G-38 Plug in engine case
 

I could not figure out why my G-38 was acting up when it always ran perfect!!! Had a dead stick and it woud not start. I pulled the cowl off and was checking the fuel lines. I then noticed the plug in the crank case was missing. It looks like 10mm is it pipe thread. I have a 10mm bolt in iot right now but I did not want to over tighten it. Can I get a plug any where that will fit it. Lucky find and a nice safe dead stick1 :eek:

RE: G-38 Plug in engine case
 

Is it in the top of the crankcase or the bottom?
If it is in the top - maybe you are missing a sparkplug :D

Ok - sorry, I have no idea what the actual thread is.

RE: G-38 Plug in engine case
 

Some pictures would help

RE: G-38 Plug in engine case
 

Maybe it is the option takeoff for a pulse tap for smoke or another type of carb. losing it would cause your cylinder base pressure to go away and thus no transfer of fuel/air mix to the piston top. Perhaps the G-38 parts breakdown schematic will give you the thread of the plug.

Regards, Richard

RE: G-38 Plug in engine case
 

http://www.horizonhobby.com/Products...D=ZEN312013510 $4.95 case plug

There's a gasket that goes under it http://www.horizonhobby.com/Products...D=ZEN313013520 $.99

In the second picture, you can see where it goes

RE: G-38 Plug in engine case
 

Plug it off with anything that will thread in good. Use some sealer or loctite. Capt,n

RE: G-38 Plug in engine case
 

I think it is just regular 10mm

RE: G-38 Plug in engine case
 

W8ye is right on with what you need.

RE: G-38 Plug in engine case
 

Insure that the bolt is not so long that it interferes with the crankshaft counterweight. Use locking and sealing compound as others have said.

Or, get a smoke kit and make smoke!:D

Regards, Richard