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Pulsar-List Digest: 17 Msgs - 09/12/12

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Bob H

Joined: 01 Dec 2006
Posts: 43

Posted: Thu Sep 13, 2012 12:41 pm Post subject: Pulsar-List Digest: 17 Msgs - 09/12/12

Haveflown plane since hiccup and it runs fine. I concluded that problem was

momentary vaporlock. Had I kept boost pump on during takeoff, it would have

provided coldfuel to system and eliminated the vaporlock. Will do that

routinely now.

Bob H

[quote] From: Pulsar-List Digest Server <pulsar-list(at)matronics.com>

 Reply-To: <pulsar-list(at)matronics.com>

 Date: Wed, 12 Sep 2012 23:58:23 -0700

 To: Pulsar-List Digest List <pulsar-list-digest(at)matronics.com>

 Subject: Pulsar-List Digest: 17 Msgs - 09/12/12

 

 *

 

  =================================================

    Online Versions of Today's List Digest Archive

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 Today's complete Pulsar-Lit Digest can also be found in either of the

 two Web Links listed below.  The .html file inclues the Digest formatted

 in HTML for viewing with a web browser and features Hyperlinked Indxes

 and Message Navigation.  The .txt fil includes the plain ASCII version

 of the Pulsar-List Digestand can be viewed with a generic text editor

 such as Notepad or with a web browser.

 

 HTML Version:

 

     

 http://www.matronics.com/digest/digestview.php?Style=82701&View=html&Chapter=2

 012-09-12&Archive=Pulsar

 

 Text Version:

 

     

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 12-09-12&Archive=Pulsar

 

 

  ================================================

    EMail Version of Today's List Digest Archive

  ================================================

 

  

            ----------------------------------------------------------

                            Pulsar-List Digest Archive

                                       ---

                      Total Messages Posted Wed 09/12/12: 17

            ----------------------------------------------------------

  

  

 Today's Message Index:

 ----------------------

  

      1. 06:27 AM - Re: [Pulsar-Aviators] 912 Hiccup  (Bob Heiser)

      2. 07:18 AM - Re: Re: [Pulsar-Aviators] 912 Hiccup

 (barrynorman(at)comcast.net)

      3. 08:04 AM - Re: Re: [Pulsr-Aviators] 912 Hiccup  (Bernard Wilder)

      4. 09:00 AM - Re: Re: [Pulsar-Aviators] 912 Hiccup

 (barrnorman(at)comcast.net)

      5. 09:19 AM - Nose gea needed  (Bigfootf2013)

      6. 09:36 AM - Re: Re: [Pular-Aviators] 912 Hiccup

 (barrynorman(at)comcast.net)

      7. 09:36 AM - Re: Re: [Pulsar-Aviators] 912 Hiccup  (Barry J Edwards)

      8. 10:02 AM - Re: Re: [PulsarAviators] 912 Hiccup

 (barrynorman(at)comcast.net)

      9. 10:18 AM - Re: Re: [Pulsar-Aviators] 912 Hiccup  (Barry J Edwards)

     10. 10:34 AM - Re: Re: [Pulsar-Aviators] 912 Hiccup

 (barrynorman(at)comcast.net)

     11. 10:46 AM - Re: Re: [Pulsar-Aviators] 912 Hiccup  (Dennis Adams)

     12. 10:52 AM - Re: Re: [Pulsar-Avitors] 912 Hiccup  (Cd)

     13. 11:29 AM - Re: Re: [Pulsar-Aviators] 912 Hiccup  (Bernard Wilder)

     14. 12:14 PM - Re: Re: [Pulsar-Aviators] 912 Hiccup  (Ron Koval)

     15. 12:49 PM - Re: Re: [Pulsar-Aviators] 912 Hiccup

 (barrynorman(at)comcast.net)

     16. 01:16 PM- Re: Re: [Pulsar-Aviators] 912 Hiccup  (HUGH COULTER)

     17. 07:13 PM - Re: Re: [Pulsar-Aviators] 912 Hiccup  (Keith Palmer)

  

  

  

 ________________________________  Message 1

 _____________________________________

 

 

 Time: 06:27:48 AM PST US

 From: Bob Heiser <w7ikt(at)fly-web.us>

 Subject: Re: [Pulsar-Aviators] 912 Hiccup

 

 Bob,

 This has some similarities to my accident.  I believe the electric fuel

 pump blocked fuel flow in my plane.  When the fuel pump was removed I

 could not blow thru it in ither direction, shouldhave been able to in

 the direction of flow.  After shipping the fuel pump to the NTSB it

 operated normally.  Do you have  bypass and check valve around the

 electric fuel pump?

 *God Bless

 Bob Heiser W7IKT*

 On 9/10/2012 6:23 PM, Bob Hartunian wrote:

> 

> Flew out locally for bkfst on Sunday, past mountains to flatlands and

> landed and all was fine. Got back into plane 45 min later and started

> ufine. Did normal runup and had 5 gal in left tank, full right tank,

> running off left, all was fine.

> Took off normally and did another normal left crosswind turn toward

> home and mountains. All indications normal including fuel pressure.

> Climbing at 500 fpm, 100 mph, engine around 5100 rpm, when suddenly

> engine rpm rops to almost idle. No shaking or vibes. Immediately

> icked on electric fuel pump but saw no indications for low uel

> pressure, and engine came back normally. I don't hink the fuel pump

> really did anything as engine just reained rpm and flew perfectly all

> the way home for anoher 20 min. out over desert just in case.

> I pulled cowl and checked things visually but no obvious problems.

> Don't have a good explanation for why rpm dropped.

> Bob H

> 

> 

> __,_.____

 

 

 ________________________________  Message 2

 ____________________________________

 > 

 Time: 07:18:35 AM PST US

 From: barrynorman(at)comcast.et

 Subject: Re: Pular-List: Re: [Pulsar-Aviators] 912 Hiccup

 

 

 I had an event this summer that was similiar bt I don't think it had anyth

 ing to do with the fuel pump. It was a fairy warm day and I had taken my s

 on up for a ride in the Pulsar III and retured after a 30 minute flight wh

 ere everything was perfectly normal. I shut he plane down for a few minute

 s while we loaded another passenger and had  very difficult time restartin

 g the plane. This was not anything new i this situation as I think the fue

 l starts to boil in the bowls making it dificult to start and get fresh fu

 el in due to the pressure in the bowls. I finaly got it started and it ran

  rough for a few minutes but cleared up.I taxied to the runway and as I fe

  d in power for takeoff, the RPM dropped and the engine quit. The plane ref

 used to restart so I brought it back to the hanger. I came back the next da

 y and the plane stted right up and ran fine. This is a pattern I've notic

 ed=C2-on my plane that appears to be vapor lock on warm days. Once those

 carb bowls get heat soaked from sitting, the problem shows up.

 

 

 Barry 

 

 

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MyronTruex(at)comcast.net
Guest

Posted: Thu Sep 13, 2012 3:41 pm Post subject: Pulsar-List Digest: 17 Msgs - 09/12/12

I too learned to turn the fuel pump on during takeoff and landing. I had the

issue where you couldn't blow through the pump and bought a new one. As for

the 45 degree angle I recall having mine mounted that way too. I installed a

clear glass fuel filter near the fuel pump so could actually see fuel versus

using a pressure monitor. 



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