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Old 03-24-2011, 10:04 AM   #19
Lornce
Lost In Place
 
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Joined: Aug 2003
Location: Way Out There.
Oddometer: 17,289
Lloyd,

As evidenced by the rapid change in clearance, your exhaust valves are shot. It's the seat face of the valve that's giving up from the hot pummeling it's taking from too-hard exhaust seats. I bet you a doughnut your exhaust guides are finished, too.

Valve guides are a whole $10 for the good aftermarket pieces from CC Products.

If you're going to take it all apart to change the exhaust valves, I wouldn't mess around with it. I'd change the exhaust guides, too.

Your intakes, valves and guides, are probably fine. They run nice and cool and properly adjusted last 4-ever. Almost.
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