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diesel injector pumps???

A

Anonymous-0

Well-known Member
Hey folks,
Looking for a tractor to replace my smaller one.

5 tractors (IHC) share the same motor/trans but boast 34 to 45 HP.
Kid in town is a school trained ag mechanic and tells me that there are two different injector pumps. Says to buty the one I want regardless of HP and he will adjust to get the 45 HP.

Is he pulling my leg?

Dave
 
I'm know expert, but I had a 90 hp tractor and had the pump turned up and got 110 hp power out of it ,but it is harder on the motor,things will wear out faster.
 
Provided you ~know~ for a fact that all of the internals are the same, cooling system is the same AND the injectors are the same... then yes, turning up the pump is all that would be necessary. That said... it's doubtfull that all of the engine internals are exactly the same. Someone more familiar with the specifics of the particular tractors you're looking at could better tell you that. I could tell you a lot about specific models of Ford's but not IH.

I would expect that injector nozzles are likely different... and if that's the case you may only succeed in producing more smoke and no more power if the nozzles are too small for the power you want.


Rod
 
Yes, there could be different pistons and a whole lot of other differences. If tractors are like anything else(they are), trying to get more power out of them will just end up making them blow up a lot sooner. Turning up a 100 HP tractor 11 HP isn't too big a deal but turning up a 35 HP tractor 11 HP is over 32% more power! I think you'd be best to find a tractor in the HP you need. Dave
 
It does depend on the tractor...
Some of the Fords that I'm thinking of are 90% the same over a span of 25 HP and a couple are 99% similar over a 10 HP span... it's just that the lower power one is derated or the high idle is lower... so turning ti up is not a problem. On the other hand, some are substantially different. The 3930 and 4630 are nearly identical twins other than an overdrvive transmission ratio and smaller wheels on the 3930... and it's just rated at a lower speed with slightly less fuel delivery. It could very easily be turned by 10-15 HP at no detriment to it's design.
On the other hand... older models like the 3000 and 4000 are very different tractors with different displacement engines, etc and turning a 3000 up by that amount is probably asking for trouble.

Rod
 
The 5400 Masseys have the same perkins base engine in them but start without a turbo around 60 hp and go to 105 pto hp with turbo and intercooler.

The turbo models have oil cooled pistons I believe. The i/c model isn't any different really other than it has a stronger front axle. The rest of them share the same axle.

The 5445 and 5455 are the same with just some different settings on the pump. Gotta be careful though, every series is different.
 
That"s quite an increase. I have/had three JD"s, each turned up about 15 percent over factory. 29000 hours, (sold one with 11000 hours, still have two with 9000 each)-all original engines- no overhauls. JD uses the same block on multiple tractor models, adding turbo and intercooler when increasing hp.
 
If you're talking about new tractors, you will void any chance of warranty if you change the fuel settings. Late model engines are rarely based on just one parameter to eestablish HP
 
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