2000 K3500 4x4 CC DRW

[Christian Steffen]

Good luck! Keep us posted. Don't forget to take it easy on it for the first few hundred miles, then change the oil.

 

[cool_as_crap]

All back together, runs and drives!

Though the timing is way off (24° advanced).
I followed the sticky on how to install the dist. but looks like i'm off.

From what I've read I need to rotate the gear counter clockwise and reinstall.

Edit: or do i need to do a crank relearn?

 

[Christian Steffen]

All back together, runs and drives!

Though the timing is way off (24° advanced).
I followed the sticky on how to install the dist. but looks like i'm off.

From what I've read I need to rotate the gear counter clockwise and reinstall.

Edit: or do i need to do a crank relearn?

Crank relearn would throw a code if it was an issue, but its not a bad idea to do anyway. So the cmp retard is reading 24 degrees? Or total spark advance?

Glad its running!

 

[cool_as_crap]

Not sure of the difference, this is what dash command gives me at about 1k rev. I'll try redoing the dist, maybe I wasn't at TDC as much as I thought I was

You must be registered for see images attach

 

[Christian Steffen]

Not sure of the difference, this is what dash command gives me at about 1k rev. I'll try redoing the dist, maybe I wasn't at TDC as much as I thought I was

You must be registered for see images attach

That looks like just normal spark advance. You need to find a PID for cam position retard. Car gauge pro is capable of reading it, but its kind of a pain to run compared to something like torque pro. I wouldn't pull it again until you get a way to read it.

 

[cool_as_crap]

That looks like just normal spark advance. You need to find a PID for cam position retard. Car gauge pro is capable of reading it, but its kind of a pain to run compared to something like torque pro. I wouldn't pull it again until you get a way to read it.

Cool thanks for the tip, I'm checking out torque pro now to find cmp.

 

[cool_as_crap]

http://www.tahoeyukonforum.com/thre...ard-offset-adjustment-using-torque-app.88572/

I hope that's correct, I think I got it!

 

[cool_as_crap]

You must be registered for see images attach

 

[Mangonesailor]

That spark advance is typical for the black box ECM.

Dash command is capable of displaying CMP retard. You can see it if you added a gauge to the dash board or the data grid. I've been looking for a way to see this though with torque. That just leaves IAC counts as the last thing that I need Dash Command for... besides the logging capability of it (which trumphs torque's online viewer).

You want to verify good crank/cam relationship at above 1700 RPM though. 1500rpm+ is when it is checked by the ECM... so that's the speed it starts to matter. It CAN be way more than just 1* off and be fine, as long as the relationship is taught to the ECM via a crank relearn. I know this because my offset was at -40* after a relearn until I moved the dizzy.

Good job with the rebuild. So you've just got a cam in there with more lift now? I'm curious how it runs. Youtube video?

 

[cool_as_crap]

That spark advance is typical for the black box ECM.

Dash command is capable of displaying CMP retard. You can see it if you added a gauge to the dash board or the data grid. I've been looking for a way to see this though with torque. That just leaves IAC counts as the last thing that I need Dash Command for... besides the logging capability of it (which trumphs torque's online viewer).

You want to verify good crank/cam relationship at above 1700 RPM though. 1500rpm+ is when it is checked by the ECM... so that's the speed it starts to matter. It CAN be way more than just 1* off and be fine, as long as the relationship is taught to the ECM via a crank relearn. I know this because my offset was at -40* after a relearn until I moved the dizzy.

Good job with the rebuild. So you've just got a cam in there with more lift now? I'm curious how it runs. Youtube video?

Should I do a crank relearn? It seems to idle ok, given it's still un-tuned.
Thanks for the info, i had no idea there was so much involved in setting the timing.

I'll see about getting a video today after work.
I'm still in shock that I finally finished the build and it's out of my garage.