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My 450 motor is out and on the stand. Before starting to tear it apart I wanted to check the valves just see where they were at. I'm getting ready to print of the 450 valve adjusting section on Bill's CD so maybe this question should wait.

Oh well, I'm at the computer.......should the .002" feeler guage go all the way under the cam lobe? I brought the piston to TDC (verified by watching exhaust valve close then looking for LT on the stator). I couldn't get the guage under the cam lobe so I loosend the adjusting screw lock nut and tried to get enough clearance to get the feeler under there but it seem like it only goes so far then starts to tighten up again. Is that correct? Is it an eccentric adjustment?
 

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Yup, it's an eccentric adjustment. Just make sure the cam lobe is opposite the lifter. You should be able to slide the feeler all the way. Not a loose fit, not difficult to get in there. You know, just right. I usually go with a bit less drag of the feeler on the exhaust valves just to make sure they don't get burnt. Make sure the index mark on the end of the eccentric shaft point away, roughly from the sparkplug.
Hope that helps.
Nate in PDX
 
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