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Electric Pump : was : M14P Magneto

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tigeryak18t

Joined: 26 Sep 2009
Posts: 233
Location: PARIS FRANCE

Posted: Tue Jul 20, 2010 8:31 pm Post subject: Electric Pump : was : M14P Magneto

The electric pump is an interesting solution.

I am planning to change to unleaded 98 or 95 but have heard about potential problems of vapor lock and also prooblems tha could occur by mixing 100LL with unleaded.

Could we have more details on the installation of an electric pump on your plane..what kind of pump , where to put it , what kind of connections etc....

  Even pictures could be nice.



We are experiencing a big lack of 100LL at the moment in France.



best regards



Didier



2010/7/21 Vic <vicmolnar(at)aol.com (vicmolnar(at)aol.com)>

   	  Quote: 	
		  --> Yak-List message posted by: "Vic" <vicmolnar(at)aol.com (vicmolnar(at)aol.com)>

   

 Hi Stefan,

 

 you may have one faulty coil in the mag, but white spark plugs are no symptom of a shot coil - the contrary. As you said you are running the Yak on part auto fuel. And we had real trouble with that in hot weather - no take-off at 100 % power possible in the 18 T . A fill-up with avgas  helped, no other actions required. So the real problem was vapour bubbles in the fuel pump at high rpm. As this pump is not particularly good in sucking we added an electric pump in front of the service tank to feed the engine-driven pump. This Pierburg pump should deliver ~100 liters per hour at 0,5 bar nominally, but was at its limit in times, so we added another one for safety and since we never had a drop in fuel pressure to critical limits when using pure auto fuel for some years now. You´d be lucky to find avgas at 10 Dollars per gallon these days in our continent and this won´t be getting better we feel ...

    So it

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=305666#305666

 

 

 

 

 

 

 

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Didier BLOUZARD

didier.blouzard(at)gmail.com (didier.blouzard(at)gmail.com)

0624243672

  [quote][b]

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Didier Tiger YAK18T
Member of Commemorative Air Force
French Wing

Vic

Joined: 12 Aug 2008
Posts: 115
Location: Southern Bavaria

Posted: Wed Jul 21, 2010 2:45 am Post subject: Re: Electric Pump : was : M14P Magneto

Hi Didier,



look at the photo at the bottom of my previous posting showing the installation in the 18 T. The pumps are Pierburg 24 V and 0,5 bar, ~â‚¬ 90.- . The whole set is homemade and sits under the rear floor in front of the service tank including an extra one-way valve.

Vic

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tigeryak18t

Joined: 26 Sep 2009
Posts: 233
Location: PARIS FRANCE

Posted: Wed Jul 21, 2010 11:07 pm Post subject: Electric Pump : was : M14P Magneto

Hi Vic,



sorry I am in holydays and have a poor connection.

I will be able to see the pics as soon as I arrive in a hotel with a real internet connection.



Do you think I can install this kind of pump by myself???

  

Thanks very much for all your infos.



regards



Didier



2010/7/21 Vic <vicmolnar(at)aol.com (vicmolnar(at)aol.com)>

 	  Quote: 	
		    --> Yak-List message posted by: "Vic" <vicmolnar(at)aol.com (vicmolnar(at)aol.com)>

 

 Hi Didier,

 

 look at the photo at the bottom of my previous posting showing the installation in the 18 T. The pumps are Pierburg 24 V and 0,5 bar, ~€ 90.- . The whole set is homemade and sits under the rear floor in front of the service tank including an extra one-way valve.

   Vic

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=305715#305715

 

 

 

 

 

 

 

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 ===========

 http://forums.matronics.com

 ===========

 le, List Admin.

 ="_blank">http://www.matronics.com/contribution

 ===========

 

 

 

 	


-- 

Didier BLOUZARD

didier.blouzard(at)gmail.com (didier.blouzard(at)gmail.com)

0624243672

  [quote][b]

- The Matronics Yak-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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_________________
Didier Tiger YAK18T
Member of Commemorative Air Force
French Wing

psb777

Joined: 12 Aug 2009
Posts: 34
Location: UK

Posted: Thu Jul 22, 2010 1:49 am Post subject: Re: Electric Pump : was : M14P Magneto

 	  Vic wrote: 	
		  Hi Didier,



look at the photo at the bottom of my previous posting showing the installation in the 18 T. The pumps are Pierburg 24 V and 0,5 bar, ~â‚¬ 90.- . The whole set is homemade and sits under the rear floor in front of the service tank including an extra one-way valve.

Vic 	




Vic, the electric fuel pumps are fitted in series to the mechanical pump, is that correct?  If the mechanical pump fails can the electric pumps push the fuel through the broken mechanical pump?!?!?

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_________________
Paul Beardsell
G-PYAK http://beardsell.com/flying/g-pyak
Yak-18T http://beardsell.com/flying/yak18t

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