1996 chevy truck i have no idea on how to set my timing
If the distributor has been pulled, it needs to be reinstalled as to fire on #1 TDC, To drop this distributor,
1) bring #1 piston to Top Dead Center (TDC) with the timing mark on the Harmonic balancer on the zero (or V groove),
2) Next the dist. will have a indentation (little dimple) at the very bottom of the shaft, while out of the motor, align that dimple with the white line on the oil pump flange (the ring that nestles on the oil pump) the white line should be vertical.
3) Now when you drop the dist. down to align with the cam, the rotor should rotate to a number stamped on the dist. base. Such as a # 8 for V8 or #6 for V6. This should now be setting correctly to fire on #1 while TDC. You'll have to be close on meshing the cam tooth because the distributor can really only fit against the back of the intake housing perpendicular.
4) Once you have this done slightly tighten the hold down clamp. The chances of it being dead on for timing are slim, so the timing will have to be adjusted with a programmable tech II scanner. Timing is not adjustable for this motor manually.
*Contrary to most people statements, There is no tan wire with a white tracer behind the glove box on this year (96-2000) This was discontinued after 1995, The only thing you accomplish by rotating the dist. is throwing the injectors out of wack because they are read by the CPS (Crank positioning sensor in reference to the Cam (Cam positioning Sensor) .Hope this helps.
Posted on Apr 25, 2009
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Posted on Jan 02, 2017
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Are you replacing the timing chain? The circle marks on the timing gears are to be lined up vertically while both are positioned towards each other. Do this with engine at top dead center on #1 cylinder if I remember right. Been a while but I can check if you still need to time this.
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