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Lycoming Mechanical Fuel Pump Available

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dreel(at)cox.net
Guest

Posted: Wed Jan 25, 2006 1:18 pm Post subject: Lycoming Mechanical Fuel Pump Available

I have a new fuel pump model LW15473 date code 3905 avialable for $200.  I'll pay shipping.  ACS list $254.95 plus shipping.  Good for engine models: IO-320, IO-360, AIO-360, HIO-360, IVO-360, IO-540, IGO-540, IO-720.  Here's the scoop:



I have an O360 which came from the factory with a low pressure fuel pump, an LW15472, which was recalled under a mandatory service bulletin.  The Cessna dealer, Dulles Aviation, of Manassas VA, removed this pump & incorrectly recorded the model number as LW15473.  The error was not caught by Cessna who shipped back a LW15473 which Dulles subsequently installed.  The 25-30psi this pump produces overwhelmed my carburettor's ability to stop the fuel flow & it only took me four days to diagnose why my new from the factory engine wouldn't run more than 10 seconds before dying with fuel dripping out the filtered air box because I suspected everything I had done first.  So, I bought a new low pressure pump from ACS and removed the one I have available.  Total run time on it is about 30 seconds.



What really bugged me though was that Dulles Aviation insisted they had done nothing wrong even though they agreed they had installed the wrong pump.  So, if any of you have to have this warrantee type of service done by a dealer, beware, and make sure they get the numbers, which can be hard to read, right.



Dave Reel - RV8A - Engine now running.

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sbuc(at)hiwaay.net
Guest

Posted: Wed Jan 25, 2006 1:48 pm Post subject: Lycoming Mechanical Fuel Pump Available

DAVID REEL wrote:

 	  Quote: 	
		   

 

 I have a new fuel pump model LW15473 date code 3905 avialable for

 $200.  I'll pay shipping.  ACS list $254.95 plus shipping.  Good for

 engine models: IO-320, IO-360, AIO-360, HIO-360, IVO-360, IO-540,

 IGO-540, IO-720.  Here's the scoop:

 

 I have an O360 which came from the factory with a low pressure fuel

 pump, an LW15472, which was recalled under a mandatory service

 bulletin.  The Cessna dealer, Dulles Aviation, of Manassas VA,

 removed this pump & incorrectly recorded the model number as LW15473.

 The error was not caught by Cessna who shipped back a LW15473 which

 Dulles subsequently installed.  The 25-30psi this pump produces

 overwhelmed my carburettor's ability to stop the fuel flow & it only

 took me four days to diagnose why my new from the factory engine

 wouldn't run more than 10 seconds before dying with fuel dripping out

 the filtered air box because I suspected everything I had done first.

 So, I bought a new low pressure pump from ACS and removed the one I

 have available.  Total run time on it is about 30 seconds.

<snip>
	




I thought I was the only one who had been through this fiasco!  



Wentworth sent a high pressure pump with my used O-320 engine. Like 

Dave's engine, mine would only run a few seconds before fuel would be 

pouring out the carb. After considerable time spent troubleshooting, I 

disgustedly had the carb in hand and was about to tear it apart when 

somebody mentioned "What are the odds you have a high pressure pump?".



The two pumps look identical. I used a Sharpie and wrote the correct 

part number on my new low pressure pump. This was one of those deals 

that in hindsight I should have figured out in minutes.......but didn't....



I think I still have the several-years-old used high pressure pump in 

case anybody wants it for a spare; I have no knowledge of its history.



Sam Buchanan

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Gary.A.Sobek

Joined: 09 Jan 2006
Posts: 217
Location: SoCAL USA

Posted: Wed Jan 25, 2006 2:11 pm Post subject: Lycoming Mechanical Fuel Pump Available

I helped  a friend with his IO-360 replace his mechanical fuel pump. The 

mechanial fuel pump was not making enough pressure to keep the engine 

running.  The new pump came out of a new box with the part number of a high 

pressure fuel pump.  The engine would not run more than 5 or 10 seconds.  

When we checked the new fuel pump, it had the part number of a low pressure 

fuel pump but the number on the box it came out of was high pressure.

The moral of this story is "In God we trust.  Everything else we check."  

This works even if you are a atheists.  Verify the part number on the part 

is what it should be.  Verify everything and trust no one.

Gary A. Sobek

"My Sanity" RV-6 N157GS O-320 Hartzell,

1,833 + Flying Hours So. CA, USA

http://SoCAL_WVAF.rvproject.com

----Original Message Follows----

From: Sam Buchanan <sbuc(at)hiwaay.net>

Reply-To: rv-list(at)matronics.com

To: rv-list(at)matronics.com

Subject: Re: Lycoming Mechanical Fuel Pump Available

Date: Wed, 25 Jan 2006 15:47:50 -0600

DAVID REEL wrote:

 > 

 >

 > I have a new fuel pump model LW15473 date code 3905 avialable for

 > $200.  I'll pay shipping.  ACS list $254.95 plus shipping.  Good for

 > engine models: IO-320, IO-360, AIO-360, HIO-360, IVO-360, IO-540,

 > IGO-540, IO-720.  Here's the scoop:

 >

 > I have an O360 which came from the factory with a low pressure fuel

 > pump, an LW15472, which was recalled under a mandatory service

 > bulletin.  The Cessna dealer, Dulles Aviation, of Manassas VA,

 > removed this pump & incorrectly recorded the model number as LW15473.

 > The error was not caught by Cessna who shipped back a LW15473 which

 > Dulles subsequently installed.  The 25-30psi this pump produces

 > overwhelmed my carburettor's ability to stop the fuel flow & it only

 > took me four days to diagnose why my new from the factory engine

 > wouldn't run more than 10 seconds before dying with fuel dripping out

 > the filtered air box because I suspected everything I had done first.

 > So, I bought a new low pressure pump from ACS and removed the one I

 > have available.  Total run time on it is about 30 seconds.

<snip>

I thought I was the only one who had been through this fiasco!  

Wentworth sent a high pressure pump with my used O-320 engine. Like

Dave's engine, mine would only run a few seconds before fuel would be

pouring out the carb. After considerable time spent troubleshooting, I

disgustedly had the carb in hand and was about to tear it apart when

somebody mentioned "What are the odds you have a high pressure pump?".

The two pumps look identical. I used a Sharpie and wrote the correct

part number on my new low pressure pump. This was one of those deals

that in hindsight I should have figured out in minutes.......but didn't....

I think I still have the several-years-old used high pressure pump in

case anybody wants it for a spare; I have no knowledge of its history.

Sam Buchanan

- The Matronics RV-List Email Forum -

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capsteve

Joined: 09 Jan 2006
Posts: 111
Location: NIAGARA FALLS NY

Posted: Wed Jan 25, 2006 7:58 pm Post subject: Lycoming Mechanical Fuel Pump Available

I couldn't get any fuel pressure from the mech pump on one of the 0360-a4m's

I bought brand new. After checking the pump and finding it worked fine we

tore off the accessory housing and found that lycoming installed the wrong

gear. So there was no cam to operate the pump. 

Steve dinieri



The moral of this story is "In God we trust.  Everything else we check."  

This works even if you are a atheists.  Verify the part number on the part 

is what it should be.  Verify everything and trust no one.



Gary A. Sobek

"My Sanity" RV-6 N157GS O-320 Hartzell,

1,833 + Flying Hours So. CA, USA

http://SoCAL_WVAF.rvproject.com

- The Matronics RV-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:

http://www.matronics.com/Navigator?RV-List

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