checking valve clearances
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checking valve clearances
Make sure the engine is in top dead center, rotating in the crankshaft counter clockwise. Watch for the intake valve to open. Start watching for the "T" mark on the flywheel to come up and stop when it does. Loosen the lock nuts and back off the adjuster screws a little. Take the feeler gauge, note the spec the manufacturer of the cam recommends the valve lash to be set at, and slip that feeler gauge between the top of the valve stem and the bottom of the adjuster screw. turn the adjuster screw in until a little resistance is felt. Make sure the lock nut on the adjuster is loose. Try to slide the feeler gauge out. Some resistance should felt. If the engine is stone cold, I like adjusting them so the feeler gauge comes out kinda of hard, but not tough to get out. With the engine around 95 degrees, a slight resistance should be felt as you slide the feeler gauge. Take a small screwdriver and hold the adjuster screw so it will not turn as you tighten the jam nut on the adjuster. Confirm the adjustment with the feeler gauge after the jam nut has been tightened. Repeat for all the valves. Simple ...
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