Webra Problems

[RC Steve Sterling]

This morning, Gordon and I were at the field 'cussing and discussing the
Webras, while practicing for next week's Fun & Sun. Mine, like yours Keith,
runs fine.

We were going talking through the systems and Gordon mentioned that someone
thought that the stock Webra pumps could loose prime if they got a slug of
air.

Ah ha-- a difference. I use one of those bubbleless fuel tanks, MK I
believe. Got it out of Central Hobbies.

I also think his pump pressure is too high. His high speed needle is at 1
1/4 turns out, mine is at 1 3/4 to 2 turns. I had to reduce my pump pressure
when I first got it.

But Keith you are right. Several things gotta be right or it doesn't want to
behave. Must have a type F plug or equivelent. Must have the tuned pipe the
right length (at least if its a Greves). Must have the pump pressure right
(not too high). Right fuel. No crud in the pump.

Maybe some luck?

-----Original Message-----
From: discussion-request at nsrca.org
[mailto:discussion-request at nsrca.org]On Behalf Of Keith Black
Sent: Sunday, August 01, 2004 11:57 AM
To: discussion at nsrca.org
Subject: Re: Webra Problems


Dennis,

I'm not trying to convince Gordon not to change engines, I'm not associated
with any Hobby related industry and have no vested interest in Webra. If
changing engines will reduce his frustration and allow him to enjoy pattern
then that's probably what he should do. I'm just letting him, and others,
know that I've personally had success with the engines and I'm offering my
assistance if he'd like to get the Webra working and save some money.

Keith Black

----- Original Message -----
From: "Dennis Cone" <cone.man at verizon.net>
To: "NSRCA" <discussion at nsrca.org>
Sent: Sunday, August 01, 2004 11:25 AM
Subject: Webra Problems


> Keith,
> I also was using a Webra and I also fly with Gordon. I have never owned a
> four stroke and when UAV offered the Bully's I immediately bought the 120
> and then the 145. These also had their quirks but were great engines. (I
> still have the 145) So having only owned two strokes and using them to fly
> pattern for the last ten years I feel fairly competent in my tuning
> abilities. But the Webra taxed those abilities to the point that after
> fighting it for the entire summer and the last dead stick which resulted
in
> an off field  landing which removed the fixed gear from the plane I said
> enough was enough. So I removed the Webra and put in the OS 140 Rx, which
> flew yesterday and performed wonderful. Now I can concentrate on flying
> again instead of will it be running at the bottom of the Humpty.
> Some history on the Webra is I was using the MC carb with the Futaba 9Z
mix
> programming. Bolly pipe, 16.5X12W prop and the Bully two plug head. And I
> very seldom out of several gallons of fuel made a power on landing. This
> motor had unbelievable power and always ran great on the ground. I believe
> the pump is the problem but being so late in the year it is time to forget
> the fiddling and move on. I can sympathize with Gordon and have witnessed
> his frustration. We are both going to try to work this out but it will
have
> to be after the contest season is over.
> I would like to hear from the group on their experience with the Mintors
or
> their knowledge of others experiences.
>
> Dennis Cone
>
>
>
>
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