94 G STANG

well guys i finished up my motor swap started her up and im getting the dreaded valve noise, its idling fine but making the damn noise.
i let her run for 3 hours same thing, i used 10w30 synthetic blend oil
my valve springs are upgraded hardened springs retainers etc from trick flow, crane roller rockers 1.7 gt40 heads intake steeda #19 cam. Any ideas?

94 G STANG

http://s172.photobucket.com/albums/w...t=2f3ac990.flv
heres a short vid, sorry for the crappy quality

aode08

valves dont make noise

the roller rockers do. Readjust them and it should dissapear.

Also look for exhaust leaks indicated by black or white carbon marks

my77stang

cant make anything out from that video

94 G STANG

ya sorry the rockers are making noise, how do you adjust them?
i thought they cant be adjusted

my77stang

depends on what kinda rocker arm setup you have. are they studs with a locknut on top, or a bolt down style?

you can easily adjust stud style rocker arms, and the pedestal style(bolt down) you will need different length pushrods or shims for the pedestal mount.

5.0stanger

If they are loose, you need longer push rods, if they are too tight, you use the shims that came with them. To adjust rockers, first, loosen all you rockers. Then start on the number one cylinder, rotate the engine till you see the rocker/push rod you are adjustingmove up and down, keep going till the push rod right next to it(same cylinder) just starts moving up, now you know you are on base circle. Take the lash out(free play) until you have no up and down movement in you push rod but it will still spin freely by hand. From that point, (you have pedestals I assume) you torque to spec of 19ft/lbs. While torquing to that spec after lash you should have no more than one full turn and no less than 1/4 turn. If you have more than one full turn you will have to add a shim, if you have less you will need to remove a shim or get longer push rods.

94 G STANG

mine is stock pedesltal mount rockers the same as in the cobra, it has a ford part # and stanger thats great advice
im just sad i have to tear it apart again [&:], i get you until the shim part, you mean add a shim underneath the valve spring? or under the rocker ? Im sorry for the dumb questions but its my first motor build even though im a grease monkey everyday.

my77stang

they go between the head and the rocker arm and are basically a thin rectangle washer. they look like this:

5.0stanger

77 is correct, they under the pedestal, and that is only if it takes more than one turn to get you torque.