Muffler Extension Problem
 

Hi All I need to extend my muffler on my Irvine 40..Here 's the problem I need to cut the extension piece about 3/4.. I can cut and drill this out . Question is where do I get Metric Screw's that are 3mm and longer then 50mm.

I do have the a Dubro short extension piece, but need it just a little longer.THat came with 3mmx50mm screw's.. I'm going to need just a little more in the length.. So far I haven't come across then?

Thanks Dan

RE: Muffler Extension Problem
 

I recently had a similar problem (needed 3 DuBro extensions to clear the fuselage ).

How I solved the problem was:

1. Get a length of 3mm threaded rod. They usually come in 3' or 1 meter lengths for under $10. I had to mailorder mine since none of the local hardware stores had any.

2. Get 4 3 mm nuts.

3. Double nut at one end of the rod. Make sure you use HIGH TEMP threadlocker OR solder the nuts together. Use your dremel and cut a slot about 2/3 of the way through THE TOP NUT ONLY for a screwdriver.

4. Cut the rod to the length you need.

Hope this helps.

RE: Muffler Extension Problem
 

hi

I have had this problem on a model some time back and what I did was choose an american tap a little larger than then metric screw and retap the muffler for the american screw. to this slowly and carefully on the aluminum.

good luck and happy flying

pt19 glyer

RE: Muffler Extension Problem
 

Double check your phone book for a shop in your area that supplies nuts & bolts to local shops (mechanics), if you find one go to the shop, don't call, and see if they can help. I did this in El Paso once and not only got what I needed but a couple other things and they didn't even charge me, Of course I had to stay and talk RC for an hour. ENJOY !!! RED