rocker arms...
Thread Starter
Racer
Joined: Feb 2008
Posts: 435
Likes: 0
From: Bulverde TX
rocker arms...
Ok so i just got the heads back on my car and unfortunantly have to use the stock rocker arms do to bein a little tight on money. I need to know if they are supposed to be seated all the way on to the pedestal. My dads only done dodges and fords and ive only done fords so we really need some help here!
Drifting
Joined: May 2005
Posts: 1,563
Likes: 334
From: Indianapolis Indiana
I'm not sure what you are asking.
Rocker arm will fit over the stud then the pivot ball then the nut. There may be a washer in there somewhere. Tighten the nut per proper procedure for adjusting the valves. Hopefully you know which pivot ball went with what rocker arm since you are using the old ones over.
Rocker arm will fit over the stud then the pivot ball then the nut. There may be a washer in there somewhere. Tighten the nut per proper procedure for adjusting the valves. Hopefully you know which pivot ball went with what rocker arm since you are using the old ones over.
Thread Starter
Racer
Joined: Feb 2008
Posts: 435
Likes: 0
From: Bulverde TX
Well apparently on my 85 they arent adjustable. Im just confused because when tightend down to actually be touching the pedestal even when the lifter is in the closed position it is compressing the spring and thus opening the valve. What am i doing wrong? Really need help on this one.
P.S. unfortunantly i dont have a FSM...
P.S. unfortunantly i dont have a FSM...
Le Mans Master
Joined: Feb 2000
Posts: 9,715
Likes: 27
From: Kempner Texas
Setting preload with ADJUSTABLE ROCKER ARMS
Turn the engine in the normal direction of rotation. Start with cylinder number one (1). When the exhaust valve begins to move, adjust the intake valve to the correct preload.
To reach zero, take the pushrod between your finger tips and move it up and down while you tighten the rocker arm. Once
you feel the pushrod has no more vertical slack, you are at zero preload.
Make sure the pushrod is in the lifter and the rocker arm seat when making valve adjustments. The best setting is .030” to .040”, or ½ to ¾ a turn of the wrench past zero.
Now, you can move on to the exhaust valve on the same cylinder.
Begin by rotating the engine over again until the intake valve
reaches maximum lift and is almost all the way back down. Then set the exhaust valve using the same method as the intake (.030” to .040”, or ½ to ¾ a turn of the wrench past zero).
Continue adjusting the valves on each cylinder in this manner until all valves are adjusted.
This is from CompCams. I have a longer, more detailed version that I wrote, so if you need it let me know and I'll post it.
Jake
West Point ROCKS!
Turn the engine in the normal direction of rotation. Start with cylinder number one (1). When the exhaust valve begins to move, adjust the intake valve to the correct preload.
To reach zero, take the pushrod between your finger tips and move it up and down while you tighten the rocker arm. Once
you feel the pushrod has no more vertical slack, you are at zero preload.
Make sure the pushrod is in the lifter and the rocker arm seat when making valve adjustments. The best setting is .030” to .040”, or ½ to ¾ a turn of the wrench past zero.
Now, you can move on to the exhaust valve on the same cylinder.
Begin by rotating the engine over again until the intake valve
reaches maximum lift and is almost all the way back down. Then set the exhaust valve using the same method as the intake (.030” to .040”, or ½ to ¾ a turn of the wrench past zero).
Continue adjusting the valves on each cylinder in this manner until all valves are adjusted.
This is from CompCams. I have a longer, more detailed version that I wrote, so if you need it let me know and I'll post it.
Jake
West Point ROCKS!
Melting Slicks
Joined: Nov 2005
Posts: 2,736
Likes: 0
From: WAY UPSTATE NY
Well apparently on my 85 they arent adjustable. Im just confused because when tightend down to actually be touching the pedestal even when the lifter is in the closed position it is compressing the spring and thus opening the valve. What am i doing wrong? Really need help on this one.
P.S. unfortunantly i dont have a FSM...
P.S. unfortunantly i dont have a FSM...
