14A fuel pump problem

hello Asterix,yes the lifters are out of spec ,it will be pumping fuel early into the cylinders ,
the specs for fuel injector fuel pump are -1.728'' -1.730''
fuel pump plunger length - 2.6575'' -2.6577''
permissable wear 0.005''

edit -read next post below
i am not sure if you will get the 3mm that you need ,some else will know better than me.

you will need to reset the lifter settings .

you will need a set of micrometer and a set of pump setting tools .

i will post the pages you need to reset them .bruce oz

[img]http://img51.imageshack.us/img51/6913/14a15afuelpumpsetting1.th.jpg[/img]

[img]http://img51.imageshack.us/img51/2161/14a15afuelpumpsetting2.th.jpg[/img]

The old dozer bless you .......

hello ,the rack setting manuals says that there may be a torque spring(4h7122) ,.022'' thick and one spacer (8f9784),.117'' thick used on some models .

these removed will give it the normal rack setting of 1.729''

make sure these are still not in the pump housing ? ,bruce oz

It sounds like the pumps you found are the same bore, but not the same stroke, instead they are 3mm longer.

I believe if the longer pumps are matched sets (plunger and cylinder), they may work. Are the pumps listed in the manufacturer's catalog to fit the D8 tractor? Part numbers might not be same as number in D8 book or old pumps, but should cross over if they are usable.

What part number are the long pumps? Who is manufacturer? Some companies like FP Diesel use CAT part numbers on their parts.

hello Asterix,yes the lifters are out of spec ,it will be pumping fuel early into the cylinders ,
the specs for fuel injector fuel pump are -1.728'' -1.730''
fuel pump plunger length - 2.6575'' -2.6577''
permissable wear 0.005''

edit -read next post below
i am not sure if you will get the 3mm that you need ,some else will know better than me.

you will need to reset the lifter settings .

you will need a set of micrometer and a set of pump setting tools .

i will post the pages you need to reset them .bruce oz

[img]http://img51.imageshack.us/img51/6913/14a15afuelpumpsetting1.th.jpg[/img]

[img]http://img51.imageshack.us/img51/2161/14a15afuelpumpsetting2.th.jpg[/img]

Bruce, do you have the specifications forthe distance between lifter and the case (distance "A" in the 2nd page sent 2nd row) so that I can adjust it by subtacting the lenght excess ?

I already have the new pump, so I have to fix up the settings

Thanks

Some interchange info:

Original pumps:
4H5238, 7F6042, 8F2590 are all 10mm pumps for the 5-3/4 in. bore engine.
The current replacement is an 8M3137 (still available)

The 1P3409 is replaced by a 8M2899 (different pump)

8M3280 is listed as the replacement for 8M3137, 7F6042, 4H5239, 8M3277 and 8F259.

I'd recommend you get the 8M3137 pumps and not fool around trying to adapt the wrong parts.

Thanks Old Magnet, but I found that 8M3137 is replaced by 8M3280 (www.disa.it). This was the beginning of the troubles.......
A.

Couldn't get that link to work.
Try this site www.DPAUSA.com