Rocker Arms Question

Falcons Talon · 08-11-2002, 10:09 PM

I'm putting back together my 302 after planing the heads. I'm torquing down the rocker arms to 25 lbs. My question is is there anything I need to do when torquing them down ?

PKRWUD · 08-11-2002, 11:27 PM

1) Install all 16 rockers and snug down the bolts by hand.

2) Rotate the engine until the balancer reads TDC on the compression stroke.

3) Check the rotor in the distributor, and verify that it is pointing at the #1 wire on the cap. If it's not, rotate the engine 360 degrees.

4) With a 1/4" drive ratchet, tighten the following rockers until you can no longer rotate the pushrod:
Cylinder #1 intake and exhaust,
Cylinder #3 exhaust,
Cylinder #4 intake,
Cylinder #7 exhaust,
Cylinder #8 intake.

5) Now torque each of those to 20 ft.lbs.

6) Rotate the engine 360 degrees, so the balancer reads TDC again.

7) With a 1/4" ratchet, tighten these rockers (again, to zero lash):
Cylinder #3 intake,
Cylinder #2 exhaust,
Cylinder #7 intake,
Cylinder #6 exhaust.

8) Now torque each of those to 20 ft.lbs.

9) Rotate the engine 90 degrees, and with the ratchet, tighten to zero lash on these rockers:
Cylinder #2 intake
Cylinder #4 exhaust
Cylinder #5 intake and exhaust
Cylinder #6 intake
Cylinder #8 exhaust

10) Now torque each of those to 20 ft.lbs.

***If it takes more than a full turn to reach 20 ft.lbs. torque, after you have reached zero lash, you're gonna need shims.

Take care,
~Chris

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08-11-2002, 10:09 PM	#1
Falcons Talon T.P.M. President Join Date: May 2002 Location: Brownsville Posts: 265	Rocker Arms Question I'm putting back together my 302 after planing the heads. I'm torquing down the rocker arms to 25 lbs. My question is is there anything I need to do when torquing them down ?

08-11-2002, 11:27 PM	#2
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	1) Install all 16 rockers and snug down the bolts by hand. 2) Rotate the engine until the balancer reads TDC on the compression stroke. 3) Check the rotor in the distributor, and verify that it is pointing at the #1 wire on the cap. If it's not, rotate the engine 360 degrees. 4) With a 1/4" drive ratchet, tighten the following rockers until you can no longer rotate the pushrod: Cylinder #1 intake and exhaust, Cylinder #3 exhaust, Cylinder #4 intake, Cylinder #7 exhaust, Cylinder #8 intake. 5) Now torque each of those to 20 ft.lbs. 6) Rotate the engine 360 degrees, so the balancer reads TDC again. 7) With a 1/4" ratchet, tighten these rockers (again, to zero lash): Cylinder #3 intake, Cylinder #2 exhaust, Cylinder #7 intake, Cylinder #6 exhaust. 8) Now torque each of those to 20 ft.lbs. 9) Rotate the engine 90 degrees, and with the ratchet, tighten to zero lash on these rockers: Cylinder #2 intake Cylinder #4 exhaust Cylinder #5 intake and exhaust Cylinder #6 intake Cylinder #8 exhaust 10) Now torque each of those to 20 ft.lbs. ***If it takes more than a full turn to reach 20 ft.lbs. torque, after you have reached zero lash, you're gonna need shims. Take care, ~Chris __________________ Webmaster: Rice Haters Club Jim Porter Racing Peckerwoods Pit Stop Support Your Local RED & WHITE!