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Do you leave the car running when you tighten the rocker arms on a Chevy 350?
Wiki User
∙ 12y ago
It's not necessary to run the engine.
With #1 at TDC, you can set 1, 2, 5, and 7 intakes, and 1, 3, 4, and 8 exhausts.
Rotate engine one revolution (#6 TDC) and set the rest.
If it's a hydraulic cam, tighten the rocker nut until there is 0 up and down movement in the pushrod, then tighten an additional 1/2 turn.
For solid cams, tighten rocker nut until specified backlash is achieved.
Wiki User
∙ 12y ago
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What do you torque the rocker arms to when you replace push-rods on a 1987 5.0 Mustang?
you don't really torque them, you tighten little by little as you shake them up and down until they are snug, the tighten just a little more, too much will leave you with bent pushrodsAnswerActuall, the 87 uses hydrolic roller lifters, so the procedure would be to just tighten them down. I believe that the torque spec is something like 24 ft. lbs. (you should look it up). Dont just tighten them down until the pushrods appear to be tight (as described in the first answer) or the nuts may back out and you will have big problems. Unless you have changed pushrod length or installed aftermarket rocker arms. If this is the case, you may need to purchase shims to maintain the proper rocker arm geometry.
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