Installation – COMP Cams 9673T9 LS Timing Sets User Manual

Page 2

COMP Cams

3406 Democrat Rd.

Memphis, TN 38118

Phone: 901.795.2400

Part #COMP4-134

Revised 6/24/13

Toll Free: 1.800.999.0853
www.compcams.com

2. Camshaft positioning sensor reluctor is correct − There are three styles of cam position

sensors, 1X on early Gen IV engines and 4X on later version Gen IV engines which can not
be interchanged. Note: Gen III (LS1/LS6) engines will not be affected by camshaft timing
gear, as they use a rear camshaft sensor built into the camshaft.

Installation:

1. Prepare for installation disassembling the front of your LS engine by removing the water

pump, timing cover. Then roll your engine over until your engine is at TDC using the
markings on your current timing set. This can easily be done by using COMP Cams® LS
crank turning socket #4914.

2. Remove loosen or remove the oil pan, and remove the oil pump by first carefully removing

the oil pickup tube bolt, ensuring it does not drop into your oil pan. Next, remove the four
bolts holing the oil pump to the engine block and remove the oil pump assembly.

3. Loosen your camshaft bolt(s) and remove the camshaft timing gear.

4. Loosen your rocker arms to allow the camshaft to rotate freely. Rotate 360 degrees to capture

the lifters in the guides.

5. Using a proper puller, remove the existing crank gear and oil pump drive.

6. Make sure to clean the mounting surfaces on the clock and your new COMP Cams® timing

sets, failure to do so may reduce chain and bearing life

7. Select the desired crankshaft keyway and install the crankshaft sprocket until fully seated,

using a sleeve to protect the sprocket. Make sure your corresponding timing mark is correct
and pointing in the 12:00 position. Use a marker to mark your selected timing mark as this
may help you remember later which of the timing marks is the one you have selected to use.

Notes: There are various demarcations depending on which timing set you have selected to
use. (Refer to pages 4-5 to see your specific timing chain options.)

This manual is related to the following products:

9673T3 LS Timing Sets 9672T9 LS Timing Sets 9672T3 LS Timing Sets 9667T3 LS Timing Sets 9658T9 LS Timing Sets 9658T3 LS Timing Sets 9172KT LS Timing Sets 9167KT LS Timing Sets 9158KT LS Timing Sets 7107 LS Timing Sets 7106-5 LS Timing Sets 7106 LS Timing Sets 7105 LS Timing Sets 7102 LS Timing Sets 3173KT LS Timing Sets 3172KT LS Timing Sets 3167KT LS Timing Sets 3158KT LS Timing Sets 3154 LS Timing Sets