[NSRCA-discussion] OS 140Rx pump question

Tue Sep 26 21:19:57 AKDT 2006

Tom, you are supposed to run a filter <G>.   Nat

----- Original Message ----- 
From: "Koenig, Tom" <Tom.Koenig at actewagl.com.au>
To: "NSRCA Mailing List" <nsrca-discussion at lists.nsrca.org>
Sent: Tuesday, September 26, 2006 10:47 PM
Subject: Re: [NSRCA-discussion] OS 140Rx pump question

>
> John,
>
> Also -don't be frightened about pulling the pump apart. I've 'repaired' 
> quite a few by pulling them apart and removing half the runway out of 
> them! Just beware of a few tiny little 'Geeeezzuz' parts. Do it carefully 
> and you wont have any problems.
>
> Tom
>
> -----Original Message-----
> From: nsrca-discussion-bounces at lists.nsrca.org
> [mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of John
> Pavlick
> Sent: Tuesday, 26 September 2006 1:26 PM
> To: NSRCA Mailing List
> Subject: Re: [NSRCA-discussion] OS 140Rx pump question
>
>
> OK, I usually run Magnum but I haven't picked up my winter supply yet. 
> Guess
> I should take a ride...
>
> John Pavlick
> http://www.idseng.com
>
>
>> -----Original Message-----
>> From: nsrca-discussion-bounces at lists.nsrca.org
>> [mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of
>> Lance Van Nostrand
>> Sent: Monday, September 25, 2006 10:33 PM
>> To: NSRCA Mailing List
>> Subject: Re: [NSRCA-discussion] OS 140Rx pump question
>>
>>
>> Add this advice to mine. I support this.  Magnum 15% also is fine.  I've
>> tested a lot of fuels and would not put Omega through a pumped
>> engine ever.
>> CoolPower has the highest detergent factor of all the fuels I've
>> tested so
>> it is an excellent suggestion to start wtih.
>> --lance
>>
>> ----- Original Message -----
>> From: "Wayne Galligan" <wgalligan at texasairnet.com>
>> To: "NSRCA Mailing List" <nsrca-discussion at lists.nsrca.org>
>> Sent: Sunday, September 24, 2006 7:51 PM
>> Subject: Re: [NSRCA-discussion] OS 140Rx pump question
>>
>>
>> > First thing I would do is switch over to regular Cool Power.
>> Omega has
>> > castor oil and it can gum up or varnish in the engine.  You will have a
>> > bear
>> > of a time getting the rod to slide on the piston wrist pin
>> because of the
>> > castor gumming up on the pin.  The regular Cool Power uses synthetic 
>> > and
>> > does not gum up on any of the parts.
>> >
>> > The pipe length sounds about right.  But one inch short and it will run
>> > fat
>> > in the midrange.  Try a little longer and switcging to Cool Power 15% 
>> > or
>> > 20/20 blend
>> >
>> > Wayne
>> >
>> >
>> > ----- Original Message -----
>> > From: "John Pavlick" <jpavlick at idseng.com>
>> > To: "NSRCA Mailing List" <nsrca-discussion at lists.nsrca.org>
>> > Sent: Sunday, September 24, 2006 7:49 PM
>> > Subject: Re: [NSRCA-discussion] OS 140Rx pump question
>> >
>> >
>> >> Sorry - Aeroslave pipe, APC 15.75x10 3-blade (re-pitched by Dave L.).
>> >> Fuel
>> >> is morgan Omega 15%. The pipe is currently set at 31 3/4" 
>> >> straight-line
>> > from
>> >> plug center to the end of the pipe with an OS O-ring header. I
>> know this
>> >> measurement only makes sense if using the same header or at least one
>> >> with
>> >> the same total length.
>> >>
>> >> John Pavlick
>> >> http://www.idseng.com
>> >>
>> >>
>> >> > -----Original Message-----
>> >> > From: nsrca-discussion-bounces at lists.nsrca.org
>> >> > [mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of
>> >> > Wayne Galligan
>> >> > Sent: Sunday, September 24, 2006 8:31 PM
>> >> > To: NSRCA Mailing List
>> >> > Subject: Re: [NSRCA-discussion] OS 140Rx pump question
>> >> >
>> >> >
>> >> > John,
>> >> >
>> >> > What pipe? What fuel? What prop are you using?
>> >> > Lengthen your pipe till the midrange richness goes away.  My OS
>> >> > will do the
>> >> > same thing.  The needle on mine is about 3/4 turn out also .  I 
>> >> > would
>> > not
>> >> > mess with the pump till you have tried lengthening the pipe.  This
>> > almost
>> >> > always fixes that problem.  Less load(smaller prop) on the engine
>> > shorten
>> >> > pipe, more load(larger prop)lengthen the pipe.
>> >> >
>> >> > Wayne Galligan
>> >> > ----- Original Message -----
>> >> > From: "John Pavlick" <jpavlick at idseng.com>
>> >> > To: "NSRCA Discussion" <nsrca-discussion at lists.nsrca.org>
>> >> > Sent: Sunday, September 24, 2006 12:29 AM
>> >> > Subject: [NSRCA-discussion] OS 140Rx pump question
>> >> >
>> >> >
>> >> > > I'm having some trouble with my OS 140Rx and it seems to me that
>> >> > > maybe
>> >> > > somebody played with the pump (I bought this motor used). Here's
>> > what's
>> >> > > going on. The main needle wants to be at about 3/4 turns out. Not
>> >> > > even
>> > a
>> >> > > full turn. If I open it to 1 1/4 turns it's slobbering
>> rich. The idle
>> > is
>> >> > > rich even with the adjustment turned fully clockwise. It is
>> >> > flyable, but I
>> >> > > know something isn't right. This motor also has a
>> dual-plug OS head.
>> >> > > I
>> >> > have
>> >> > > an "F" plug in the center and an "8" in the rear. The transition
>> >> > > isn't
>> >> > > great, especially at about 1/2 throttle. On the ground it will
>> > actually
>> >> > load
>> >> > > up sometimes. In the air it's not so bad but it doesn't sound
>> >> > right. If it
>> >> > > had a Perry pump I'd back off the pressure and that would
>> >> > probably fix it.
>> >> > > Like I said, I'm thinking someone played with the pump for 
>> >> > > whatever
>> >> > reason.
>> >> > > Is there any way to set it up as it was originally or do I have
>> >> > to send it
>> >> > > back to the service center?
>> >> > >
>> >> > > John Pavlick
>> >> > > http://www.idseng.com
>> >> > >
>> >> > > --
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>> >> > >
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>> >> >
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Checked by AVG Free Edition.
Version: 7.1.405 / Virus Database: 268.11.7/437 - Release Date: 9/4/2006