RockerArm Question.
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Senior User
Joined: Nov 2012
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RockerArm Question.
hey guys,
question.
when installing the rocker arm assbly,do you torque them down with the valves open or closed?also dose it matter if there open or closed.
other question.
we bought new springs for the valves cause the cam called for it.so we installed them.but there was some .30 spacers on the old springs.we put those back.im wanting to know do we need to take those out? or will it be fine if they are left in there?
thanks
question.
when installing the rocker arm assbly,do you torque them down with the valves open or closed?also dose it matter if there open or closed.
other question.
we bought new springs for the valves cause the cam called for it.so we installed them.but there was some .30 spacers on the old springs.we put those back.im wanting to know do we need to take those out? or will it be fine if they are left in there?
thanks
Postmaster
Joined: Mar 2005
Posts: 2,949
Likes: 6
From: Earth
The lifter should be on the base circle of the cam when adjusting the rockers. Rotate the crank until the exhaust valve starts to open, adjust the intake rocker, then rotate until the intake valve starts to open and adjust the exhaust valve. Start with #1 and go through the firing order.
Whether or not the springs need shims depends on the installed height of the valve retainer and mfg recommended valve spring height.
Whether or not the springs need shims depends on the installed height of the valve retainer and mfg recommended valve spring height.
Thread Starter
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Senior User
Joined: Nov 2012
Posts: 381
Likes: 0
The lifter should be on the base circle of the cam when adjusting the rockers. Rotate the crank until the exhaust valve starts to open, adjust the intake rocker, then rotate until the intake valve starts to open and adjust the exhaust valve. Start with #1 and go through the firing order.
Whether or not the springs need shims depends on the installed height of the valve retainer and mfg recommended valve spring height.
Whether or not the springs need shims depends on the installed height of the valve retainer and mfg recommended valve spring height.
thanks for the help
Lead Driver
Joined: Mar 2008
Posts: 7,174
Likes: 377
From: Near Los Angeles
Your cam manufacturer will have a recommended installed height. There is a specialized tool for measuring the height.
Adjusting the rockers, valve lash: Do you have pedestal or stud mount rockers?
The base circle is the opposite of the lobe. The lobe pushes the lifter up and down. Then the lope continues to rotate and moves past the lifter. Once the lope has moved out of touching anything, the base circle is holding the lifter.
Adjusting the rockers, valve lash: Do you have pedestal or stud mount rockers?
The base circle is the opposite of the lobe. The lobe pushes the lifter up and down. Then the lope continues to rotate and moves past the lifter. Once the lope has moved out of touching anything, the base circle is holding the lifter.
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