fuel leak

[stuarth]

Hi guys i have fuel leaking from 1 of my adjustment screws on carb when i try to prime up engine , tried posting up picture to show which 1 but cant get it up loaded , its down near exhaust on base of carb above it is long thin adjustment with black plastic ?? Any help be great

 

[rcnut14]

the one with the brass sheath in this pic?

 

[Jam Racing 1]

if indeed it is the point of your leak, use an 8mm open end wrench and simply tighten it down, if the leak persists then take it all off and use a bit of sealant on the 2 small washers and under the threaded flange that screws into the carb base...

 

[WoodiE]

use a bit of sealant on the 2 small washers and under the threaded flange that screws into the carb base.

This! As Jam says just use a bit, don't need to go crazy on the sealant as you don't want it to end up in the carb and plugging things up.

 

[stuarth]

Thanks for help guys it is actually the screw going in horizontal thats the problem

 

[rcnut14]

if it's the horizontal brass one In the pic, then I would do the same thing. take it out and seal it.

 

[stuarth]

It is an adjustable screw though ,

 

[stuarth]

It is an adjustable screw though ,

 

[griff7373]

http://www.rcnitrotalk.com/forum/threads/sealing-a-nitro-engine-for-air-leaks.72487/

Copied from another forum looks like you could use green slime on the screw.

 

[X]

It is an adjustable screw though ,

This is true. And you can certainly do as Griff7373 suggested and simply put green slime on the o-ring. Most people however find the mid-speed needle more trouble than it's worth and seal it up permanently. Simply set to stock setting, then apply RTV to the head of the needle. I use Permatex Ultra copper:
http://www.permatex.com/products-2/...-temperature-rtv-silicone-gasket-maker-detail

 

[stuarth]

Great thanks guys will give it a go