I finally dusted off my old lanier edge 540 73" bird, as i took the cowl off to inspect and get it back to flying condition, i noticed the pressure fitting on my saito 150's muffler could use tightening and i must have over tightened it and stripped it.....


my question is could i use jb weld with success and use the same pressure fitting? i have used it on 2 stroke glow with out any failure, but i hear 4 strokes generate more heat...i would hate for it to "melt" and cause me an unnecessary dead stick

Good question. JBWeld is supposed to be good to 500 deg F. I don't think your muffler would get that hot. [link=http://jbweld.net/products/jbweld.php]JBWeld link[/link]

I've seen JBweld on four stroke mufflers.

Maybe the guy didn't run them hard?

I fourstroke exhaust can be as high 550-600 Deg's F. Look at what it does to silocone extensions. It will also start to burn Teflon which is good for 500 sustained.

Tried to JB Weld the press. fitting on a friends Saito 1.80 muffler...it didn't take long to melt.

What we did was to find a bolt that would fit into the press. fittings old hole and sort of cut it's own threads...(we cut it real short first ) and we plugged the old hole. Then we made a new hole for the press. fitting.