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Why convert to 12v? Tap oil pressure where/how?

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Robert

08-29-2001 03:54:50




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I'm looking at a "6-volt Ford with an 8-volt battery." That's what the guy says. I see all this stuff about a 12-volt conversion and I would like to know why this conversion is so common. Is the 6-volt system just a hassle waiting to happen? Should it be converted as a matter-of-course so to avoid being put in a lurch when the system burns just as you are needing to use the tractor? You just tire of the battery going dry or what? Does the 8-volt battery on a 6-volt system offer any insight into whether and what electrical problems might be expected with this tractor? I've seen an ad for a 6-volt or 8-volt electronic voltage regulator that eliminates the "cut-out" problem with the 6-volt system. Would the use of that regulator avoid the systemic burn-up? One more thing and I may find it in the archives but what is the best way to get an oil pressure test on this tractor? Best place to tap, fitting size, etc. I am looking at one that has no pressure or a bad dash gauge. There is moisture under the glass. Thanks in advance. Tractor on!

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Bert

08-30-2001 05:11:18




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 Re: Why convert to 12v? Tap oil pressure where/how? in reply to Robert, 08-29-2001 03:54:50  

Nobody has mentioned the best reason for 12V conversion.

Many accessory devices are 12v. Aiprumps.waterpups, fuelpumps, winches, sprayers, compressors, 8-track tapeplayers, musical horns that play Dixie, sirens, portable fridges. The list goes on.

12v is not just for launching rockets anymore.

Unless you want to drag around a 12battery and constantly recharge it, 12v may be a good idea for running outboard gear

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Ron Swank

08-29-2001 12:34:11




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 Re: Why convert to 12v? Tap oil pressure where/how? in reply to Robert, 08-29-2001 03:54:50  
I still have the same old 6 volt system, charging my 8 volt battery that I have had for years. One of the reasons that we went to 8 volt batteries here in central Pa. is that on a cold winter night when you just had to use that tractor, the 8 volt would deliver more cca than any 6 volt batteries we could find, these are in use in working, farming tractors all over this valley, and they are not hiding any problems they are just a prefference. I am still using my 6 volt system because it works. However the first time that I have a major problem that will be converted to 12 volt. It just works better, lets face it there have been alot of improvements in the last 60 years. If you plan to maintain a pristeen restored tractor leave it alone, if you are going to use it as an honest working tractor do not be afraid to convert, I have converted many of them in our area including 4 older tractors that we use on our farm, and have had no problems. Best of luck, enjoy your new toy when you get it. Ron

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Question for you....(Ed-Illinois)

08-29-2001 14:30:40




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 Re: Re: Why convert to 12v? Tap oil pressure where/how? in reply to Ron Swank, 08-29-2001 12:34:11  
so, what are your voltage readings at the 8 volt battery while the tractor is running?



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chuck

08-29-2001 11:28:59




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 Re: Why convert to 12v? Tap oil pressure where/how? in reply to Robert, 08-29-2001 03:54:50  
Robert, I am a 12volt proponent. If it is a side mount distributor you can get an electonic module to replace the points and a twelve volt coil and eliminate all electrical concerns. You can run plenty of lights on cold nights and they don't dim when you drop the throttle to back up or sit at idle working on something and using it for a light source. It also becomes a nice mobile 12 volt source for starting other things around your palace (or launching Estes rockets in my case). 7 or 8 years on my 51 without a hitch-I noticed the other day that the battery I put in when I converted is still in there-try that with a generator.

chuck
436244

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Ever put one in the tailpipe?

08-30-2001 02:05:18




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 Re: Re: Why convert to 12v? Tap oil pressure where/how? in reply to chuck, 08-29-2001 11:28:59  
HaHa



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Now that is the best reason I heard....(ED-Illinois)

08-29-2001 12:03:31




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 Re: Re: Why convert to 12v? Tap oil pressure where/how? in reply to chuck, 08-29-2001 11:28:59  
Launching rockets - now there is a reason to convert to 12 volts that I can understand!



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bg

08-29-2001 08:55:32




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 Re: Why convert to 12v? Tap oil pressure where/how? in reply to Robert, 08-29-2001 03:54:50  
Buy a cheap oil pressure gauge. Unscrew the fitting from the old one, attach it to the back of a the new gauge. I would guess that if the tractor is running, it has oil pressure. I wouldn't worry about it too much. Use it as a bargaining chip.



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TimK

08-29-2001 07:58:42




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 Re: Why convert to 12v? Tap oil pressure where/how? in reply to Robert, 08-29-2001 03:54:50  
8 volt, how do you keep it charged with a 6v generator ? Convert to 12 v if you are going to use the tractor in the winter. Otherwise, I'd keep it 6v. There have been hundreds of posts on this Board with people having problems with their 12v conversions. Work thru the 6v system so every thing is clean and tight, battery charged, etc. and I guarantee that tractor can set for weeks without starting and will start right up on 6v in non-winter months. All that assumes compression, carb, etc. are all ok. My $.02

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Robert

08-29-2001 06:16:35




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 Re: Why convert to 12v? Tap oil pressure where/how? in reply to Robert, 08-29-2001 03:54:50  
Okay, I'm reassured the 8-volt battery is an example of the get-a-bigger-hammer approach to tractor repair. Unless I hear different we can leave it at that. I can take a gauge with me to check the pressure on this other 9N but it would be nice to know I had the correct fitting. Doesn't matter too much 'cause it's in town and I can hunt something up. I think that is like 1/8" flare? Well, I suppose I'll know it when I see it at the hardware store. Thanks guys. Man, three replys in an hour or two! :) Tractor on!

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Ed-Illinois

08-29-2001 05:31:05




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 Re: Why convert to 12v? Tap oil pressure where/how? in reply to Robert, 08-29-2001 03:54:50  
Robert - a 12 volt conversion does exactly what the 8 volt battery does - it hides an electrical problem.

I have a 1946 2N which seemed to run great until it's coil gave out. As I looked into the wiring, I found someone before me had bypassed the resistor, probably to get a hotter spark. the end result was a burned out coil.

Also consider that a 6 volt generator puts out 7.3 volts. How does an 8 volt battery get charged with 7.3 volts? The 8 volt battery is disguising an electrical problem that will more than likely exist with a 12 volt conversion. If you get the tractor, be prepared to spend time on the electrical. By the way, sinc there is no standard 12 volt conversion, there will be many variables which can cause difficulties - just check the archives.

And on the subject of cut-out relays....

These were simple devices that early on proved to be a problem with charging and discharging the battery. Early this past spring I went through three of them that didn't work in one month! Many attribute this high failure rate to poor manufacturing of replacemnt parts. Several members of this board sugeseted looking into the device which I believe you mentioned. It is a voltage regulator that from the outside looks just like the cutout relay. However, it works.
third party image
I have used mine for 6 monhs and havn't had to charge the battery once. Before, with the cutout relays, I was charging it every week. I use my headlights without fear that the battery will be dead the next day. I am very satisfied with it and I recomend it to anyone with a 9N or 2N. The 8n's have voltage regulators.

By the way, the oil presure gauge is supplied from a tee located on the operator side of the engine, near the exaust manifold outlet.

Good luck and get back to us if you need more help.

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Salmoneye

08-29-2001 05:18:49




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 Re: Why convert to 12v? Tap oil pressure where/how? in reply to Robert, 08-29-2001 03:54:50  
The 8-Volt 'band-aid' is a common sight and always makes me leary.
It is there hiding a problem that someone wanted an easy fix for.
12-volt conversions may spin the starter faster. but there is no standard so when it comes time for you to have trouble (and you will), there will be next to no help forthcoming as we will have no clue which conversion method was used without page after page of descriptions and questions.
Look in the archives for '12 volt conversion' and see what I mean.
Fix the six volt system and you will have another 50 years of reliable service.

As for the 'best' spot to test the oil pressure, it is where the line is tapped in for the dash guage.
Just because the guage has some moisture on the inside of the glass does not mean that it does not work.
My guage gets some condensation in it when the weather changes but it works fine...

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JerryU

08-29-2001 04:33:01




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 Re: Why convert to 12v? Tap oil pressure where/how? in reply to Robert, 08-29-2001 03:54:50  
You have just asked the question of the century. More has been written, not only on this, but other boards on this topic than any single topic. The answers are very simple:
1. There is nothing inherently wrong with a 6 volt system. Keep your connections clean and everything will work great--for a lot of years.

2. The 12 volt system is more forgiving, it allows things a wider margin of wear and error. Starter spins faster, spark is usually hotter when starting.

The prevailing thoughts are: If the system works, why change it. If it doesn't you have two options, repair it and it should work for years or change it to 12 volts, which is relatively trouble free, but costs to convert.

Now my two cents worth. I have used both. If your generator died and it is a working tractor, you might want to look into the conversion, especially if you can make brackets and and wire yourself. If you have to buy a kit, I think it would be cheaper to go back to 6 volts.

The final analysis says the decision is up to you. 12 volts is more forgiving, but not a cure all for everything. If you do convert--save the old parts for when you may want to go back.

My tractor--a 9N that was sloppily converted when I got it so I redid it and it has been a 12 volt hummer for the last 6 or so years.

FWIW.

Jerry

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