David brown 1490

[1490db]

When driving engine is giving up engine revs are going down and not going up full to where they shud be anyone know what’s the problem

 

[Wood field]

When driving engine is giving up engine revs are going down and not going up full to where they shud be anyone know what’s the problem

Fuel filter ?
my nhTL100 did it , absolutely no power , changed filter and all good

 

[MrNoo]

As above prob fuel filter, is it the hydro box with the bands etc in it or manual. We had one here, hated it although the box was ok when it worked.
I would also check the turbo pipes (on the boost side) as with no boost it'd be even more flat as a pancake than normal

 

[robs1]

Fuel or air filter

 

[Netherfield]

Could be the push rod on the lift pump.

 

[Still Farming]

Cave fuel filter ,inline filter and muck in tank possibly.
Bio bugs fuel storage tank possibly too.

 

[nails]

When driving engine is giving up engine revs are going down and not going up full to where they shud be anyone know what’s the problem

Check no air getting into system, change filters, check tringle rod which drives lift pump, replace lift pump if old. If you think the tank is dirty , run it out of a can. Also check your brakes are not binding as that can happen if the discs are worn.

 

[Boohoo]

Are all 4 fuel filters clean?
Is the air filter clean?
Have you blown the pipe back to the tank?
If the return to tank isn't clear it can also cause issues.
Lift pump and push rod, don't replace one without the other
When were the injectors and pump last checked?
If you have the injectors out do a compression test.
Any diesel in the engine oil? I've seen a few 14s bend push rods, run on 3 cylinders and the diesel in the other cylinder ends up in the sump.

 

[Hay Maker]

When driving engine is giving up engine revs are going down and not going up full to where they shud be anyone know what’s the problem

It's just a DB the early 1490's were not a good tractor.

 

[Oliveau]

Could be the push rod on the lift pump.

Agreed. An easy fix.