In Spec.?

[Caman96]

Are highlighted values in spec. here. Was at 1100 rpm.

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[Schurkey]

Are you idling at 1100 RPM, or are you checking the cam offset with the engine RPM deliberately raised to 1100?

Cam offset is close, but not actually within spec.

Timing advance seems reasonable.

 

[Caman96]

Are you idling at 1100 RPM, or are you checking the cam offset with the engine RPM deliberately raised to 1100?

Cam offset is close, but not actually within spec.

Timing advance seems reasonable.

Was checking cam offset.

 

[someotherguy]

Was checking cam offset.

Like he said, you're close. If you can get it closer to zero that would be better. Within +/- 2 degrees from zero is what you're shooting for.

Richard

 

[Caman96]

Just wondering because if I’m not within 0°+/-2°, will I have to reset Distributor, or just loosen and a slight clockwise turn would fix.

 

[Schurkey]

Loosen and turn. Won't take much. I won't promise which direction it'll need to go. That info should be in the service manual, though.

 

[Caman96]

Found a few “online” if +/turn clockwise and -/counterclockwise. Just hoping I don’t have to restab.
Truck runs great other than it idles at 670-680

 

[Schurkey]

You're 1/2 of a degree away from spec.

I'm not sure I'd bother correcting it.

Re-stabbing the distributor seems...unlikely...unless it's absolutely impossible to turn it the correct direction because it's touching something else and won't move that way. In which case...I'm not sure I'd bother correcting it.

When I got my '97, the scan tool showed it was 29 degrees "off". THAT was worth correcting. Didn't run any different afterward, though.

 

[Spareparts]

I have discovered mine will run just the same at about + or - about 15 degrees. Runs ok but starting becomes a issue. I try to get it close to 0 as i can.

 

[Caman96]

You're 1/2 of a degree away from spec.

I'm not sure I'd bother correcting it.

Re-stabbing the distributor seems...unlikely...unless it's absolutely impossible to turn it the correct direction because it's touching something else and won't move that way. In which case...I'm not sure I'd bother correcting it.

When I got my '97, the scan tool showed it was 29 degrees "off". THAT was worth correcting. Didn't run any different afterward, though.

That’s why I’m asking and wondering if it’s necessary and what benefits reducing to 0°?