04:42:08pm, Sunday, May 19, 2024
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international 1256 pump
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hey im a first timer here so ive got a 1256 that ive rebuilt the engine and thrown a 3lm charger on well bottom line is the pump is cranked in side and out and im at 150 hp need a lot more fuel I called fair valley performance in sauk city wi the guy was really knowlogable and seemd great but is it really gonna gost me $3200 for a 450 head and some other pump work injector nozzels and .93 lines ???????he did say 300+cc of fuel
thanks for the help |
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Re: international 1256 pump
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It isn't cheap to go tractor pulling. Email me for more details if you want to get some more input. ed64drag@gmail.com |
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Re: international 1256 pump
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ok thanks |
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Re: international 1256 pump
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Registered: 09/14/2009 Posts: 109 |
did you back the metering valve screw out?what leaf spring do you have in it?with it wide open you shld get 215 easy,dash 3 spring and a 3lm466 charger 250! |
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Re: international 1256 pump
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Registered: 09/03/2010 Posts: 393 |
I get 250 out of my 1256 with the old stock charger and punching the fuel some. Use to run a 1206 at 225 with just the fuel punched up some and they were 361's and the 1256 is a 407. I would think 250 should be easy. I would think with a 3lm and a 450 head you should get 400 easy enough. |
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Re: international 1256 pump
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It's a reman my gues would be they got it to pump enuf fuel for stock with old worn out parts and said good Enuff And shipped it |
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Re: international 1256 pump
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International disaster
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Really I didn't know that of coarse u gotta pull the whole thing apart to get to it ... |
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Re: international 1256 pump
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The only .390 heads I've seen in an oem application are some Minneapolis Molines. |
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Re: international 1256 pump
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I'm not sure what spring I just cranked it up an backed the out side fuel screw out I think this year I'm gonna just have a diffrent spring put in and a little tweaking if I can get to 250 with out a 450 head if at least not be so embarrassed out there ..... |
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Re: international 1256 pump
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Registered: 09/14/2009 Posts: 109 |
You did turn the leaf spring down right!not being a smart ass,just asking.the metering valve screw on the outside shld be backed all the way out.when you have the cover off you can see the metering valve. You don't want it to hold it back any. |
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Re: international 1256 pump
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Haha yes I turn it down ... Righty tighty , and the one in the top cover out |
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Re: international 1256 pump
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Anonymous User
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we removed the leaf spring. worked good , farmed all week pulled on weekends . all adjustment was done with external screw. |
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Re: international 1256 pump
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Registered: 09/14/2009 Posts: 109 |
That's surprising it only had 150hp.maybe the pump is getting tired. |
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Re: international 1256 pump
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International disaster
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It's a reman pump my gue is they got it to work good Enuff with old worn out parts and shipped it |
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Re: international 1256 pump
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Anonymous User
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some of these pumps when stock had shims on screw between leaf spring and roter to limit how far it can be tightened |
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Re: international 1256 pump
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Magnum Man
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Through the course of time, its hard to tell what pump is even on it anymore. For cheap power find a good 5020 pump, file down the leaf spring or leave it out altogether, make sure it has the steel weight retainer, if you can find a steel flywheel take out every other govener weight and go to town. I believe to make the 5020 .390 pump work on a international all that has to be done is relocating a couple of injection lines due to firing order. |
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Re: international 1256 pump
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Registered: 09/14/2009 Posts: 109 |
5020 didn't have a 390 there the same as a 12.both had 370's on them. |
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Re: international 1256 pump
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Registered: 03/14/2010 Posts: 135 |
I think I have a 390 head and rotor, no real use for itt |
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