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Old 08-23-2004, 08:31 PM
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Red face Tightened My Valve Train.........(One Bad Valve?)

Hello,

Well...I just tightened my valve train with some good lock nuts and everything was going by the book until the second last valve.

Basically I would spin the pushrod until it stopped and then 1/2 a turn more. Fine ! Except the second last valve. As soon as the pushrod snugged up I gave it 1/2 a turn. But it didn't feel as tight as the other ones, so I kept tightening it and the left spring part was compressing and it went down about 1/4 of an inch before it stopped.

I was shocked by this. All of the other valves either snugged on the extra 1/2 turn, or bottomed out soon after. But with this valve's spring was compressing.

What's with that? Does that mean that I was forcing the valve open? It really wasn't a lot of torque, I was applying the same tightening power as the rest of them.These are new comp cam springs and should be good.

And yes, I'm sure I was on the base of the cam, all of the other ones seemed to be straight/level.

Help !!!


Greg.

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Old 08-23-2004, 09:00 PM
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check to see if your lifter is collapsing when you tighten the rocker on. If it goes down a little like the others, then it's probably the spring. Take one of the other springs off as well as that spring and squish them with yout foot by stepping on them gently. See if it is easier to squish, if it is, it's probably a lemon. If your pushrods are the same length, there's nothing else I can think of at this point, since I have only built one engine.
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