574 fuel pump

nobbie · Mar 7, 2018

Hi all

recently got an 574 neuss powered tractor as may need the motor for my td8.Tried to get in on my 6x10 trailer and it actually bent the chassis....2.3 tonne was just too much so i am going to start it to drive it home as its power brakes and steering.
Pulled va4? fuel pump and found previous owner had put wrong lever in wrong hole jamming throttle spool.
Need to know slot positions for stop and throttle spool for reassembly also need to know if spring that came out during dismantling came from excess fuel/stop spool or throttle spool or somewere else?

A schematic would be great

Thanks Nobbie

thepumpguysc · Mar 8, 2018

If you took the bracket w/ the 4 screws off & then pulled the shaft bushings out.. the spring will fit nicely in the hole in the bushing.. real hard to mess it up.. there is a spring/shims in each bushing.. a large one & a small one..
IF your talking about a "return spring"?? usually has a hook on each end & goes under/behind the lever on the pump.
Theres usually 2, one on each lever.. both are spring loaded to the front.. low idle on one & full fuel on the other.
Every pump is different as far as the spline positions go.. BUT..
There is a factory stamp mark/dot on the levers & a stamp mark on the shafts.. THAT should get you close..
You got big brass ones for takin it apart.Lol
That pump is not for the novice.. WAY TO MUCH that can go wrong & lots of tiny shims & parts to loose.

Dieseltech · Mar 8, 2018

As the pump guy said, that pump is best left to trained hands. Even more now as most parts are non existent anymore. I had one that came in pieces last summer, glad I had the test stand to make sure levers were on correctly. At a Bosch service school years ago there was a comment made the VA series inventor may live in a rubber room now. It's a good pump IF it's cared for well, but good luck finding hard parts if needed..

JimB2 · Mar 8, 2018

Hi Nobble, take the advice of thepumpguysc and Dieseltech.

Caseih has a parts diagram of Bosch pump for D-239 engine, see link below.

JimB
D 239 IP Parts

nobbie · Mar 8, 2018

Thanks all.I worked in a pump rebuild room as an apprentice so have enough knowledge to get myself in trouble.I will check for marks on levers and spindles my only worry was over reving and not being able to stop it easily.so spring fits into cable controlled stop! Excess fuel lever and other rpm control lever has no spring.guy I bought from changed front cartridge on pump and jammed throttle control spool as he said he put884 fuel cartridge in.

JimB2 · Mar 8, 2018

Hi Nobble, see photo from internet of Bosch pump.
<image src="http://forums.yesterdaystractors.com/photos/mvphoto12414.jpg"/>

JimB

Al Baker(pumpman) · Mar 8, 2018

I still see about one of these VA style pumps each month or so. So it is safe to say I have been in a few. Sometimes getting the throttle n shut off lever positioned correctly isn't to bad. Sometimes I spend a fair amount of time getting it just right. I am doing this on a test stand, so to do one without one would be like doing a home vasectomy on your self. You might get it done, but maybe not. The money you will spend sending it out is WAY less than the money you will spend if things go wrong. These pumps are getting hard to find. Finding replacement parts is worse. AL

nobbie · Mar 8, 2018

jimb 2 thanks heaps that parts list is great.

Had a look at my dozer this morning and no 4 has gone sloppy?
Do the gudgeon or big ends normally go in these d239.
Whatever it is it went quickly.

574 fuel pump

nobbie

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thepumpguysc

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Dieseltech

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JimB2

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nobbie

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JimB2

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Al Baker(pumpman)

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nobbie

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