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<DIV>Guys, It's not all roses in webra-land. I have personally seen several big
problems with the Webras. </DIV>
<DIV> </DIV>
<DIV>a) The Webra has a bearing problem that will hopefully be fixed with the
new Boca stainless steel version. They rust and wear quickly. It is a very
narrow bearing and just might not be big enough for the props that we run.
Note, I said the props that we run, because we do load our engines up quite a
bit to keep the rpm's and hence the noise, down.</DIV>
<DIV> </DIV>
<DIV>b) They have a heat dissipation problem. Without going long... It is
not unusual to lose some power and subsequently find that the piston ring is as
soft as chicken wire. Pumps that are quotes, a bad batch, unquote, are being
misdiagnosed. they actually have been overheated.</DIV>
<DIV> </DIV>
<DIV>c) The mixture carb does two nasty things. First of all, it gets hot
and the O-ring on the mixture barrel sticks. This causes
mixture control-lag that is behind the throttle opening. Shows up as
gurgling if the delay is rich or heat if the delay is lean. You need a strong
rod from the servo to the mixture arm. Secondly, the settings are very
"fine" so that the soft mount 1/16" - 1/8" back and forth movement
between idle and full throttle can, and does, cause adverse throttle behavior.
[This is why I have not used them on OS 1.60's, even when offered a free
one!]</DIV>
<DIV> </DIV>
<DIV> These are my personal opinions based on personal
observations and running of these motors. Some folks are "married" to their
purchases and will go to any lengths to make them work and then will extol
the virtues of that product. There are also quite a few, shall we call them
"semi-sponsored" webra operators, most of whom are unusually silent? of course,
with any product, there are a whole bunch of folks who are running these
motors just fine. I'll wager that those who are running them successfully have
kept them on the rich side and are keeping them well ducted with cool air.</DIV>
<DIV> </DIV>
<DIV>That's my 2 cents for the week....</DIV>
<DIV> </DIV>
<DIV>Eric.</DIV>
<DIV> </DIV>
<DIV>P.S. if you asked me which Webra works the best I would say the
Blackhead 145 , steel-liner, with an OS 1.40 pipe. </DIV>
<DIV> </DIV>
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