[Vwdiesel] Fwd: Hydraulic Lifter Question

[James Hansen]

> 
> I am having a little trouble timing it right - I left the IP loose, and tried to get it so it 
> would start to miss/stumble when I pushed the cold start in, but it would immediately die when I 
> puched it in, even when pretty far advanced (at least as far as I could push it w/out tweaking 
> the injector lines), and even when hot. Do I just need to advance it more, or is my IP on the 
> way out? No smoke at all, really.


Since you haven't timed the engine, how would you draw that conclusion?
Setting it so it doesn't run when you push the cold start in is 
DEFINITELY not how to time it.
It is not a distributor on a gasser, it has to be set with a degree of 
precision, not wheeled around until it idles.

Go back to the basics. SET the timing to 1.00mm
Dunno how?
you will need the manual, some tools, and some learning time.
Pump timing is set with a dial indicator to measure pump plunger 
movement at TDC, which should be at or near 1.00 mm... and that's at or 
near in the machinist's sense of precision.

Set engine to tdc as indicated by flywheel mark.
Loosen t-belt sprocket on camshaft, insert cam lock plate, retighten the 
cam sprocket. Now it's for sure on TDC as well as the piston. remove lock.
remove timing plug from center of fuel distributor.
install dial indicator holder, insert dial indicator, set so it is 
preloaded a bit... so it contacts the plunger.

roll the engine back, note the dial position when it stops moving, roll 
it back to tdc as indicated by the flywheel pointer, note the dial 
position.  the difference is what you are after.

To change timing, loosen the bolts you are familiar with, move the pump. 
  THe injector lines have to be loose. If you preload them, then run it 
like that, they will stress fracture eventually.

If you can't adjust it far enough, you are off one cog on the injection 
pump sprocket.

To retest timing, always roll the motor back a quarter turn or so then 
come back to tdc.  If you go past tdc, go back a quarter turn and repeat 
etc.

Keep doing this until you get it right.  There is no replacement for 
doing this one simple task EXACTLY CORRECT.  then you know.  then if the 
pump doesn't work, you can ask a question that starts off with "I just 
set my injection pump to 1.00mm, and it still runs poorly.  Is it on the 
way out?"  :-)
-James