HDJ81 boost compensator adjustment

[jcolvin]

Enjoy! I'd been looking for this info for a while. AFAIK the land rover and HDJ have the same bosch pump.

http://www.stonefisk.com/doc-arc/def_man/ThermoGuard_Tdi_Tuning_Rev.2.pdf

 

[canucksafari]

Very similar to the Zexel (Bosch VE) IP in the Patrols as well. The 1HDT IP has a larger plunger. It is a common IP mod to take this plunger and install it in the Zexel pump to deliver more fuel.