1993 Range Rover Classic 200tdi- boost pin and pump adjustment

Cheers from across the pond. I have a 1993 Range Rover Classic 200tdi that I recently imported from Spain. The engine is healthy and recently had a full rebuild <2000 miles ago. I just installed a boost pin and was getting a lot of black smoke at full throttle so I wound down the main power screw on the back of the pump by a full turn (counterclockwise). A couple of questions.

1. I did not remove the metal locking collar on the screw, but instead loosened the nut so it would turn freely. Is that ok?
2. Does turning the main power screw effect idle? I think my idle dropped below 500 and is very low upon startup.
3. How much black smoke is ok. I am getting a little black smoke at full acceleration, but power is nowhere near it was before adjusting the screw.
4. Going to install an uprated intercooler. Will I have to re-tweak the fueling after I install it?

Thanks

Hi welcome
sounds cool any pics
have you seen this
https://www.landyzone.co.uk/land-rover/ricks-200tdi-tuning-guide.254178/
I’ve recently fitted a 200tdi engine in my series 3 but removed the turbo and Intercooler
Hopefully someone be along who knows about these engines https://www.landyzone.co.uk/land-rover/ricks-200tdi-tuning-guide.254178/

Yes that is a great post. I bookmarked it and reference it regularly. Here is a link from the company I bought it from.

https://www.cwclassics.com/inventory/1993-land-rover-range-rover-classic-5

That looks a minter, low miles too a very good buy there JD
http://www.glencoyne.co.uk/tdipage1.htm
This is a useful,site but they do recommend only minimal fractional turns of screw
my tickover is 795 rpm tested with a cheap digital tacho but sounds a bit fast
I have minimal smoke but think I should have a bit more power but not adjusted anything yet
Can’t really drive it anywhere now with th lockdowns going on http://www.glencoyne.co.uk/tdipage1.htm

steve2286w said:

That looks a minter, low miles too a very good buy there JD
http://www.glencoyne.co.uk/tdipage1.htm
This is a useful,site but they do recommend only minimal fractional turns of screw
my tickover is 795 rpm tested with a cheap digital tacho but sounds a bit fast
I have minimal smoke but think I should have a bit more power but not adjusted anything yet
Can’t really drive it anywhere now with th lockdowns going on

Click to expand...

Stick the turbo back on, will transform the car.
Got 200tdi lump in my S2, best thing ever, its as worn out as can be, but still drives well.
The tdi replaced the original 2.0 diesel, now that was slow beyond belief!