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Engine basics => Engine set up tips => Topic started by: Martin Quartim on July 19, 2010, 11:11:51 PM

Title: Header Muffler for Rear Exhaust Engines
Post by: Martin Quartim on July 19, 2010, 11:11:51 PM


I just got today a Header for a pipe engine from Randy and start thinking how I could easily convert it on into a header muffler.

The Dubro Exhaust Deflector for 35-90 PN 697, fits perfectly inside the header with a snug fit. Now how to make sure the darn deflector will not come out, specially in a contest flight months and months later?

I thought about one possible way: pushing the deflector into the header so the last rib on the deflector is past about 1/16 of the edge of the header and fill the end of the header with JB Weld.

JB Weld should attach well to the header inside wall blocking the Deflector to came out. It will probably not glue the deflector, but it will make a barrier against the ring on deflector.

Before I try this I'd like to hear some of your thoughts  and perhaps some one have already tried and could tell us if it worked or not.

Martin
Title: Re: Header Muffler for Rear Exhaust Engines
Post by: Mark Scarborough on July 20, 2010, 09:31:06 AM
Martin,
you might talk to Randy Powell, I think he did some pictures quite a while back of a header muffler he did. similar idea, but I think he plugged the end with a machined bit, then put a outlet on it, but I cant recall exactly, its been a while back