Pump Orientation

[Mark(The Miser)UK]

On another forum someone found themselves unable to get pump to advance enough so it was decided that it was probably a tooth out on the sprocket.
However the following thought struck me...

 :idea: It would be nice to retard pump by 10 to 20 degrees to make
glowplug access easier and as well;  #2 injector is hard to
access with a long [but otherwise convenient] box spanner as
it fouls the 'spaceship'...
How upright does the pump need to be?... Not critical I'm
thinking; as the Vanagon insert wouldn't work....
 :idea:

[fspGTD]

The injection pump can be moved a tooth to increase injector line clearance to the LDA device no problem, as long as there is enough room allowed in the slotted mounting adjusters.  I did this on my GTD because things were very tight between the LDA and the large 2-spring injector at numer 2 cylinder and I wanted more access space to that injector.  Doing this changes the range of timing adjustment that is available and also means that at TDC the injection pump locking pin will no longer be aligned with it's hole.

Although making a small change in pump orientation (like 1 tooth) shouldn't matter, I think that there may be a problem with making very drastic changes in pump orientation, because the pump seems to be built to bleeding air bubbles out through the fuel return hole.  If the fuel return hole were no longer at the top, an air bubble may become trapped inside the pump, which could adversely effect pump operation.

[Mark(The Miser)UK]

Did this change help with the #2 glowplug access?
Thanks

Now I think about it; my coldstart lever would now be accessable too would it not? I've not used it in 4 years as the PO had never replaced the wire to operate it. I've only pushed it with a screwdriver when I renewed my head and had trouble starting...made no percievable diference; but that was a problem with the new hydro. lifters.
Not needed it since; unless it would have helped when down to 3 glowplugs

[fspGTD]

Probably will help access to the glow plugs some, but depending how well you can get your hand and wrenches to places, you may want to remove the fuel hardlines first.  My main reason for doing it was to improve access to my #2 injector (which was made much tighter after installing the taller, 2-stage injectors.  I can't remember if I previously had to remove the LDA cover or not, but I do remember it was just really tight.)