COLT CAMS STAGE 3 “BIG STICK” CUMMINS CAMSHAFT

Valve lash all grinds INT: .010” EXH .020”

• Follow Cummins installation instructions, use adequate amounts of assembly lube.
• Retainer torque 44 ft lbs – use red loctite.
• When using our retainer, clearance is required on C.R.
• Always use new or re-crowned lifters!
• IMPORTANT NOTES:
  • C.R. cams cannot grind to stage 3, only to 1 and 2. You must use 24V 2nd core or new cast billet cams for anything over stage 2 grinds.
  • When using our new Big Stick Cast Billets, use 2^nd gen. 24V lifters only. (From 1998.5 – 2002, use Cummins Part #3942565.)
  • If using C.R. lifters with larger head, (also heavier) make sure it clears the fuel pump lobe on # 5cyl., especially on the 12V engines. C.R. blocks are ok but you should still check. If your gear is not pressed on all the way, the lifters could touch.

When sending us your camshaft(s),
please remove the gear(s) before shipping!

CAUTION! IF USING AFTER MARKET CONNECTING RODS,
EXTRA CLEARANCE MAY BE REQUIRED ON CAM CORE!

• Cam Lube on all lobes, lifter faces and oil pump gears.
• Oil all bearing journals and lifter barrels.
• Always turn engine over by hand before starting, check for clearances and proper timing location.
• Fire up to 1800 – 2000 rpm. for 18 – 20 minutes.

Note: Most oil companies have taken out a percentage of additives that are meant for anti-scuffing for break in on flat tappet cams, so please ask your local auto parts professional for the best zinc additive they have and add it to your oil before you fire-up your engine for the first time.