COMP Cams Billet Timing Sets Instructions
COMP Camsо Billet Steel Timing Sets are the most reliable units available. They give the installer the ability to fine-tune the powerband of the cam by allowing the cam to be positioned from 0 to 8-degrees advanced or retarded in 2-degree increments. Remember: The camshaft angle is half the crankshaft angle, therefore the camshaft will correspondingly advance or retard 1, 2, 3 or 4-degrees. This allows the centerline of the camshaft to be “dialed-in” more accurately than with the use of cam degree bushings.
Installation:
We recommend the chain and sprockets be pre-assembled before final assembly of the motor to check for any interference between the block and the timing set. When installing or removing the lower crank gear, which is a “press fit”, proper puller/installation tools should be used to prevent possible damage to either the sprocket or the crankshaft snout. Extra care should be given to the front of the block where cam thrust is set to prevent excessive wear.
Please review the diagram on the back page of these instructions, as your crank gear may not be stamped showing the timing marks for advancing or retarding the camshaft. The crankshaft keyway and the correlating cam phase markings are noted on the diagram. This diagram has been provided to assist in the more accurate phasing of your camshaft.
Ford Windsor Instructions
To use the thrust bearing in the #8138 kit, you will need to counter sink the holes in the thrust plate and use counter sink bolts (not included), that will tighten flush or below the thrust plate surface. Affix the bearing to the engine side of the sprocket with the black mark facing the engine. Note: Failure to perform this modification to the thrust plate will destroy the bearing during installation due to the thrust plate bolt to thrust bearing contact.
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