Anyone have a sure-fire way of keeping one of those rubber exhaust deflectors ON a 4-cycle muffler?

Jerry

I have used this on a 2 stroke muffler with excellent results and see no reason it would not also work for a 4 stroke.

Use your Dremel and cut 2 grooves on the exhaust end (nipple, tip, what ever you would like to call it ). Put your extension on and when you secure the straps, make sure each strap is located over one of the grooves. It forces the deflector material into the groove and makes it more secure.

Try a bead of JB Weld around the end of the exhaust. The bead helps keep the strap from sliding off.

I do the the same as Campy with one groove. It's also a good idea to use a wire so you don't loose it if it comes off. There is a filet in the elbow of the extension. Put a small hole in it and attach a string or fishing leader. Then attach the other end to the engine mount. Four stroke mufflers get hotter than two stroke mufflers. It may melt no matter what you do.


david

You can also just flare out the exhaust a little so it won't slide off. Heck, I even used a small needle nose pliers to flare the end. It looks bad, but when the deflector covers it, you don't see it anyway.

Patriot

I used a pipe clamp. Course, I did use a piece of cold water copper pipe (instead of the that wimpy rubber thingy) that had split from freezing, cut to size then put the pipeclamp. Perfect. The clamp forced the pipe around itself and stays on nice and tight and looks kinda scale.

I used a copper tube flaring tool and just flared the end a little

I use a !mm drill to drill right through deflector and silencer tail pipe from one side to the other then wire it on with soft steel wire ot use a small self tapping screw, add a single tie-wrap and Ive never lost one yet.

very bad idea because to unglue something thats glued with JB weld you have to heat it up and if you put it on a muffler its gonna get gueeey and it won't work

I think what Afra meant was put a thin bead of JB weld around the tip of the muffler outlet, let it dry and then put the deflector on over the bead and tighten down the zip ties above the bead of JB weld. I've used this on my 46FX and it has stayed on very nicely...even stayed on when I planted it in the ground!

ohh ok i get it now what you want to do

Thanks CP140,

I should have clarified to let the JB dry prior to sliding the deflector on over the bead.

Scott.

Having lost a series of these off the back of Mac's aluminum pipes, one day at the field I decided to try something FAST. Clean the end of the pipe outlet. Make a couple of wraps of un-waxed dental floss, or thick thread. Apply a bead of thick CA around the thread, all the way around it, then spritz with accelerator. Makes a real permanent "bead", VERY fast.

Jerry, Alas, I have not be able to keep rubber extensions on any of my 4 strokes. THey are just too hot!

Get a piece of Neoprene hose from Tower... Cut a groove in the muffler outlet, clamp it w/ a hose clamp. Over time Neoprene will get brittle around the outlet, but will not get hot enuff to melt.

Allen

gee, i have never had a problem with losing my deflector on my os .70. I use 2 zipties pulled on tight with needle nose pliers and have never lost it.

sean

Hi
I use a small piece of safety wire and safety pliers to make neat twist
do this on alot of places for a little insurence. left over habit from my
gokart racing days [ha ha]. but just use reg pliers. I'VE never lost any
thing yet.
LATER-PrOp-WaSh
remeber -SMALL PIECE!!!!

Having lost a silencer (not jsut the delfector) I also use the safety wire trick. I do a twist, reverse twist around the pressure nipple, then a loop and twist around the end of the silencer. If using a deflector I add a loop around the deflector and twist it down nice and snug.

Have also done the "poke a hole" trick and tie the deflector on. I think of this as the fatalistic view. Basically conceding defeat and that I expect it will come off but I will not loose it.

Eric

I have a lathe and cut a slot in the muffler tip. Used a cable tie pulled really tight. The deflector does not come off, BUT, after 20 flights or so, it rotates on it's own from vibration.

If anybody ever makes these things out of really hi-temp silicon, they are going to make a fortune selling them to 4 stroke owners.

Hi Guys,

Isn't it amazing how many ways there are to skin a cat?? I use the aluminium tubing from airconditioning heat exchangers as the extension/deflector and secure it to the muffler with two tiny self tapping screws with locktite on there threads. The only cost is the locktite.

Cheers,

Colin

I'm using the Dubro I think ones that are like silicon or some sort of bendable plastic/rubber. I have them on my OS .46 and Evo .46.
They have not fallen off yet.

Dave...