Instrukcja obsługi COMP Cams COMP4-102

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INSTRUCTIONS




Camshaft Installation and Degreeing Instructions
4.6-Liter 4 Valve Engines

Thank you for choosing COMP Cams® products; we are proud to be your manufacturer of choice. Please read
this instruction sheet carefully before beginning installation, and also take a moment to review the included
limited warranty information.

This instruction sheet is bro

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Step 11: Position the crankshaft keyway at 12 o’clock, lock the camshafts (keyways facing down) and attach the secondary camshaft gears and timing chains, making sure that the timing marks on the secondary gears line up with the copper coated links on the secondary timing chains. Return tension to the secondary timing chains by removing the pin that was inserted in step 5. Step 12: Attach the primary camshaft gears and timing chains, making sure that the timing marks on the camshaft and

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Intake Centerline Method There are several accepted ways to degree a camshaft. COMP Cams® suggests the intake centerline method as the easiest and most accurate. This method of cam degreeing is very practical and indifferent to engine design characteristics. It simply involves positioning the center, or point of maximum lift, of the #1 intake lobe with Top Dead Center (TDC) of the #1 piston. The intake centerline method still requires accuracy to be correct, but it is somewhat forgiving.

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Step 10: Repeat the degreeing process on the intake camshaft. Step 11: Repeat the degreeing process on the opposite cylinder bank, this time using the number 6 exhaust and intake valves to check lift centerline. Note that it is not necessary to reestablish TDC in order to verify the #6 intake and exhaust centerline. In the event that your camshaft did not degree in to the camshaft specification, it will be necessary to either advance (move the cam ahead) or retard (move the cam back) t