[SPAM] Re: Re: Webra Problem

[Rcmaster199 at aol.com]

Another approach might be to bypass the source of the trouble spot entirely. 
One could use the Topper tank arrangement that has been discussed many times 
before for sport engines, and bypass the pump entirely. The standard TN carb on 
the webra responds pretty well to that arrangement. 

I have done that on the bench and was really tempted to do it at the Peach 
contest last weekend, when my trusty webra went south for a couple rounds. It 
turned out it was not the pump, eventhough I have had trouble this year with the 
previous pump. It was a bad plug.

MattK


Subj:Re: [SPAM] Re: Re: Webra Problem 
> 
> Date:6/11/2004 7:25:38 PM Eastern Daylight Time
> From:jivey61 at bellsouth.net
> Reply-to:discussion at nsrca.org
> To:discussion at nsrca.org
> Sent from the Internet 
> 
> 
> 
> Brian
> That is called a liquid manometer and is used in calibration labs with 
> mercury as a liquid. Thus the term inches of mercury takes meaning.Any liquid 
> could be used such as fuel and has no meaning except relative to fuel weight. I 
> have a pressure gage to use.A person could also use a vacuum gage like is used 
> to set old fashion carburators,but the vacuum gage would be installed in the 
> tank supply before the pump,thus measuring the pumps ability to pull the 
> fuel from the tank. Either way is relative to the pumps ability to function.
> A cline regulator is $60 + a check valve and is the easy way out.
>   
>   Jim Ivey
> 
> > 
> > From: Brian Young <b4598070 at yahoo.com>
> > Date: 2004/06/11 Fri AM 10:03:54 EDT
> > To: discussion at nsrca.org
> > Subject: [SPAM] Re: Re: Webra Problem
> > 
> > Just a thought on measuring the pump pressure. I
> > talked to John Fink (hope I got the name right, from
> > Denver area) who was having problems w/ setup on a
> > 1.60. He discussed measuring the pump pressure by
> > installing a T in the line between the carb and the
> > pump then ran a length of tubing up the wall. The
> > pressure will push the fluid up the line, I cant
> > remember how many inches of fuel he wound up with to
> > get the engine running right.
> > 
> > I repeated the procedure on mine and found it to work
> > well for measuring pressure, again I cant remember how
> > high the column was. This is easier than a low
> > pressure gage and anyone can do it, you can convert to
> > psi if you choose.
> > 
> > 
> > --- jivey61 at bellsouth.net wrote:
> > >   Hey guys
> > >  I can't beleive as much as we have had pump
> > > problems no one has put a pressure gage on a good
> > > running Webra to see exactly what the pump pressure
> > > is. I include myself here because I had many
> > > problems with my Webra. I only solved my problem
> > > with a cline regulater and tank pressure.
> > > If we knew what this pressure was we could compare a
> > > poor running engine with a good one. Also this would
> > > give you a benchmark to start your setup on a new
> > > engine. Just some tho'ts for Webra people.
> > > 
> > > Jim Ivey
> > > 

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