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Idle issue: after injectors/Valve clearance and Raptor 150 install


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Here is what it is doing:

1) Takes 1 to 1.5 secs to start... prior to injectrs/V adj... as soon as it turned over it would start..

2) Rpm is around 740-750 with ever so slight bump to it... like its out of time or missing... it was very smooth prior to the install and had 780-800rpm.

3) I put it in reverse and it stalled (twice) when a bumped the throttle never done that before.

4) Noticeably more smoke (puff) at start up... and when i bump the throttle just sitting there it will puff smoke. Did not really do that before...

5) I was very careful installing injectors and crossover tubes they came with protective covers and i was very cautious when i put them in... injectors and tubes all snapped in and went together like they are suppose to...

6) When I was adjusting the valve clearance I used the alternator pulley to turn the engine over... I had the injectors out. The eng would not turn in direction it turns when running... the belt would just slip on pulley... So I was able to turn it in the other direction. Could I have hurt something by doing that? I did hear some clicking sounds coming from the lower engine back by the tranny it sounded to me... Posted Image

I need some expertise on this one!

- - - Updated - - -

Here is what it is doing:

1) Takes 1 to 1.5 secs to start... prior to injectrs/V adj... as soon as it turned over it would start..

2) Rpm is around 740-750 with ever so slight bump to it... like its out of time or missing... it was very smooth prior to the install and had 780-800rpm.

3) I put it in reverse and it stalled (twice) when a bumped the throttle never done that before.

4) Noticeably more smoke (puff) at start up... and when i bump the throttle just sitting there it will puff smoke. Did not really do that before...

5) I was very careful installing injectors and crossover tubes they came with protective covers and i was very cautious when i put them in... injectors and tubes all snapped in and went together like they are suppose to...

6) When I was adjusting the valve clearance I used the alternator pulley to turn the engine over... I had the injectors out. The eng would not turn in direction it turns when running... the belt would just slip on pulley... So I was able to turn it in the other direction. Could I have hurt something by doing that? I did hear some clicking sounds coming from the lower engine back by the tranny it sounded to me... Posted Image

I need some expertise on this one!

After wise counseling from this site and others I did some trouble shooting... APPS voltage reading and fuel system bleeding, CORRECT torque on High pressure fuel lines at the head and lift pump pressure adjustment. Results:

1) hard start has gone away for now...

2) rpm more consistent and steady @ 750rpm...

3) no more stall in reverse now...

4) normal smoke puff at start up...

5) rechecked valve lash on all of them and they are within limits...

The video is after all of your recommendations... turn sound up at the start of the vid (then down as the truck accels... air over cam get noisy) and when I am sitting there and later in the vid when i start it up you can here the idle pretty good... thanks for all your help! :thumb1:

http://www.youtube.com/watch?v=05bnRloNC7M

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