Webra thread....
Jim_Woodward at beaerospace.com
Jim_Woodward at beaerospace.com
Mon Aug 2 08:33:19 AKDT 2004
I believe Lee, who lives in a high humidity area, recommends after run
oil.
Jim
James Woodward
Program Manager
B/E Aerospace Business Jet Group - Miami
9100 N.W. 105th Circle
Miami, FL 33178
(305) 459-7155 Office
(305) 459-7185 Fax
(954) 319-0873 Cellular
"Bill Pritchett" <phelps15 at comcast.net>
Sent by: discussion-request at nsrca.org
08/02/2004 12:31 PM
Please respond to discussion
To: <discussion at nsrca.org>
cc:
Subject: Re: Webra thread....
Jim:
Thanks, and no, it's not fun. I wonder what effect weather has on
bearings? I live in central Indiana, and we have very high humidity
levels...... upper 80- mid 90% the norm.... hmmmmmmmm...
Bill
----- Original Message -----
From: Jim_Woodward at beaerospace.com
To: discussion at nsrca.org
Sent: Monday, August 02, 2004 11:23 AM
Subject: Re: Webra thread....
Hi Bill,
Experiences like yours are not fun to go through. In 2002 I replaced the
rear bearing in a Webra 1.45R after 200 flights. That life span is good
for me. I never ran the fuel out or used after run oil (living in high
desert at the time). Matt K. is now running the original
piston/ring/liner from my first 1.45R. I started using the Webra 160 with
M/C carb 1 week before the 2004 Riverside, CA contest. This engine has
run so well for me day-in-out that I do not feel it necessary to convert
to electric (given the full spectrum of equipment & price considerations
at this time). The engine has very little vibration and I've gotten quite
used to not having to touch the engine when it is running to adjust it.
The speed envelope of the plane can be customized to your flying style -
once you learn the engine. I think there is two pieces of advice that
make a lot of sense when it comes to engine setups: 1. Run what you can
afford to replace, and 2. Run what you can get help with in the local area
with other flyers. In Lancaster, I had Jerry & Tony to help with my first
Webra 160 setup. Within 1/2 a tank from first flip I was flying the
plane. I've found that you need to increase the pump pressure by 1-2
turns.
Best of luck,
Jim W.
"Bill Pritchett" <phelps15 at comcast.net>
Sent by: discussion-request at nsrca.org
08/02/2004 10:58 AM
Please respond to discussion
To: <discussion at nsrca.org>
cc:
Subject: Webra thread....
All:
I have been "lurking" on this thread, and feel compelled to contribute -
our list is a tremendous source of information, and in this case,
"trends"..
- when I returned to flying after a six year layoff, the two stroke
motor was very attractive to me. I really like "plug and play"..... the
simplicity was simply overwhelming in my choice, even though the YS motors
I used to run were, in looking back, "plug and play"...
- I purchased the Focus ARF to quickly get in the air, and of course
was exposed to the Webra option through the Piedmont setup by Lee Davis
-following nothing but problems with the Webra motors (two of them) I have
come to the following conclusions:
1. The Webra motor, when it is setup and working, is fine. Problem is,
for me it won't be for very long. That's a real bother for those that
burn much fuel. A pattern motor should get hundreds, not dozens, of
successful flights before needing major work.....you know, having a prop
spinning through completion of landing. I use PowerMaster 15/16, OS F
plugs, APC 17x12...typical setup!
2. Webra needs to deal with the pump and rear bearings... the rear
bearings seem to be the source of most all of my problems... when they
start to go, particles of metal start ruining plugs and scratching the
cylinder wall. I have replaced one pump, and two bearings so far in two
motors. They are running fine for now, but again, I know that the
bearings will soon be going south.
3. Horizon is wonderful in support of the motor, but until Webra or an
aftermarket company comes up with a sealed/stainless rear bearing, Horizon
is swinging a "leaded bat". The rear bearings and their very limited life
span make it difficult in a typical pattern application....i.e. burning
lots of fuel.
4. The pump seems to work fine as long as the rear bearings are good....
at least for me, the rear bearings have caused my problems..... the pump I
replaced was done by Horizon because in frustration, I totally took the
pump apart, looking for anything. Didn't find anything, but managed to
destroy the pump. I know why we aren't supposed to completely disassemble
the pump - Horizon wants to send them back to Webra for evaluation, and
when they are not just taken off the back of the motor, that's not
possible. If you suspect the pump, send it to Horizon. My experience
with the pump is pretty simple..... if you can make the motor rich, the
pump is working just fine. When it's working, all the mixture stuff is
very easy to set....... and, I don't run the mixture control carb on
either motor...
5. I run the motor dry after use, and have used, and have not used
after run oil. If you fly a few times each week, I think our motors
should do fine by just being run dry.....sure, oil 'em up for storage, but
not to fly tomorrow!
6. I agree with those that suggest we shouldn't bang on a
company.........some guys claim to have had no problems! Trouble is, lots
of people have..... As the owner of two motors, headers, and pipes for
these, I'm in no hurry to trash them! Quite the contrary, I am anxious
for there to be a solution!
Did I mention the rear bearings?? Seriously, that's the biggy for me. As
soon as I get the header I ordered from Karl Mueller, I will be flying
with a new OS 1.40, EFI bearing set already installed. The Webras will go
in a drawer, pending bearing updates. Based upon my experience and what
I've seen as I've lurked on this thread, I'm going to call this whole
thing with the Webras a trend.
Regards,
Bill
Bill Pritchett
765-744-9322
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.f3a.us/pipermail/nsrca-discussion/attachments/20040802/37d58fd0/attachment.html
More information about the NSRCA-discussion
mailing list