B7100 ~ More power?

[RobertN]

Did he put a V8 in it? Since I got into antiques, I have seen the Funk V8 conversion using a flathead Ford V8 in the 8N/9N.

Looks cool with zoomie type exhaust sticking up there!

RobertN in Shingle Springs Calif

 

[RobertN]

Always keep your thumb OUTSIDE the steering wheel. Seen em get busted while 4wheeling in the Jeep. Running older rigs w/o PS on the rocks, well they'll all the sudden spin the sterring wheel when you bump a rock.

My B8200, nor the new Farmall "A" have PS... Thums outside those steering spokes!

RobertN in Shingle Springs Calif

 

[RobertN]

Bird, did they say if it was governed?

I wondered about that on this Farmall I got. It's goverened for PTO speed. From the books, you just run it up in rpm. But, that assumes the governer is set correctly...

RobertN in Shingle Springs Calif

 

[DennisD]

Thanks for the tip about the throttle setting, I was unsure about that. I haven't been running that fast. Also, thanks for the tip about the knucle bruiser, I'll try to keep a tight grip. I agree about the lack of gauges, so far that is the only thing I don't like. Has anyone installed a temp gauge on the 7100? If so, where did you find a plug to install the sending unit?

 

[Bird]

RobertN, I'm certainly no diesel mechanic, but aren't they all governed in one way or another? And I'm pretty sure the guys were right about the PTO speed on the B7100 without a tachometer. Now that I have a B2710 with a tachometer, PTO speed is 2584, rated hp speed is 2600, but wide open throttle gets somewhere close to 2800, so wide open, then ease off just a bit would get you there on this B2710 also./w3tcompact/icons/smile.gif I'll admit to not having torn down a diesel engine of any kind, so I'm not entirely sure how the governor works, but my shop manual does show how to disassemble and re-assemble the "governor shaft."

Bird

 

[W5FL]

Tape it tightly to the upper radiator hose. Then put a layer of insulation, then tinfoil and tape it again. Should read within 5 degrees of a block mounted unit. If you decide to remove it, it is easy.

 

[Bird]

Dennis, with the B7100 not having a water pump nor a temperature gauge nor a coolant recovery jug, I was a bit concerned about that, but a factory service rep told me not to worry about it. He said if it starts to get hot, "You'll hear it whistling from steam escaping."/w3tcompact/icons/frown.gif (They did stress keeping a clean 50/50 mixture of water and anti-freeze, not any stronger mixture, in the radiator.) Fortunately, mine never whistled./w3tcompact/icons/smile.gif And while I didn't ask how, where, etc., one dealer told me he could install a tachometer for about $200, so I decided I could live without it.

Bird

 

[RobertN]

You grew up on a "green" tractor; did it have a tach? How did you control PTO speed on it? This Farmall "A" I just got does not. Does have a oil pressure gauge though I do wonder how they set a governor on a tractor that has no tach. They must have one they hook-up just for the procedure, I'm guessing. On the B7100, there must be a service port for hooking up a tach. Or, a person could use the add-on versions where a sensor an pickup are added on the crank pulley.

For the B7100, it should spit and whistle like this old Farmall "A", as it is a thermo-siphon system right? There's no waterpump. The cooling system is non-pressurized, yes?

It's interesting how they still make use of the thermo-siphon system after all these years.

RobertN in Shingle Springs Calif

 

[Bird]

RobertN, that "green" tractor I started on didn't have any gauges, and it didn't have a PTO either (had PTOs been invented by then?). The only implements we had were a single bottom turning plow (I never heard the word "moldboard" back then), a double buster, and the remains of a horse drawn disk (still had the seat on it so someone could ride on it for ballast, but Mother refused to ride it after Dad went over a terrace and flipped her off backwards once).

And for those of you who don't know what we're talking about, my first experience with a tractor was a small 2-cylinder gasoline John Deere that I always seemed to remember Dad saying he thought was a 1940 model, but after looking at some information Robert gave me, I think it must have been a 1938.

And yep, the B7100 has what we call a thermo-siphon system, but that factory service rep had another name for it and I've forgotten the word he used. But it did have a pressure cap on the radiator.

Bird

 

[Kelvin]

Re: B7100 ~ (Temp Gauge)

On my B7100, I bought a mechanical temperature gauge and had a radiator shop solder in a fitting in the top of the radiator right next to where the top hose enters the radiator. I get pretty good results at that location. Since my B7100 is an older model (doesn't have an hour gauge) I mounted the temperature gauge where the hour meter wouldv'e gone.

I won't go into it here, but you need to be aware of the B7100's thermo-siphon cooling system (no thermostat; no water pump). If you are interested, I will also go into the "max temperature" calculations. Don't believe the generic dealer answer "max temperature is approximately 100 degrees above ambient". I can (and have) prove that to be incorrect.

While mowing with my mid-mower, I find the B7100 to run cooler at full throttle than it does where I used to run it (about an inch off of full throttle). I can only assume more airflow across the radiator to be the reason.

Hope this helps
Kelvin