Question about 2000 Chevrolet Blazer

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Timing on a 2000 chevy s10 blazer 4.3. Replaced bent push rod and valve, now can't find any specific guidance on how timing is to be set.

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The timing is not adjustable. There are two lines on the harmonic balancer, the first line should line up with the mark on the timing cover, towards the bottom, on the driver side of the engine, the second line should line up with an arrow on the timing cover above the first mark. You'll need to have the rotor in the distributor lined up with the "6" on the distributor housing. You may need a long screw driver to turn the oil pump shaft to get the distributor lined up right.

Posted on Apr 27, 2010

  • grctl May 26, 2010

    there are two marks correct and only one v-notch in the plastic timing cover it is not at the bottom of the engine its at the driver side top of the timing cover.

    i am on a 3rd engine on a 1999 never had a issue with getting the timing set and this engine will not start on the first timing mark on the harmonic balancer it will start on the second mark.

    i took it out for a spin ran good the second day i took it out the check engine light came on and the acceleration is slow and the timeing is retarded i think a scan tool said 17 degrees now you clear the codes start the engine the computer advances it but does not accelerate in drive corectly will rev up in netural...... whats this timing advance wire i keep reading about in peoples responces or does the x engines have this wire tan and black the distributer wire on it is a 3 wire do you unplug that and try to start it how can you get it to zero or back to the first timing mark to zero engine has never been apart just pulled and swapped only has 60,000 miles has good injectors any thoughts on the throttle body and the 2 sensors there.... any help e-mail me at grctl@yahoo.com posted 5-26-10

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