Valve lashing. First attempt - Ford Mustang Forum

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post #1 of 5 (permalink) Old 01-10-2013 Thread Starter
Stoner53's Avatar
Joined: Oct 2012
Location: Carlisle
Posts: 33
Valve lashing. First attempt

Im getting ready to replace the head gasket on my 65 coupe. Should be simple enough however i havent ever attempted to adjust valve lashing before. Ive been looking up techniques to use but everyone seems to have their own special trick to it. Can anyone give me some pointers?

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post #2 of 5 (permalink) Old 01-11-2013
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Joined: Aug 2010
Location: San Antonio
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I have a 170 ci. engine with solid lifters and have set the valves a few times. Not knowing which engine you have, I can only offer generic advise. Label all your plug wires and remove the plugs. Starting in firing order, look into the plug hole and slowly rotate the crankshaft until the piston is at the top of its stroke. Set the valve lash for that cylinder then continue adjusting valves following the firing order. Do this right once and you won't have to touch them for quite a while. Good luck!

1964.5 convertible and a 2012 Sterling Grey GT. 100 hp. and 412 hp. Go Bama, Roll Tide! 2015 National Champions! Clemson put up one heck of a fight!
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post #3 of 5 (permalink) Old 01-11-2013
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If your talking about the car in your profile, it is a 289 that came with a hydraulic lift cam from the factory. If that is what you are installing you will need to set the initial lifter preload. To do this you need to find TDC of each cylinder but you also need to make sure you are on the compression stroke and not the exhaust stroke for that cylinder, to do this you can pull spark plugs and watch the piston come up and look at your distributor rotor to make sure it points to same plug wire. Once you have a cylinder at TDC, install push rod, rocker, and nut. As you tighten the nut down, spin the push rod with your fingers. When you get to the point that you feel very slight resistence to spin the push rod you have reached zero clearance. NOTE: You need to pay very close attention as the nut comes against the rocker as it is easy to go past that zero clearance point. Once you find that zero clearance point you will turn the nut an additional 1/2-3/4 turn. Thats it, do both valves for that cylinder and find TDC of the next cylinder in the fireing order.
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post #4 of 5 (permalink) Old 01-12-2013 Thread Starter
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Thank you! Thats a huge help.

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post #5 of 5 (permalink) Old 01-13-2013
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Here is link. It helped me.

1966 Coupe
289 4V 600 Holley & Performer intake
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Hurst Competition Plus Shifter
620 coil springs
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