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geof33 geof33 is offline
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Join Date: Sep 2003
Location: Colorado Springs
Posts: 1,382
A funny thing happened at the machine shop...

So the beginning of the valve job has commenced. Some very interesting things have been discovered. Keep in mind this was a basically unknown "blown" motor. The first thing that we found was the lack of seals on the valve guide at the spring end. Thought maybe a fluke... Nope, everyone. This motor must have smoked like a chimney!!! The exhaust valve guides were all so out of spec the valves rattled inside them... The intake valves were so tight in their guides it's amazing they worked at all. The only thing we could figure is the intake guides were changed, and not properly reamed (if at all) and the exhuast guides either not changed or changed without doing any of the seats, because the EX valves were totally shot...

SO, new exhaust valves are a-commin', new turbo guides installed on the exhuast side and teflon seals installed. Pics on completion.

And WOW, what an amazing piece of engineering those little heads... I learned what a "flowing" head was today. I was amazed at how these things work... Very cool!!!!
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Old 09-02-2004, 05:07 PM
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