Originally Posted by yar
"If it exceeds 0.010 (10 thousanths) inch, then probably may be repaired with a new throttle shaft."

Good morning Jon.

With a clearance approaching 0.010" does a lot of air come in along the throttle shaft due to engine vacuum making idle inconsistent and hard to adjust? I notice the Weber carbs have actual seals at the throttle shafts.

Depends entirely on how the engineers designed the carburetor. Carter designed for minimum 0.004~0.006. An additional 0.003-0.004 wear is normal. Remember that 0.010 cold will be less than 0.010 hot.

Don't know about Webers.

Jon

Last edited by carbking; 03/12/2019 5:31 PM.
Good carburetion is fuelish hot air
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