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Need more pulling power, gota smoke them red things.

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Joel Williams

09-19-2001 12:04:59

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I have a 730D I use only for pulling. What can I do for more HP? Larger injectors, turn up the fuel, etc.

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G Taylor

09-24-2001 20:50:47

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Re: Need more pulling power, gota smoke them red things. in reply to Joel Williams, 09-19-2001 12:04:59

Lots of high HP machines spin out while the stock engine tractor with perfect weight balance & hard biting tires wins the class.

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Eric Horne

09-20-2001 06:56:43

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Re: Need more pulling power, gota smoke them red things. in reply to Joel Williams, 09-19-2001 12:04:59

Pull the pump cover and check to see if your fuels pumps are timed correctly. While in there, turn the fuel rack screw until you can get the max setting. Pull the injectors to see if the fuel spray pattern is nice and misty. Also check to see if you are getting the same amount of fuel from each injector. Clean the air cleaner or get a paper element set up. A JD diesel wants air to run. These diesels also like the heavy classes since they are nose heavy, torque monsters. A service manual will be a great asset for your tune up.

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Ken

09-21-2001 17:31:36

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Re: Re: Need more pulling power, gota smoke them red things. in reply to Eric Horne, 09-20-2001 06:56:43

Eric- Where would you suggest getting a paper element?

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Joel Williams

09-20-2001 16:54:58

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Re: Re: Need more pulling power, gota smoke them red things. in reply to Eric Horne, 09-20-2001 06:56:43

Thanks for the tips. I do have the manuals for the tractor. That is the first thing I get. I get the good JD stuff too, not that after market crap. SOmething has to be off drastically if it is only makning 39 HP.

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Eric Horne

09-20-2001 18:44:09

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Re: Re: Re: Need more pulling power, gota smoke them red things. in reply to Joel Williams, 09-20-2001 16:54:58

If your 39 hp came from a PTO driven dyno, don't count out the PTO clutches slipping. The 820 I pull showed 33 hp at the last fair pull. But from the noise coming from the PTO and getting 9th out of 30 in the 12000lb class, it's fair to say some adjusting is needed in mine.

Pulling the fuel pump cover will probally be a two man job since I believe the hood and fuel tank need to be removed to get the fuel line going from the cover to the tank free. Check the service manual for the correct procedure and order what gaskets you might need ahead of time. Since you probally have the parts book, write the part numbers down for the stuff you need and use that info to double check the JD parts man. I got so tired of my dealer fumbling around, I just tell the the part number now. Don't forget to note the substitution numbers too.

If you pull the injectors, get new copper washers that go between the injector head and cylinder head. Don't trust the old ones because if the injectors are not sealed properly to the head, you will have fire traveling back along the injector. Also watch the oil level after you reinstall the injectors and start running the tractor. A loose or broken injector line will put diesel in the oil and increase the oil level.

If you wish to discuss this further, drop me an e-mail and we will get together on the phone. Eric

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Joel Williams

09-21-2001 18:29:36

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Re: Re: Re: Re: Need more pulling power, gota smoke them red things. in reply to Eric Horne, 09-20-2001 18:44:09

I kinda thought the PTO slippage thing too but the RPM's dropped down to 750 both times he tested it when he loaded it up. If the PTO was slipping, would he have been able to lug it down like that? The engine doesn't sound right. It doesn't have the clean firing sound my R does. The R will also run away fron the 730 on a hill and it shouldn't be like that. Joel

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John T

09-19-2001 15:43:21

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Re: Need more pulling power, gota smoke them red things. in reply to Joel Williams, 09-19-2001 12:04:59

Jeol, as an engineer I have alot of (helpful ??) hints or theories on gas pullers but not much of a diesel man. I dotn think the JD Diesel lends itself to simple fuel turn up as easily as the otehr types u see turned up. I can tell you that you need to get more and cooler (denser) air into the cylinders to match that incresased fuel and that horsepower is a function of torque times RPM so add more RPM if you can also via governor adjustments. (Any increase in size and less restrictions like in air filters and gettign more and cooler air into the air pipe will help) Of course, the higher and closer you can get the drawbar is where you want it with any weights such that you barely just float the front end with all weight being on the rears for traction. The problem with the JD is you cant get that high ground speed up early in the pull and store energy as momentum ( 1/2 MV squared) in the sled liek the fast off the line Ollies and Binders. However in a dead lug pull the JD shines since most of its HP is from torque, so even if RPM drops a lil at end, you stll got most of the HP. More air, more fuel, more RPM, fast initial off the line speed, and the right as high a possible gear to run out of power and traction at same time sounds simple, but may take alot of money and work to achieve. Good luck Ol John T

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farmall

09-19-2001 13:53:13

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Re: Need more pulling power, gota smoke them red things. in reply to Joel Williams, 09-19-2001 12:04:59

Put ared engine in the beast and she will pull everyone khows IH rules. Takes 2.5 hp of JD for 1 hp of red power

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Doc

09-21-2001 18:02:28

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Re: Re: Need more pulling power, gota smoke them red things. in reply to farmall, 09-19-2001 13:53:13

Remembering from my youth... the shops were really good at putting rearends in the red beasts... Lots of power, correct, too bad you can't get it on the ground and pull...

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Greg H.

09-21-2001 09:49:16

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Re: Re: Need more pulling power, gota smoke them red things. in reply to farmall, 09-19-2001 13:53:13

Go have intercorse with yourself, or better yet go back to the IH board were someone I'm sure care's for you.

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Joel Williams

09-19-2001 17:32:29

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Re: Re: Need more pulling power, gota smoke them red things. in reply to farmall, 09-19-2001 13:53:13

Yeah, that's why I have three of them red things settin in the shed. Can't get anything out of them, they just take up space. Not really, I have three reds and three greens and love them all. Check them out under my name on this site. I have come to find out that you don't need to think about taking a stock tractor to a stock antique tractor pull though. Probably will quit pullin all together and just show or continue to collect. Too many people cheating. Anyone can cheat and win.

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BOZO

09-19-2001 16:14:57

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Re: Re: Need more pulling power, gota smoke them red things. in reply to farmall, 09-19-2001 13:53:13

Yah sure, yust like 50 years ago. Herb D. was cutting silage for Bill S., pulling a V-4 powered JD chopper and 16' chopper boxes on 120 rod rows. Unfortunately it was a wet fall and after Bill f____ around with his H Farmall for a couple of loads, he put it in the shed and got the M Farmall out, 12" tires. Herb was pulling the chopper and wagons with a JD B with steel disk wheels and 11" tires.

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Bob

09-19-2001 13:16:18

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Re: Need more pulling power, gota smoke them red things. in reply to Joel Williams, 09-19-2001 12:04:59

Joel, you may have already checked these, but tire size and hitch height can make a difference. Good luck.

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