Instructions For Installing OEM Cam Gear

On V-Thunder

®

Camshaft

After removing original cam, mark the position of the cam gear in relation to the

keyway on the cam (see photo #1). Scribe as fine a line as possible so cam

timing will be correct when you reinstall the gear on your new cam. Press gear

off of camshaft, being careful not to damage teeth on gear. Line up scribe

marks with the two marks (see photo #2) on your new camshaft. Press gear on

Camshaft

Line up keyway (A- advanced, O- Straight up, R- retard ) with the marks on the

cam and press gear on. Advance will advance the cam timing, which will lower

the power band, and retard will raise the power band.

Instructions For Installing Multi Indexed

Cam Gear in the Straight Up Timing

Position

Align O keyway (#1) with the camshaft keyway. Align O mark (#2) with pinion

gear mark. Align O mark (#3) with breather gear mark. To advance or retard

cam timing, use A (advance) or R (retard) keyway and A or R marks.

1.800.967.1066 Fax 907.366.1807

www.vthunder.com

1.800.967.1066 www.vthunder.com FAX 901.366.1807

Photo #1

Photo #2

VT-178

Photo #3