well i got the carb rebuilt
now the bad part. when i bought it, it was missing two screws for the primary fuel bowl. so i order some and now found out why 2 where missing. one of the threads is stripped in the main body
I have seen a very good demo and used the same material to repair aluminum. I do not have a good picure in my mind of you screw location... but the alumiRod materials can be applies with swirl propane, acetalyne, or oxy acetalyne (hot) if carefull. Evalluate/look to see if any other heat senative items in the area and looks to be good app. There are a few others below that would work too.... Good Luck... here is a bit more... do not miss the need for Stainless Steel Brush clean up... a steel brush will mess up the applicaion of alumirod.
The AlumiRod is stronger than alumium and is used like braze. I have repaired a few alumium cast decks and it does work..
Will have to clean away any surface oxide.
SS brush has to be used... if steel is used it will not stick to steel and some of the steel on the alumium will not allow the alumirod to wet. Some of the tech sites omit the SS brush trick so dont forget.
This can be used to fill a hole, while molten put in steel fastener and molten alumiurod will solidify and not stick to steel threads. Will need to find steel fastener that matches the carb hardware. This will give you a threaded hole that is much stronger metal than the base alumium.
Could also just fill the hole and drill and tap too.
Seen this fill the broken ear on aluminum castings with steel below and a curved pc of thin steel to make the ear mold.... Fill the steel mold and let cool... Several time stronger than the orginal aluminum ear.
Could also use JB weld or similar and drill and tap it.
Pematex has a metal filled epoxy that can repair this issue too. Used for bearings housings and metal fill. Can be machined and turned and worked like metal. I have it in 3min and 5 min if remember right. 2 part epoxy.
I would use the alumirod if you have heat source...
Search the braze alumium, aluminum repair, alumirod and it should pop up. Alot of local stores in my area have it now too. Cool stuff.