set timing on 2001 4.3 engine !! - S-10 Forum
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set timing on 2001 4.3 engine !!

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Old 04-07-2013, 04:02 PM   #1
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Thumbs up set timing on 2001 4.3 engine !!

IGNITION TIMING

CAMSHAFT RETARD OFFSET
DISTRIBUTOR CAN BE ADJUSTED TO PREVENT CROSSFIRE .

Camshaft retard offset reading will not be accurate with engine speed less than 1000 rpm.

#1 With ignition off, connect scan tool to Data Link Connector(DLC) . Start engine & allow it to reach normal operating temperarature .

#2 Increase engine speed to more then 1000 rpm .Using scan tool , monitor CAM RETARD OFFSET. If camshaft retard indicates Zero degrees. distributor is properly adjusted . Procedure is complete. If camshaft retard is not zero degrees ! must adjusted !!!!

Adjustment of timing!!

#1 Turn off ignition off, Slightly loosen distributor hold-down bolt start engine, increase speed to more than 1000 RPM.

#2 Using scan tool, monitor CAM RETARD OFFSET. To adjust for a negative reading, rotate distributor counterclockwise. to adjust for a positive reading. rotate distributor clockwise.

#3 Continue to adjust as necessary until zero degrees is attained. Turn ignition off. & tighten distributor hold-down bolt to 18 ft lbs Start engine. increase engine speed to more than 1000 rpm. using scan tool, verify camshaft retard offset adjustment!!

GOOD LUCK!!!
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