rocker arm geometry
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rocker arm geometry
When installing an after market set of heads (Dart Iron Eagle 308) and a set of roller rocker arms, how far do I screw the Polly locks down, keeping in mind the back lash adjustment (1/4 turn down after zero lash). I do not know how to work the rocker arm stud adjustment with the adjustable push rod to get the right geometry.
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I have set up rocker geometry more than a few times. It is difficult for me to explain just how to do it correctly. Maybe this link will help you out.
http://www.compcams.com/Technical/FAQ/FAQPushrods.asp
http://www.compcams.com/Technical/FAQ/FAQPushrods.asp
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geometry must be right on
I have set up rocker geometry more than a few times. It is difficult for me to explain just how to do it correctly. Maybe this link will help you out.
http://www.compcams.com/Technical/FAQ/FAQPushrods.asp
http://www.compcams.com/Technical/FAQ/FAQPushrods.asp
#5
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When installing an after market set of heads (Dart Iron Eagle 308) and a set of roller rocker arms, how far do I screw the Polly locks down, keeping in mind the back lash adjustment (1/4 turn down after zero lash). I do not know how to work the rocker arm stud adjustment with the adjustable push rod to get the right geometry.
I use a light gauge valve spring and I color the tip of the valve stem with a black marker then adjust the pushrod to get the
roller to smudge the marker as close to the center of the valve stem as possible when rotating the engine one complete
turn.
Now measure the pushrod and you have your lenth.
Then follow the correct lash adjustment.
Gerry
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rocker arm geometry
I have a set of addjustable push rods.What I need to know is where to set the rocker arm at the top middle or bottom of the rocker arm stud. Where to start, do I adjust them both up and down to get the rocker in the middle of the valve stem.
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Last edited by KNOT-RIGHT; 12-09-2007 at 07:50 PM.
#9
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Sak aready said he would buy ya steaks if ya visited him
I say both of you guys come help me drive my tub.
I will buy the lobsters and Coronas!
Sorry dont mean to Hijack this Deal!
#10
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That's a deal! I'm Throttling ! Never ran a turbine boat before.....that would be very cool!!