EDI Engine timing
#1
05-07-2007, 10:55 AM
EDI Engine timing
I need to verify the how to time the distributor to the crank on aEDI 4.3L engine.
Engine has been rotated with distributor removed.
#1 piston at top dead center.
Drop the distributor in so the rotor points to #1 piston, or #1 on distributor cap. The EDI cap is not like a typical distributor cap. #1 wire connects between #3 & #5 on the drivers side, yet the rotor makes contact on the opposite side of the distributor.
Which way does the rotor need to point when it is fully seated? To the piston or to the pick up on the cap?
Engine has been rotated with distributor removed.
#1 piston at top dead center.
Drop the distributor in so the rotor points to #1 piston, or #1 on distributor cap. The EDI cap is not like a typical distributor cap. #1 wire connects between #3 & #5 on the drivers side, yet the rotor makes contact on the opposite side of the distributor.
Which way does the rotor need to point when it is fully seated? To the piston or to the pick up on the cap?
#2
05-07-2007, 12:29 PM
RE: EDI Engine timing
I'm assuming this is for your 2000...
Anyway, here goes:
I hope that was the information you were looking for...! Good luck!
Anyway, here goes:
INSTALLATION PROCEDURE 2
IMPORTANT: Rotate the number (1) cylinder to Top Dead Center (TDC) of the compression stroke. The engine front cover has 2 alignment tabs and the crankshaft balancer has 2 alignment marks (spaced 90 degrees apart) which are used for positioning number 1 piston at top dead center (TDC). With the piston on the compression stroke and at top dead center, the crankshaft balancer alignment mark (1) must align with the engine front cover tab (2) and the crankshaft balancer alignment mark (4) must align with the engine front cover tab (3).
1. Rotate the crankshaft balancer clockwise until the alignment marks on the crankshaft balancer are aligned with the tabs on the engine front cover and the number (1) piston is at top dead center of the compression stroke.
2. Align white paint mark on the bottom stem of the distributor, and the pre-drilled indent hole in the bottom of the gear (3).
3. With the gear in this position, the rotor segment should be positioned as shown for a V6 engine (1) or V8 engine (2).
* The alignment will not be exact.
* If the driven gear is installed incorrectly, the dimple will be approximately 180 degrees opposite of the rotor segment when it is installed in the distributor.
4. Using a long screw driver, align the oil pump drive shaft to the drive tab of the distributor.
5. Guide the distributor into the engine. Ensure that the spark plug towers are perpendicular to the centerline of the engine.
6. Once the distributor is fully seated, the rotor segment should be aligned with the pointer cast into the distributor base.
* This pointer may have a 6 cast into it, indicating that the distributor is to be used on a 6 cylinder engine or a 8 cast into it, indicating that the distributor is to be used on a 8 cylinder engine.
* If the rotor segment does not come within a few degrees of the pointer, the gear mesh between the distributor and the camshaft may be off a tooth or more.
* If this is the case, repeat the procedure again in order to achieve proper alignment.
NOTE: Refer to Fastener Notice in Service Precautions.
7. Install the distributor mounting clamp bolt. Tighten the distributor clamp bolt to 25 Nm (18 lb ft).
8. Install the distributor cap.
9. Install two NEW distributor cap screws. Tighten the screws to 2.4 Nm (21 lb in).
10. Install the electrical connector to the distributor.
11. Install the spark plug wires to the distributor cap.
12. Install the ignition coil wire. The wire must not touch anything like the dip stick, rubbing will make a ground/short after time of use.
IMPORTANT: Rotate the number (1) cylinder to Top Dead Center (TDC) of the compression stroke. The engine front cover has 2 alignment tabs and the crankshaft balancer has 2 alignment marks (spaced 90 degrees apart) which are used for positioning number 1 piston at top dead center (TDC). With the piston on the compression stroke and at top dead center, the crankshaft balancer alignment mark (1) must align with the engine front cover tab (2) and the crankshaft balancer alignment mark (4) must align with the engine front cover tab (3).
1. Rotate the crankshaft balancer clockwise until the alignment marks on the crankshaft balancer are aligned with the tabs on the engine front cover and the number (1) piston is at top dead center of the compression stroke.
2. Align white paint mark on the bottom stem of the distributor, and the pre-drilled indent hole in the bottom of the gear (3).
3. With the gear in this position, the rotor segment should be positioned as shown for a V6 engine (1) or V8 engine (2).
* The alignment will not be exact.
* If the driven gear is installed incorrectly, the dimple will be approximately 180 degrees opposite of the rotor segment when it is installed in the distributor.
4. Using a long screw driver, align the oil pump drive shaft to the drive tab of the distributor.
5. Guide the distributor into the engine. Ensure that the spark plug towers are perpendicular to the centerline of the engine.
6. Once the distributor is fully seated, the rotor segment should be aligned with the pointer cast into the distributor base.
* This pointer may have a 6 cast into it, indicating that the distributor is to be used on a 6 cylinder engine or a 8 cast into it, indicating that the distributor is to be used on a 8 cylinder engine.
* If the rotor segment does not come within a few degrees of the pointer, the gear mesh between the distributor and the camshaft may be off a tooth or more.
* If this is the case, repeat the procedure again in order to achieve proper alignment.
NOTE: Refer to Fastener Notice in Service Precautions.
7. Install the distributor mounting clamp bolt. Tighten the distributor clamp bolt to 25 Nm (18 lb ft).
8. Install the distributor cap.
9. Install two NEW distributor cap screws. Tighten the screws to 2.4 Nm (21 lb in).
10. Install the electrical connector to the distributor.
11. Install the spark plug wires to the distributor cap.
12. Install the ignition coil wire. The wire must not touch anything like the dip stick, rubbing will make a ground/short after time of use.
#3
05-07-2007, 01:08 PM
RE: EDI Engine timing
Yep for the 2000.
And YES that was exactly what I was looking for.
THANKS!!!!!!
My Haynes manual doesn't go into the EDI timing too well. That is a much better explaination.
I'll update my other thread on what I have found, etc.
https://blazerforum.com/m_77076/tm.htm
And YES that was exactly what I was looking for.
THANKS!!!!!!
My Haynes manual doesn't go into the EDI timing too well. That is a much better explaination.
I'll update my other thread on what I have found, etc.
https://blazerforum.com/m_77076/tm.htm
#7
08-26-2008, 08:36 PM
RE: EDI Engine timing
that is also the same way to do the 95-98 swartl, just found this post after i posted a question a few minutes ago lol thanks man
#8
11-10-2008, 12:34 AM
RE: EDI Engine timing
Excellent EDI post. As many of you know I've redone my engine quite extensively... and she's been giving me trouble starting. Chiltons doesn't nearly go into this much detail. This helps out immensely, and hopefully tomorrow I can get her to crank!
