can be a new feature, "Looking over my shoulder', on the website - A person can schedule a live stream of a repair and have people comment on what we are doing in real time!
My money is on the regulator.
My money is on the regulator.
When you only have 9 horsepower you need to know the names of all of the ponies!
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