Replacing SCV Valves Toyota D4D
This is a video to show you how simple it is to replace damaged SCV valves on a Toyota D4D engine.
Damaged valves can cause loss of power from the engine, which was my case. In the Northern Europe, the diesel in the wintertime is often dry, so it wont oil the fuelpump as much as requested. Thats usually the main reason for trouble with the valves.
First, remove the expansion tank, and then screw loose the valves. Unpluck the cables, tap them out with out with a screwdriver, oil the o-rings on the new ones, and put them gently in, then knock them carefully at the top with a hammer to get them in the last bit.
( Yes, this is a video me and my dad made. It's not very professionally filmed, and we were a bit clumsy, but lets hope it helps you out :) )