Hi folks, sorry i've been a tad busy of late but i need to pick some brains.
Typical 4.2 Diesel, bloody gutless below 1200rpm pull like a train at 2000rpm with 0.8bar boost but it then over fuels at 3000rpm to the extent it doesn't want to pull through to 4000rpm if it's pulling a load or in a high gear.
When i say over fuels i mean James Bond style black smoke screen.
It doesn't "look" like the pumps been tampered with so i'd of thought it's a fault of some sort or is this typical of over adjusting the main delivery screw?
I need to replace the internal springs anyway, so while i'm in there i might as well be looking for any other faults.
(It's got the nose up low rpm problem but a pusher pump doesn't help)
Any thoughts anyone?
Starts fine, small puff of smoke when blipped, typical puffs of smoke climbing rocks, pulls great between 2000 and 3000
Smells a bit, makes your eyes sting a bit, typical bruiser really.
Obviously it's rare this is any kind of problem, but I want to fiddle and improve the low down flat spot but don't want to fiddle until I get rid of this fault first.
Typical 4.2 Diesel, bloody gutless below 1200rpm pull like a train at 2000rpm with 0.8bar boost but it then over fuels at 3000rpm to the extent it doesn't want to pull through to 4000rpm if it's pulling a load or in a high gear.
When i say over fuels i mean James Bond style black smoke screen.
It doesn't "look" like the pumps been tampered with so i'd of thought it's a fault of some sort or is this typical of over adjusting the main delivery screw?
I need to replace the internal springs anyway, so while i'm in there i might as well be looking for any other faults.
(It's got the nose up low rpm problem but a pusher pump doesn't help)
Any thoughts anyone?
Starts fine, small puff of smoke when blipped, typical puffs of smoke climbing rocks, pulls great between 2000 and 3000
Smells a bit, makes your eyes sting a bit, typical bruiser really.
Obviously it's rare this is any kind of problem, but I want to fiddle and improve the low down flat spot but don't want to fiddle until I get rid of this fault first.