welch plugs?

fishdog4449

fishdog4449

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Jul 16, 2007
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1980 Mercury 80. Do the welch plugs absolutly have to be removed for the carbuerator to be cleaned properly? Clymer says to drill 1/8 holes and pry them out, but I don't like that idea and don't want to unless necessary.
 
Barnacle_Bill

Barnacle_Bill

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Feb 8, 2004
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Re: welch plugs?

Yes, there could be trash in there that you want to get out. If you are worried about going too far with the drill bit, put a small block of wood on it to limit the depth it can go down. I use a small awl tapped in at an angle then pop them out. They are made of very soft metal.
 
fishdog4449

fishdog4449

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462
Re: welch plugs?

ok, but how do you put them back in? do you have to reseal the drill hole or do you just buy new ones? i looked and couldn't find new ones anywhere.
 
L

Laddies

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Sep 10, 2004
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Re: welch plugs?

You can not reuse them as you will see after prying them out. They come in a carb kit but we get them at a auto parts store without buying the gold plated carb kits.
 
fishdog4449

fishdog4449

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Messages
462
Re: welch plugs?

ok ill check with napa
offhand ya know what dia they are?
 
C

Chris1956

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Mar 25, 2004
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27,142
Re: welch plugs?

I never removed the Welch plugs on my '77 Merc Sidebowl carbs. The brass plugs can be removed and all the passages cleaned out. The plugs can then be reinstalled. I seal them with silicone.
 
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