1966 Chrystler Model 3601

[trout-hunter]

My wife was cleaning the Garage the other day. She swept up the vent screw for the lower unit. I am guessing it is a 3/16-18 screw. If it is, where can I find this size? I looked at Lowe's, and didn't find it.
On the Tillotson MD124A carb, the seat and needle plug cap. Is that a threaded screw plug, or a simple plug? I am having a hard time with it.

 

[wickware]

Did you verify the screw was missing? Why not install that screw? I guess I’m not visualizing the vent screw and where it’s located? I have a 1970 35HP Chrysler that lives outside. I add a tarp on the ground when working if needed X parts.

 

[trout-hunter]

Did you verify the screw was missing? Why not install that screw? I guess I’m not visualizing the vent screw and where it’s located? I have a 1970 35HP Chrysler that lives outside. I add a tarp on the ground when working if needed X parts.

Yes, I looked all over, and she swept it up. She did get the third degree plus a spanking for being a bad girl. Vent screw is about 1 1/2 inches above the fill screw. It's a 3.5 hp outboard.

 

[wickware]

Be nice to your Wife if she is the cook. Enough Said!

Look at the address below and maybe a size is mentioned. I feel my vent and fill screws are the same size but your vent looks smaller in my Clymer Manual with no size mentioned. If needed, post specific to “Nordin or Frank”, I feel they will know the size.

http://store.oldmercs.com/product_p/10-79953k04.htm