Timing Chain and Gears Step by Step
Step-1: Smooth it Out
Smooth the snout of the crank with emery cloth and run a tap down the threads before installing the crankshaft gear. This will ensure smooth assembly and an accurate torque reading.
This Tech Tip is From the Full Book, HOW TO REBUILD BIG-BLOCK FORD ENGINES. For a comprehensive guide on this entire subject you can visit this link:
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Step-2: Install the Timing Gears and Chain
Rotate the crankshaft so that the keyway for the timing gear is facing up. Slide the crankshaft gear onto the crankshaft, aligning the tooth with the dot so that it will slide over the keyway. (If you are using a multi-indexed sprocket like the one on the left, be sure that the slot marked zero is the one you are aligning with the key on the crankshaft.) Place the timing chain onto the cam gear and then over the crankshaft gear as you slide the lower gear over the keyway and into place. Slide the camshaft gear onto the cam, aligning the hole in the gear with the dowel in the front of the cam. Check and make sure that the dots on the cam gear and crank sprocket are lined up.
Step-3: Install Fuel Pump Eccentric and Oil Slinger
Install the fuel pump eccentric and retaining bolt into the front of the camshaft and torque the bolt to 40 to 45 ft-lbs. Apply a coating of white grease or assembly lube to the face of the fuel pump eccentric to avoid wear during startup. Don’t forget to replace the oil slinger on the crankshaft and butt it against the bottom timing gear.
Most cam manufacturers provide cam installation and degreeing instruction in great detail with their cam packages. The manufacturers of the degree wheel kits also provide these instructions. Please consult the manufacturer’s recommendations when degreeing your camshaft. (Summit Racing)
Timing Chain Cover, Vibration Damper and Water Pump
Step-1: Grease the Timing Cover Seal
Coat the crankshaft seal with a thin coat of white grease to aid installation. Note that the coating of grease is thin enough in this photo for the red metal shoulder portion of the seal to show through. Align the seal in the opening and then using a soft mallet tap the seal into place in the timing chain cover, alternating as you go until the seal has fully seated into the cover.
Step-2: Use Gasket Sealer
Step-3: Note Rubber Seal on Timing Cover Bottom
Step-4: Seal Water Jacket Bolt Hole (Important!)
Step-5: Mark TDC
Step-6: Install Crankshaft Sleeve
Step-7: Install Damper Bolt
Step-8: Install the Accessory Drive Pulley
Written by Charles R. Morris and Republished with Permission of CarTech Inc