I'm getting dangerously close to running in the engine on my first
R/C plane (Sig LT-40). Would a high temp anti-sieze be recommended on the muffler mounting hardware ?

TIA
Mike

Mike,

I'm not sure what "high temp anti-sieze" is but if it's a Loc-tite type product then yes. Mufflers bolts are prone to vibrating off so I always use Loc-tite on them. Hopefully this answers your question. If not, just take it as advice in advance

I see...thread lock. (Anti -Sieze does just the opposite) So I guess that hardware siezing up in the engine is not a problem. That's good because all I need is a tiny dab of anti-sieze on my finger and within moments it's all over me. LOL

Thanks

Mike

Here's a tip,

run your engine up to temp, and get completely warmed up, then shut it off and re-tighten the muffler screws.
Do this once or twice and they wont come off, and you won't need any loctight or antiseize.

Good luck,

Hello MJ,

Thread lock is as required as an engine!! I nearly lost the muffler because I had forgotten to use some. I only knew something was up due to a change in engine note so I brought the plane in ASAP. Just remember to get the blue stuff and NOT the red stuff. You can get the blue thread lock from your local hobby shop!

Good Luck

A good place to use what you call antiseize(microballoons suspended in a lube) on a new engine is on the threads of the very hard steel body of the glow plug,and the very soft body of the aluminum head,which helps to avoid stripping the head threads if you get enthusiastic when tightening the plug.
You can get loctite at any auto supply place,and most hardware stores too.The above is correct...DONT USE THE RED STUFF!
In addition to the actual mounting hardware,any bolted connection on the muffler body will eventually work loose and should be treated.....a good example is the rear body cone on the OS LA series mufflers held on by a single nut and long bolt.Lose this nut,and you lose the rear body of the muffler and its new muffler time.
Bart,s rule always applies too,and states that if anything falls off the model in flight,it will always happen over the deepest, densest, farthest away,most infested part of your flying area,and will immediatley be snapped up by the lurking parts monster to feed its young, and will never be seen again!

Anti-Seize is for preventing dialectric corrosion between aluminum and ferous metals such as steel. you should add a tiny dab to any aluminum part being attached to a steel part or vice versa.

except of course, for any fastener. whether aluminum steel or otherwise if its a metal to metal contact use the blue loctite as has been mentioned.

I use silicone on my muffler bolts to keep them from coming out. Works great!

Hmm... interesting, some say you don't need loctite, some say it's a "must have". Personally, I've never used it on anything but Giant Scale, and I've never had a muffler come off of any of my 40(2 stroke) or 91 (4 stroke) planes.

I have read a lot of posts about flyers having to replace their lost mufflers thaat fell out of the sky. I know that it happens. A flyer at our field didn't notice that his plane was getting noisy until I went to the flight line and told him. The engine was also starting to run rough. When he listened to the racket the plane was making, he landed it. Both bolts were almost completly out of the muffler. Another minute and I am sure that his muffler would have left the plane.

i just simply do not see any reason NOT to use loctite. I'm very new to planes, but believe me, years of racing nitro powered r/c cars has tought me the value of this stuff.

If metal is threading into metal, give it a dab of loctite and sleep well at night.