Hi All,

I'm looking at maybe buying a County with a 4BD1T fitted. The car is a long way from perfect but it does have it good points. The biggest worry I have is that it seems to run rough and have no power on slight throttle openings. You really have to give the throttle a good shove before it seems to clear its throat and start making some power and running smoothly.

It is not the throttle cable - it does the same thing when you operate the lever in the engine bay. I've had a few 4BD1/4BD1T powered cars and all have been pretty responsive from low revs - nothing like this.

The owner reckons it is just the pump timing, or the springs that govern the advance in the pump. I'm not convinced and have a feeling it may not be cheap to fix. The injectors are new and there are no obvious diesel or air leaks. The owner seems to think it has always been like this, so it's not something that has just started happening.

Has anyone else had this problem or seen it before? If so, what was it and what sort of dollars would I be up for to fix it?

Cheers, Dave.

__________________
1985 County 3.9 Isuzu Turbo (dead)
2010 Pivot Mach 5
2005 Santa Cruz Bullit
2006 Banshee Morphine
2010 Masi CX
2008 Surly Long Haul Trucker

If it's a sus injector pump you could spend up to $2000 depending on what needs replacing,try the cheap and easy things first like the timing.
Cheers Eric

it might be the auto advance springs having given up or that the timing was never setup correctly in the first place.


it could be as simple as the injector pump has a weak spring or a sticking plunger barrel thats slowing the rack. does it run on at all?

buy it and fix it, the 4bd1 injector pumps a doddle to overhauls and setup.

__________________
Dave

"In a Landrover the other vehicle is your crumple zone."

Fozzy, 2.25D SIII Ex DCA Ute
The midlife crisis car
Some D1

For spelling call Rogets, for mechanicing call me.

Thanks for that. It doesn't run on at all. As for the pump being a "doddle" to overhaul and set up, maybe for you but I've never tried I reckon I'd have to give it to a professional shop to fix and that's what scares me. I've never come out of one of those places without having to donate a kidney.

__________________
1985 County 3.9 Isuzu Turbo (dead)
2010 Pivot Mach 5
2005 Santa Cruz Bullit
2006 Banshee Morphine
2010 Masi CX
2008 Surly Long Haul Trucker

If you can read you can do it.

If I lent you my manual so long as you know which end of the spanner or screwdriver to hold onto and which side goes on the fitting you can do it.

Failing that buy it and since its the same engine as the ADF uses and we have a new appy coming I can see about lining up having it done as a work history for his comp log.

or I can lend you a hand.

it might not cost you a kidney. Your liver on the other hand.........

__________________
Dave

"In a Landrover the other vehicle is your crumple zone."

Fozzy, 2.25D SIII Ex DCA Ute
The midlife crisis car
Some D1

For spelling call Rogets, for mechanicing call me.

dave I don't think it is wise telling people to pull there pumps apart.

you could just get away with opening it up and cleaning it maybe but rebuilding a fuel pump with out putting it on the test bench would be stupid.

Just my opinion though

all of which is covered in the manual......

and you dont really need a test bench to do the in line pumps just a set of graduated test tubes and some patients.

__________________
Dave

"In a Landrover the other vehicle is your crumple zone."

Fozzy, 2.25D SIII Ex DCA Ute
The midlife crisis car
Some D1

For spelling call Rogets, for mechanicing call me.

No longer my problem - someone else bought it last night. Looks like I'll just have to keep working on the one I've got

__________________
1985 County 3.9 Isuzu Turbo (dead)
2010 Pivot Mach 5
2005 Santa Cruz Bullit
2006 Banshee Morphine
2010 Masi CX
2008 Surly Long Haul Trucker

Hey, stumbled across your post. I bought the Landrover Sat night understanding the lack of acceleration to be 'normal' like the previous owner promised me. If it is not I may not go through with the sale. If anyone has any advice that would be most appreciated.

Note: This will be my first Landrover. I bought it because I need a troopcarrier and it seems heaps better than a toyota....

Ive got the next 3 days off, get it for a test drive and bring it around.

I'll get you some ammo to haggle the cost down.

__________________
Dave

"In a Landrover the other vehicle is your crumple zone."

Fozzy, 2.25D SIII Ex DCA Ute
The midlife crisis car
Some D1

For spelling call Rogets, for mechanicing call me.