webra 160 - meticulously clean

Tue Oct 19 06:49:30 AKDT 2004

I have coupler material and spring clamps that will DEFINITELY seal and not leak.  Contact me, if interested!

You CAN make a 2C "clean"...it just takes some attention.

Bob Pastorello
> 
> From: Jim_Woodward at beaerospace.com
> Date: 2004/10/19 Tue AM 10:40:05 EDT
> To: discussion at nsrca.org
> Subject: RE: webra 160 - meticulously clean
> 
> Hi Tony,
> 
> I hope you are doing well in Phoenix.  I purchased and used the Johnson 
> header that Central sells and used it at the 23.5" dimension.  The engine 
> ran perfectly on the ground, but did not idle down in flight, or for 
> landing, like the 160 I have on the MACs setup (24.25" to first baffle). 
> This header broke within less than 10 flights.  The pipe portion broke 
> cleanly off around the weld joint.  In a bind (right before the Apopka 
> contest), I went to a marine store and had them re-weld the header.  After 
> the repair, the header broke again (6 or so flights), but this time about 
> 1.0" above the weld. I then ordered the MACs header as I have used 
> previously on 1.45s and one 160.  Central hobbies was very gracious and 
> replaced the Johnson header with a Hatori steel header, which at this 
> point I have not used.  The Hatori is shorter than the Johnson header. 
> 
> Then, the old and much used MACs header I had on the Lazuite broke!  Good 
> thing I ordered two MACs headers.  At this point each MACs header has been 
> working fine.  Jim Ivey, Ken B., and I bent one of the MACs headers the 
> night before the Apopka contest in the hotel room by blocking the header 
> in certain positions and using a hammer ting it in place.  Actually, it 
> doesn't look that bad, fits perfectly, and definitely beats trying to use 
> a torch to heat up the header and then bend somehow (which we tried at 
> first).
> 
> Thanks,
> Jim W.
> 
> 
> 
> 
> 
> 
> "Tony Quist" <quist23 at cox.net>
> Sent by: discussion-request at nsrca.org
> 10/19/2004 10:21 AM
> Please respond to discussion
> 
>  
>         To:     <discussion at nsrca.org>
>         cc: 
>         Subject:        RE: webra 160 - meticulously clean
> 
> 
> Jim,
>  
> Are you running the Johnson header that Central Hobbies sells?  If so what 
> length are you running it.  I saw that Matt K was running 24 inches to the 
> first baffle.  My header at full length only gives me 23.5 inches.
>  
> I have test run the engine and there are leaks where you say.  I will rtv 
> the areas and put hose clamps on the coupler.
>  
> Tony Quist
>  
> -----Original Message-----
> From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org] On Behalf Of Jim_Woodward at beaerospace.com
> Sent: Tuesday, October 19, 2004 7:09 AM
> To: discussion at nsrca.org
> Subject: RE: webra 160 - meticulously clean
>  
> 
> I installed one headshim in the two Webra 160 (Aggressor and Lazulite).  I 
> did not notice any difference in running, nor a compression reduction.   
> 
> Also, I've gotten mine to be meticulously clean while running.  After a 
> day's flying, there is almost no need to clean the plane.  Simple, but 
> with some routine checks here are the steps: 
> 1.  Use RTV between the header and engine (check or redue once a month if 
> residue develops on plane) 
> 2.  Ensure all bolts are tight (no lie) (engine will still run with loose 
> headbolt) 
> 3.  Header & Pipe coupler:  I found zip ties to not adequately seal the 
> silicone coupler.  For instance, if you examine the plane and there is 
> exhuast residue on the plane before the stinger, then you have a leak 
> somewhere.  After installing small hose clamps, and checking every so 
> often, there is no "exhaust" residue before the actual exhaust stinger. 
> 4. Pinch or disconnect fuel line:   If you pinch the fuel line in between 
> flights, or just plug the line, there will be little to few fuel drops 
> exiting the carburetor while the plane is sitting.   
> 5.  Run exhaust stinger extension: 
> 
> Thanks, 
> Jim W.
> 
> 
> 
> 
>  
> "Joe Lachowski" <jlachow at hotmail.com> 
> Sent by: discussion-request at nsrca.org 
> 10/19/2004 09:52 AM 
> Please respond to discussion 
>         
>         To:        discussion at nsrca.org 
>         cc:         
>         Subject:        RE: webra 160
> 
> 
> 
> Motor does not come with head shim. Got 3 motors that way. I haven't had a 
> 
> need to use them either.
> 
> >From: "George Kolotouros" <georgeman4 at cox.net>
> >Reply-To: discussion at nsrca.org
> >To: <discussion at nsrca.org>
> >CC: "George Kolotouros" <georgeman4 at cox.net>
> >Subject: webra 160
> >Date: Mon, 18 Oct 2004 18:54:56 -0700
> >
> >Hello everyone, been having some problems with my new webra. I finally 
> have 
> >the proper length on my es 160 pipe. 24in from plug to first
> >baffle. played with the mixture. Put it in the air. High speed is lean
> >richened it a few % on my radio. Later when I got home I decided to pull 
> >the head to look at the top of the piston. Looks fine, found out I dont 
> >have a head gasket. There parts breakdown shows that ther is one. What 
> >gives? George Kolotouros
> 
> _________________________________________________________________
> Don't just search. Find. Check out the new MSN Search! 
> http://search.msn.click-url.com/go/onm00200636ave/direct/01/
> 
> =====================================
> # To be removed from this list, go to http://www.nsrca.org/discussionA.htm
> and follow the instructions.
> 
> 
> 
> 
> 

Bob Pastorello, El Reno, OK, USA
rcaerobob at cox.net
www.rcaerobats.net

=====================================
# To be removed from this list, go to http://www.nsrca.org/discussionA.htm
and follow the instructions.