I have a set of stud mount scorpion 1.6 roller rockers on my heads. I just put the heads and rockers on and drove around on them for a couple of days. I had a little bit of valvetrain noise so I went back in and I adjusted the rockers again. The first time after I installed the rockers I only went a quarter turn after the pushrod stopped spinning. This time I went a half turn. When I fired the car up this time the noise had gotten worse. Some of the lifters were still pumped up when I readjusted the rockers. I wasn't sure if that made a difference or If I might have some othere problem. The first time I installed the rockers none of the lifters were pumped up. Maybe someone can tell me where I am going wrong.
I need help with roller rockers
- Thread starter tistan2
- Start date
Rootus
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How much noise are you talking about? It's normal to get a bit more noise from a roller rocker setup than from the stock one. You're pretty sure you are adjusting the preload correctly? The lifters don't need to be pumped up (as in with oil), the spring inside is more than sufficient. You just tighten the adjusting nut down until the pushrod offers a bit of resistance to being turned (you can still turn it of course). That would be zero lash, and the point at which the rocker no longer has any up-down play on the valve stem or pushrod. Then give it 1/2 a turn and set the lock. Assuming that's how you're doing it, you should have them adjusted correctly. Make absolutely sure you're on the base circle of the cam when adjusting each rocker.
Personally, I run 6.300 pushrods, because that gave me my best geometry. But the stock length pushrods were functional as well.
Dave
Personally, I run 6.300 pushrods, because that gave me my best geometry. But the stock length pushrods were functional as well.
Dave
Rootus
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Rootus
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From what I can tell, one of them is about to give up. It's the story of my life sometimes.rockin_rick said:
Dave
as the rpms rise you can really start hearing it more. when it is at idle it is not much louder than a small exhaust leak. i have them adjusted just like you said. the only other thing i can think of is maybe they are hitting on the valve cover, but i cant see any spots where they would be hitting. I used fox body covers and grinded them.
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