help with new engine running rough cam sensor?

[corymc]

I have a scanmaster and everything is fine acording to that.
just got a caspers camtool and going to try to work with that. when driving and hit the gas it has a severe hesitation then starts to take off slowly. could this be becuase the camsensor is not properly set? any thing else that could be causeing this? i replaced all sensors on rebuild except temp overide and O2 sensor.

 

[chrisgarrett]

Are you sure you set the cam sensor at 25* ATDC?

 

[corymc]

well im pretty sure but its on a bhj balancer and i heard those are off sometimes.

 

[chrisgarrett]

I'm curious does the BHJ have the marking all the way around?

 

[corymc]

no i dont think so im not around my car right now but it has one long line on it maybe somebody has a picture of one. i havent used the cam tool yet im gonna be able to get to my car on friday but i am just trying to get ideas on what do do when i get there. what it the camsensor is not @ 25 atdc how would i go about fixing that or being able to tell if its not.

 

[chrisgarrett]

As I said, I'm not familiar with the BHJ. The stock balancer has one marking, which when aligned with the "0" on the plastic indicator is TDC. You would then continue to rotate the engine to 25* ATDC. Now the problem is that you might be on the correct balancer mark and be 180* out of sync. In order to insure that you are at TDC, remove the #1 spark plug. Stick your finger in the spark plug hole and rotate the engine cw. Whenm you feel and hear a strong blast of air from the spark plug hole, and aligne the mark with the "0", you are at TDC.
Go here and click on "Tech pictures/instructions" and then click on cam sensor install.
Vortex Turbo Buick Performance