Horsepower from last night

notjustair · Mar 15, 2014

I came back today to read what had been added to that thread. About half way in was some talk of replacing a motor in an IH H to see what happened.

About a year ago I stumbled across this YouTube video. This guy put a mower engine on his Massey 33. I used to know how big it was - maybe 20 horse or so. This video is of him using it to plow. I've also seen it raking. I'm not sure what a 33 was rated but he's pulling two bottoms. I think his biggest issues are probably that the front is light and that he painted it K-state purple.

Just thought it was interesting. Clearly it goes faster as it is higher RPM. He also put a centrifugal clutch on it so I'm sure he looses some to slippage. Seems to work fine for a part timer. It would probably be a pretty efficient thing to use on the auger.
Massey 33 repower

gtractorfan · Mar 15, 2014

Yeabut that soil looks like a sandbox. I still say working a small engine constantly at its highest r.p.m's (where it gets its rated h.p.) under full load -- it won't last.

Anonymous-0 · Mar 15, 2014

Here in northeastern Pa. there is a tracator that has six 6Hp briggs in it. 3 on each side and that tractor will out pull any other tractor in it's class.

ih_bug · Mar 15, 2014

its a 13 hp clone of the honda gx390

mattwillson · Mar 15, 2014

I went the other way and shoehorned a bmc diesel out of a nuffield in a mh30, works really good.

Gary from Muleshoe · Mar 15, 2014

Isn't that what they are built to do? I have three garden tractors, a 65 Case 180, 66 Ford 80, and 68 JD 112 all with original engines. No smoke and plenty of power. So I am thinking maybe you need to do your homework before you make a statement such as this. Small engines are made to run at high rpm for long periods of time.

Eldon (WA) · Mar 15, 2014

(quoted from post at 18:49:41 03/15/14) I came back today to read what had been added to that thread. About half way in was some talk of replacing a motor in an IH H to see what happened.

About a year ago I stumbled across this YouTube video. This guy put a mower engine on his Massey 33. I used to know how big it was - maybe 20 horse or so. This video is of him using it to plow. I've also seen it raking. I'm not sure what a 33 was rated but he's pulling two bottoms. I think his biggest issues are probably that the front is light and that he painted it K-state purple.

Just thought it was interesting. Clearly it goes faster as it is higher RPM. He also put a centrifugal clutch on it so I'm sure he looses some to slippage. Seems to work fine for a part timer. It would probably be a pretty efficient thing to use on the auger.
Massey 33 repower

Makes me cringe watching people plow with un-scoured moldboards......

notjustair · Mar 15, 2014

It's much smaller than I thought it was. That makes it even more interesting. I wonder how much the speed in road gear changed. It would probably have come close to doubling the rpm of the original engine (if it was like a letter series Farmall).

Eldon (WA) · Mar 15, 2014

(quoted from post at 20:37:42 03/15/14) It's much smaller than I thought it was. That makes it even more interesting. I wonder how much the speed in road gear changed. It would probably have come close to doubling the rpm of the original engine (if it was like a letter series Farmall).

It has a chain drive to the transmission input shaft. Can't tell how much, but looks like a reduction in speed was done there. Makes sense to gear it at that point, and easy enough to get back to the stock rpm at the input shaft.

buickanddeere · Mar 15, 2014

Problem is some people don't know the difference between power and torque rise.

IA Roy · Mar 15, 2014

The centrifugal clutch will not affect the efficiency. It does not slip after it comes up to speed and is fully engaged. This is similar to the disc clutch slipping until you get your foot off the pedal.

4020guy · Mar 15, 2014

No replacement for displacement. Momentum from rotating larger, heavier parts wouldn't hurt either...Ron

ih_bug · Mar 15, 2014

he says its turning 900 rpm at the input shaft

Robin Hood · Mar 16, 2014

Is that the Case I see at Jacktown?

MarkB_MI · Mar 16, 2014

That's an interesting illustration that what really matters is drawbar horsepower. Put the same engine in a typical garden tractor and it wouldn't be able to pull the plow. But mount it on a platform where it's able to get all 13 hp to the ground, and it does pretty good.

northeast puller 1 · Mar 16, 2014

Mt Man and Robin Hood. That tractor at Jack town is a General. He pulls it for exhibition only. The crowd loves it. He always kicks but with it. But as exhibition he weighed in a little more then the class he is in I think.

Traditional Farmer · Mar 16, 2014

Pretty interesting but I'm not too impressed with the plowing looks like very loose soil being plow pretty shallow.

Massey farmer · Mar 16, 2014

Did you mate the bmc to the massey bellhousing or did you have a bellhousing on the bmc you mated to the input shaft of the tractor? Any pics? Thanks

Bob · Mar 16, 2014

THIS is TORQUE!

<img src = "http://www.gondtc.com/~blweltin/Hawk%27s2006/TA%27sOutAgain.JPG">

JDemaris · Mar 16, 2014

No big surprise. An engine in a mower or a tractor relies on harnessing the energy from explosions. A Famall H engine running at 1600 RPM has only 800 explosions to harness in a minute. A mower engine running at 3600 RPM has 1800 explosions to harness. If you want an engine to last a long time doing heavy work -lower speed and bigger explosions is the answer. Also when comparing horsepower specs - it silly to compare gross HP rating (mower) to PTO HP (from a tractor).

Dean · Mar 16, 2014

I agree.

I've a couple of stock 8Ns that could pull that in third gear.

Dean

JDemaris · Mar 16, 2014

That was a general statement. To be specific - the IH has four big explosions in two revolutions, whereas a mower engine has two small explosions in two revs assumeing it's a two-cylinder engine and using a four-stroke-cycle. So a 4 cylinder IH @ 1600 RPM has 3200 large explosions. A 2 cylinder Kohler running at 3600 RPM has 3600 smaller explosions.

rustred · Mar 16, 2014

he is not really plowing, just pulling some dirt. get it in some sod and i think it will power out.

CGID · Mar 16, 2014

In Boise ID, there is a purpose-built four wheel rig similar to the one in your photo that people sign up to for driving themselves around downtown. The difference is they all face the middle. In the middle is a table and a beer tap. A designated driver steers and brakes. The pedelers always seem to be having a good time. I can't comment on legalities. I assume the owners have that covered.

gtractorfan · Mar 16, 2014

The way I was looking at it is, consider a car engine. For instance rated at 300 h.p. How long would that engine last if it was being pulled constantly where it was at full throttle but being bogged down? I have a homemade woodsplitter, the engine was bad on it. I had a 5hp engine sitting around. I changed the coupler and used it. The pump was rated for a bigger engine. The 5hp ran it but was often bogged down and sometimes stalled it. Before I got done that season the engine was toast, crank bearings shot. Splitter now has a bigger engine that pulls it in its normal load range.

T in NE · Mar 16, 2014

At full LOAD, no it won't last. At full RPM, yes it will.

Horsepower from last night

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