Re: GAV replacement
1. For brass seat if it has one...
Use a screw driver which fits the slot correctly.
If it will not unscrew STOP before the slot is damaged.
Use a MAPP gas torch (MAPP is hotter than Propane) to heat the area below the brass plug, where brass seat lives. Let it cool. Dunking in cold water will sometime crack casting.
2. If brass GAV housing is stuck heat outside of lower carb casting and brass housing with MAPP torch. Brass will melt long before the cast iron does. (There are two wrench sizes 13/32nds and 7/16ths.)
Oxy-acetylene will melt brass easily use caution.
Last edited by Benson; 09-18-2018 at 09:53 AM.
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