hi guy's i have now changed the pumps over,now i need to time the new pump,i have bought dti tool and timing tool as instructed by wammer's and seanmull,but haven't got a clue what to do with them,hopefully wammer's or sean will put me in the picture,or any body else. cheer's pat.
I'll have a stab at writing some instructions as I've just been through this myself....
Remove the inlet manifold etc to gain access to the pump.
Turn the engine over clockwise by hand (22mm ring spanner on bottom pulley) until you can see the 1st lobe of the camshaft is just before vertical (looking through the oil filler).
Remove the bolt from the centre of the pump (in the middle of the fuel pipes) and put the dti tool in the centre of the pump. Set the dti at about mid stroke.
Turn the engine over whilst watching the dti and zero the dti at the lowest point. (On mine this point corresponded to the timing pin 8mm section dropping in a hole in the flywheel).
Slowly turn the engine clockwise until the 12mm section of the pin drops into a hole in the flywheel. On the way round it might seem to drop into or hit other obstructions (holes or bolt heads?) but it is the point at which the 12mm diameter drops into the hole that you want. I would recommend having a practice and finding this point first before doing the actual measurement.
If you overshoot the hole, go back too far and come at it again in the clockwise direction (remove backlash).
The dti reading that you are after is 0.9 (I think according to the book) but I found starting to be difficult when set to this so I ended up at 1mm as recommended by ?? (cant remember - sorry) in another post.
If adjustments are required, the diesel pipes should be slackened first to avoid them getting stressed. The 2 bolts holding the pump to the engine should be slackened and also 1 at the bottom that is a support for the back of the pump. Don't slacken the bolts too much, as this can result in false readings.
When making adjustments in order to avoid backlash, always make the last movement of the pump towards the engine.
As I learned - don't forget to remove the spanner from the bottom pulley!!
Have I forgotten anything?