Bartone Exhaust

Farnold · Post by **Farnold** » Sun Aug 04, 2002 9:01 pm

Can anyone describe their experiences with the Bartone exhaust. Is there any benefit from it other than cleaning up the lower cowling? What is the installation like?

4583C · Post by **4583C** » Mon Aug 05, 2002 9:19 pm

IMHO having two less protrusions to fit the lower cowling over while reinstalling said cowl is the biggest advantage. Most users claim less noise in the cabin which my limited experience agrees with. I think the plane sounds better during a flyby or while taxiing with the window open. If we ever get my project back together it will have the bartone pipes installed. Paul

Post by **GAHorn** » Tue Aug 06, 2002 6:25 pm

I've been told by owners with the Barton (as well as the Benham) exhausts, that the sound definitely is different, but actually slightly louder. There certainly is an advantage when installing the cowl, but I think another benefit is reduced drag, and better engine cooling. Without that airpressure entering the lower cowl thru the "fangs" opening, there should be greater differential of pressure between the "high" pressure area, and the "low" pressure area. Although giving up originality, and having to deal with gascolator re-location issues (in most cases), it seems a good mod to me. I'd do it if replacing the tailpipes for exhaust maintenance.

rmnelson · Post by **rmnelson** » Sat Aug 24, 2002 6:25 pm

We got a field approval for the Bartone Exhausts and the pipes are great. The local feds spent lots of time reviewing the installation; the 337s we got from the Association were not enough to get approval. The FAA required that we show less than 2.5" HG back pressure; this test took some time and required drilling a hole in one of the pipes to plumb a manifold pressure gauge. The shop fabricated a stainless heat shield between the gascolator and the right side pipe, but unlike some others we didn't have to move it.

The pipes end aft of the firewall so I think we are less likely to get exhaust into the cockpit, particularly at high angle of attack/high power. I won't claim that it is any quieter, but as others have said it does sound better. I can't feel each exhaust pulse like we could before. No more exhaust stain on the cowl. I would definitely do it again.

planepilot1 · Post by **planepilot1** » Sun Aug 25, 2002 4:20 pm

I installed mine about 5 yrs ago. It does change the sound (better) and looks better (my opinion). Without a noise detection devise I would be hard pressed to say it is quieter, just different. I did have to fabricate a couple of heat shields for my engine mount as I felt the exhaust pipes, expecially on the left (port) side, was too close to the mount. When I first installed them I put the suggested round bar stock attached to the engine mount and suspended the pipes via muffler hangars (at the rear of the pipes). At engine overhaul I changed the hangars to the type where there were two hangars attached to the firewall. In my opinion a much better way to do so. I have not heard of others having any problems installing the pipes, but the ends on mine would not slide up over the stubs coming out of the mufflers and I found it necessary to go to an automotive muffler shop and have them use their expansion mandrel (twice) to enlarge the openings so they would go on the stubs. The only negative I have encountered, and it is only an inconvenience, is that it is more difficult to get to the quick drain on the oil sump, especially when the engine is hot, but I would still put the extensions on. Good luck, I think you will be pleased with the results.

Frank Stephenson N6888A

Farnold · Post by **Farnold** » Wed Aug 28, 2002 2:21 am

Thanks for the response everyone. I've been having some problems with the stock exhaust rubbing up against the exhaust pipe cowling opening. This is what has prompted the thought of the Bartone system. BTW at OSH I saw a 170 with rubber like ring seals around the exhaust pipes. The owner's thoughts were that this was the original setup to help seal the air flow in the cowling. Will the Bartone system installation interfere with my installed El Reno oil filter unit that hangs down in this general vicinity?
C170

Bill Venohr · Post by **Bill Venohr** » Wed Aug 28, 2002 2:32 am

There is an excellent picture on the old 170 Yahoo site--its a pain to get around on the site, but the pictures of the Bartone exhaust pipes were well done.

JDH · Post by **JDH** » Wed Aug 28, 2002 3:12 pm

I have a '52 with ElReno adaptor and the Bartone stacks. The bracket to support (goes from one side of engine mount to the other) comes close but no problem removing/installing the spin on filter. Just changed the oil and filter yesterday as a matter of fact. I did not have to change the gascolator's position either; there was lots of room. JD

Post by **GAHorn** » Wed Aug 28, 2002 6:46 pm

JDH wrote:I have a '52 with ElReno adaptor and the Bartone stacks. The bracket to support (goes from one side of engine mount to the other) comes close but no problem removing/installing the spin on filter. Just changed the oil and filter yesterday as a matter of fact. I did not have to change the gascolator's position either; there was lots of room. JD

The problem with the gascolator re: the Bartone tailpipes is that most airplanes gascolator sits directly above the tailpipe, which creates an extreme fire hazard should the gascolator leak or fail.

OTIS · Post by **OTIS** » Sat Nov 23, 2002 10:42 pm

I have two numbers for Pat Bartone. Neither are connected.
(860-246-5988 [April Flypaper]and 813-996-2430). Does anyone have a
current number? Thanks in advance.

knesbitt · Post by **knesbitt** » Sun Nov 24, 2002 2:31 pm

I just install Mr.Bartones pipes and I love them. I think they sound GREAT and in my opinion quieter. If you decide to do this e-mail me and I will tell you about one problem you migt have. It involves moving the gascolator. That is not hard but requires some thought. I have a good sheet metal man around me and his filling in of the exhaust holes looks good. Other than taking away from the original design of the airplane I do not see a downside of this change.
Ken Nesbitt N3607D

flyguy · Post by **flyguy** » Mon Nov 25, 2002 1:44 pm

OCTOBER 2002 FLYPAPER: PAT BARTONE, FOR SALE , PIPES, $275.00, 860-267-0719

AR Dave · Post by **AR Dave** » Mon Sep 27, 2004 5:05 am

Trying to find a FAA Inspector to approve the Bartone installation. Is there any left? George do we have any 170 members that are currently FAA Inspectors, that might help?

AR Dave · Post by **AR Dave** » Sat Dec 04, 2004 5:52 pm

In search of a field approval for the Bartone Exhaust, Iâ€™ve been directed to gather some information. My mechanic needs 3 examples to show the FAA.
I need to put together a request package, including pictures of the modification (if possible with cowl off also) and copies of that planeâ€™s field approval. But Iâ€™ll take anything I can get, suggestions, leads, etc. Our hopes are to locate an inspector that would be future friendly to this 170 Exhaust Modification.
Thanks,
Dave

jlwild · Post by **jlwild** » Sun Dec 05, 2004 6:41 am

Dave,

I installed Bartone pipes on my plane over a year ago. After much frustation with the local FAA people, I contacted Bob Henderson (IA) in Cypress, TX who obtained approval thru the Houston FAA office. He used paper work from another Cessna 170 he did five years earlier to obtain my approval. I can send you copies of the paper work, pictures and other documentation. Send me your address and I will mail you copies next week.

Jim

The International Cessna^® 170 Association

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