Well.... it seemed to go OK. not too much smoke until really pulling up a steep hill in 5th (I had to try) - changed down to 4th and it poootled up nicely..... this is a hill, I have always had to change down to 3rd to get up before, so I can safely say an improvement has been had.
Did notice my water overheat warning tripped in a couple of times on the way back, although temp gauge didnt move, but then again they are notorious for not moving and then scootling into the red. Something to watch, methinks.
Couple of pics to follow, however things to watch out for.....
1) The original pin may not just "lift out". sometimes it needs a bit of force to get the guide pin to jump over the lip on the bottom of the boost pin.
2) I found a variety of screws on the top, and they were TIGHT! flat bladed screwdriver, T30 & T20 bits required as well if you have the EGR fitting as mentioned above.
3) Marking the lid is useful, but not necessary. What is more important is verifying the orientation of the original pin to the top cover, before removal
4) I found that the guide pin inside the pump housing is at the front of the guide pin hole (see pic) and it is only necessary to ensure the new pin cut out is facing this way. All this marking seems to be unnecessary, as the diaphragm and washers can be in any position (they are round). There are small dots on the washers, but these can be any position, albeit the guides state to line the bottom one up with the cut out in the boost pin.
5) Make sure you mark the gearwheel at the bottom of the access area (see red dot on LHS) so that if it needs to be moved (for smoke adjustment) you have a reference point.
6) The plastic washer mentioned in the guide, but not shown, as at the top of the boost pin and loose.
7) Obvious point, but well worth remembering... ENSURE THE AREA IS KEPT SCRUPULOUSLY CLEAN.