Have a broken exhaust valve spring that was causing my knocking. Valve doesn’t seem to be hurt. Can spin it and move it freely with the play I have. What do I need to do to change it. What’s a good valve spring to replace it?
Any help is appreciated.
You got lucky that there appears to be no damage. My vote goes for replacing all of the valve springs while you're in there. If one failed, it's only time before another one does and you might not be so lucky the second time. It's not a hard job, and only requires an
inexpensive tool to compress the springs, remove the retainers, and install new springs.
I'm replacing the springs on mine as part of a cam swap right now, and had to go with stronger springs because of the lift on the new cam. I chose dual springs from Vinci Performance for the added redundancy of the second inner coil. If I were simply going to replace the stock spring on mine, I'd probably choose the
PSI 1511. They're more expensive, but there's a lot of science behind the metallurgy on valve springs, and PSI does their homework. They make the springs for a lot of racing teams out there, too.
Dave
