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Old 07-23-2011, 06:33 PM
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Default 1999 4.3 Engine timing

Had to change int man gaskets and inj spider. Car ran like poop because I didnt get the dist back in correctly. Didn't realize the dist spun. tried to adjust position of rotor shaft. now car doesn't start.

Got engine to TDC on #1 cyl, when i put dist back in, she wont line up with the position, and when I can get the rotor to line up, the dist will not set down. I think I need to adjust the oil pump drive so the dist will set correctly. Anyone know how to do that? Seems the drive does not wish to turn and I am afraid of breaking something. Any help greatly appreciated...
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Old 07-27-2011, 05:17 PM
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That oil pump drive in the engine should turn very free with a long standard screwdriver. If you put a screwdrive in it and it doesn't turn, your in deep dip. Something is jamming it & that problem has to be solved before anything else. I took a huge outside lawn cusion and put it on top of the engine & lay down with a flashlight and screwdriver looking into the distrib hole to adjust the pump drive. Did you mark where #1 is somewhere on the engine so you'll know where it is with the cap off?
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Old 07-27-2011, 08:27 PM
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I used this method and hit it first time out of the box.

Timing a GM 5.0,5.7 and 4.3 (Vortec) - Truck Mod Central
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Old 07-27-2011, 08:53 PM
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Magmotor hit the nail on the head. Good response.

Quote:
Originally Posted by kevlar974 View Post
I used this method and hit it first time out of the box.

Timing a GM 5.0,5.7 and 4.3 (Vortec) - Truck Mod Central
Same thing is in our Tech Article section.
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Old 07-28-2011, 06:38 PM
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That's where I found it here before just had that link handy
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Old 07-28-2011, 06:38 PM
 
 
 
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1999, 2000, 43, 43enginetiming, adjust, blazer, chevy, mark, marks, motor, problems, reset, set, timing, timming


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