Vehicle & Technical > Discovery
gutless disco
thumbs:
ALL SORTED
its like driveing a different motor, found in the end a little pipe that goes from the turbo round the back of block and connects to pump was off, most have been working loose for a while.
reffited that with new banjo bolt, checked all hoses ok, removed egr valve, and tweeked pump 90deg.
all i can say is wow, it pulls away :D
Richie_EB4:
--- Quote ---Boost pressure of the Turbo:
Connect a Boost Gauge and go for a drive - try and find a longish hill and attack it flat out in 4th (or 3rd) and see what the maximum pressure is. It should be 1 bar or 15 psi (just over a bar which is 14.7psi) - if lower then adjust to suit. (1bar on a 300Tdi, 0.8 bar on a 200Tdi - though you can run 1 bar without a problem on a 200Tdi)
--- End quote ---
Any one tell me where and how to fit a boost gauge please
Sharpshooter:
Can anyone tell me How much the fuel consumption is affected by tweeking the pump, as shown above please??
Also, my 200Tdi disco, will do 60mph easy with my 3500kg ifor on the back.(not fully loaded) Drops down to 50 ish on good hills.
Budgie:
IIRC my Disco went from about 30 mpg down to around 26-28 mph, depending on how I drove it.
It's down to around 23 mpg now the tyres have got bigger and the transfer box has been changed. :?
Porny:
--- Quote ---Any one tell me where and how to fit a boost gauge please
--- End quote ---
Very easily....
The easiest way to connect a boost gauge is between the turbo compressor housing and the actuator... if you look in the Land Rover workshop manuals, this is the method they also suggest.
You could also put a tapping into the inlet manifold, which would show 'true' pressure, but in all honesty just tapping into the actuator feed is more than enough for most people.
I have attached some pictures of my boost gauge fitted to my 90... which although a slightly different set-up to a Disco, uses the same principle.
Just bear in mind that not all boost gauges are calibrated correctly, and the reading should only be use 'as indication only'... if any body does want to check the accuracy of their boost gauge just drop me a pm.
--- Quote ---Can anyone tell me How much the fuel consumption is affected by tweaking the pump, as shown above please??
--- End quote ---
How long is a piece of string???
Fuel consumption above everything else comes down to you right foot.
With my injector pump tweaked, my fuel consumption hasn’t changed... unless I take advantage of the extra performance.
On average, I get about 26mpg... which is a mixture of towing, motorway work (my 110 will happily do 80 - 85mph) and general A roads.
Heavy towing or prolonged use of a heavy right foot sees this drop to anywhere down to 20mpg... but not that often.
In all honesty, not much worse than before... and possibly slightly better when driven economically!!!
This is from a 110" 200Tdi CSW.
At the end of the day, the pump mods are simply a mechanical adjustment and can be changed back... so a case of suck it and see...
--- Quote ---Also, my 200Tdi disco, will do 60mph easy with my 3500kg ifor on the back.(not fully loaded) Drops down to 50 ish on good hills.
--- End quote ---
On a private road....
My 110 will happily pull nearly 80mph with just over a car tonne of trailer on the back.... with 2 tonne on the back it will still pull 70mph easily on the flat, and drops to 60mph - at worst 50mph without a run up.
My 110" has usual pump mods, and runs 1 bar boost pressure.
Ian
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