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The larger the wheel diameter, the more accurately you canread it, since there will be a greater distance between thedegree points.BEGINNING TO DEGREE YOUR CAM1. Be sure that the timing set is installed with the camand crank gear aligned properly per the manufacturer’sspecifications.you’re ready to install and set the piston stop.Turn the crankshaft to lower the piston enough in thecylinder to move the degree wheel 15-20 degrees. Withthe rocker arms removed, screw in the piston stop untilit contacts the piston. (Figure 2) Turn the engine inthe same direction until the piston comes back up and2. Remove the rocker arms.MOUNTING THE DEGREE WHEEL1. Attach the degree wheel (using the supplied aluminumbushings if necessary to center the degree wheel) tothe crank snout or balancer. In our example, we use thecrank snout. (Figure 1)2. Attach the pointer from your kit firmly to the engine block.(Figure 1)Figure 2Figure 1FINDING TOP DEAD CENTER (TDC)1. Rotate the crankshaft until you get number one piston inapproximate TDC position. Next, adjust your pointer tothe zero TDC position on the degree wheel. (Figure 1)2. It is essential at this point that you have some means ofrotating the crank that will not interfere with the degreewheel. The crank can be rotated from either the front orthe flywheel end. The greater the leverage, the smootheryou can rotate the crank for timing checks. (Do not usethe starter for turning the engine while degreeing).3. Now that the Degree Wheel has been set at approximateTDC, and a means for turning the crank provided,touches the piston stop. Make a note of what degree thepointer is on the degree wheel. Turn the engine in theopposite direction until the piston comes back up andtouches the piston stop. Make a note of what degreethe pointer is on the degree wheel. Add these two numberstogether then divide them in half. Example: Let’ssay that the stop points are 16° in one direction and 20°in the opposite direction. The total would be 36 degrees.This figure divided in half would be 18 degrees. Therefore18 degrees from either of your stop points is true topdead center. Now either move the pointer to align withthe 18 degree mark on the degree wheel, or carefullyloosen the degree wheel (without disturbing the positionof the crankshaft) and move the degree wheel to the 18degree mark, making sure that the piston is still againstthe stop. Now turn the engine in the opposite directionuntil the piston comes back up and touches the stop.The pointer should be aligned with the 18 degree markon the other side of the TDC mark. If this is correct, thenyou have found true top dead center. It is best to repeatthis to make sure that nothing has moved. If you didn’tget 18°, as per our example, you will need to repeat theprocedure until you get the same amount of degrees onboth sides of TDC. Remove your piston stop and youare ready to properly degree your cam.5/10 2803
MOUNTING THE DIAL INDICATOR1. The Dial Indicator mount in this kit is designed to attachinto a valve cover bolt hole. Remove any obstructionsthat would hinder this mounting. We will be checkingcam timing so the rocker arms must be removed. Beabsolutely certain that you use the correct type of lifterfor the camshaft that is being degreed. This meansa flat tappet for a mechanical or hydraulic cam (donot use a hydraulic lifter, as the plunger can move),or a mechanical roller tappet for a roller camshaft.You should also take particular care to clean off anyexcessive oil, grease, or lubricant from the cam lobethat you are degreeing. Even the slight interference ofsuch foreign matter can alter the readings that yourdial indicator will show.Figure 3 Figure 42. A pushrod is needed to be used as an extension of thedial indicator. The indicator will center in the oil hole of thepushrod tip. (Figure 3) On engines with pushrods that don’thave oil holes i.e., FE Series Ford and Chrysler, you willneed to obtain a pushrod with an oil hole or cup end forchecking purposes or use a dial indicator extension.Install the pushrod in the intake lifter of cylinder No. 1and mount the dial indicator. It is important that the indicatorplunger be aligned as closely as possible with thelifter being measured. Any substantial angle betweenthe axis of the plunger and the lifter will introduce geometricalerrors into the lift readings. (Figure 4)CAUTION: Be sure that the indicator is supportedsolidly. Any looseness will introduce major errors inmeasurement.3. With the Degree Wheel and its pointer accurately set,and the Dial Indicator solidly in place, rotate the crankshaftuntil the cam’s base circle is under the lifter for thecam lobe being measured (usually starting with NumberOne intake). (Figure 4) Set the dial indicator to zero atthis point. Be sure the Dial Indicator is pre-loaded about.300” to insure that it will not run out of travel while on thebase circle. Rotate the crankshaft to raise and lower thelifter several times to verify that the dial always returnsto zero when the lifter is on the base circle. If it doesn’treturn to zero, there are several possible causes:5/10 3803
Page 1: DEGREEING A CAMSHAFT...THE EASY WAY
Page 5 and 6: Figure 55/10 5803
Page 7 and 8: Once the cam is phased with the cra

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