Cloyes Quick Button Timing Cover User Manual

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counter-clockwise until it is bottomed-out against the adapter plate. Carefully install
the O-Ring (supplied) in the groove on the back side of the adapter plate. Install the
adapter plate into the access hole in the timing cover with the recessed area of the
adapter plate should be towards the top of the engine for proper water pump
clearance. Insert the four Button Head Cap Screws to hold the adapter plate in
place. Tighten the screws alternately in a criss-cross pattern until the adapter plate
is fully seated in the cover. Tighten the screws snugly using the 5/32" Hex Wrench
(about 30 in-lbs). Remember that the screws are going into aluminum, so please
do not over-tighten them.

Adjust the Camshaft Endplay. Using your screwdriver, turn the Quick Button

cam thrust button clockwise until it bottoms against the nose of the camshaft. Now,
install the locking screw and tighten, using the 5/32" Hex Wrench, to 120 in-lb (10 ft-
lb).

The camshaft endplay is now set to “Zero” lash. Due to the higher thermal
expansion rate of the aluminum timing cover compared to the steel cam button
assembly, there will be a small amount of endplay with the engine warmed up.

WARNING! This timing cover has been designed to fit behind the Chevrolet short water

pump. However, some aftermarket racing pumps may not provide adequate
clearance. If the water pump does not provide clearance, the Quick Button

cam

thrust button may be overloaded. Check for clearance using feeler gauges or
paper. It may be necessary to modify the cover, water pump, or both.

WARNING! This timing cover has been designed to accommodate up to a 7-1/2" vibration

damper. Some larger dampers, such as the Chevrolet 8" replacement, may
interfere with the Adapter Plate screw heads.