sealing carb plugs

[reynold460]

what do you put on threaded brass plugs to seal the threads on merc carbs

 

[DamianJP]

Re: sealing carb plugs

Hey reynold460

I never used anything just the washer. I assume you mean the plugs on the bowl of the carb part? I dont think you want anything that could wear off and get sucked into the carb and plug it up.

Remeber to use a tight fitting flathead that spans the whole plug head.

I used a open end wrench once and junked a bowl because I couldn't get the broken plug end out. Any not to mention the plugs are $20 each :redface:.



DamianJP

 

[Chris1956]

Re: sealing carb plugs

I would smear some silicone over the perimeter of the plugs. I think the threads are tapered pipe thread, so they should get tighter as you turn them.

 

[Dave1027]

Re: sealing carb plugs

Don't those things have gaskets?

 

[Chris1956]

Re: sealing carb plugs

I think he is referring to the brass plugs that seal the places in the carbs where they had to drill and tap the raw casting. On a sidebowl Merc carb, there was a plug on the bottom over where the main nozzle was installed, as well as one over where the idle restrictor tube was installed.

 

[k dogg]

Re: sealing carb plugs

pipe thread sealer