misses???

[jgueld]

Setup: 94 golf diesel 1.9 td., new air & fuel filters, new Tbelt & sprokets
           Fine starting, ideling, powering

Problem: between 1800 and 2200 rpm, engine seems to miss (bucks)
              Keeping the fast idel cable out, reduces/eliminates misses.

Question: What's the source of the misses, Injectors/pump, turbo??

[fatmobile]

I take it this didn't happen before the new timing belt.
 I always blame a miss in the midrange on bad cam timing.
 Doesn't mean I'm always right but it has always gone away when I reset the cam timing.
 It doesn't have to be off by much.
 It's usually a noticable miss and like you said, it feels more like it bucks.
 I've only messed with the 1.6TD ... I pull the valve cover, put the cam locker in and turn the engine with a socket on the crank bolt.
  I turn the engine one way, till the cam locker stops it. I don't pull very hard, just enough to move it till it stops. Then I look through the timing hole ... maybe even make a mark.
 Then I turn the engine the other way ... look and maybe make a mark.
 If the flywheel timing mark is centered between these two marks, I'm good to go.
 I'm GUESSING yours will be off by about 1/4" to 1/2".

[jgueld]

thanks for the suggestion fatmobile.

The misses were there prior to the t-belt and nothing changed.

I'm thinking it might be happening just before the turbo kicks in, but I'm not sure and even if I was I still wouldn't know what the cause was.