Re: [Chrysler300] ethanol-eaten fuel pumps
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Re: [Chrysler300] ethanol-eaten fuel pumps





Hello 300’ly to all!
    ANATHEMA!!  I gave my 300C fuel pump that worked swell to John Begian for his C project for the cost of shipping and replaced it with a 5 psi electric pump from Hemi Hot Heads.  It is a non-racing pump that is engineered for dual carb hemis.  I located it on the frame rail where I had my electric priming pump in front of the passenger rear wheel with a stone guard beneath it.  I insulated it from the frame rail with a rubber pad so it doesn’t make a racket like a woodpecker on the roof.  The major reason was vapor lock.  The 392 mechanical pump is just beneath the exhaust manifold and the metal lines go right next to it on the rise to the front fuel bowel and hug the water pump area for the upper radiator hose connection.  I am fortunate to purchase ethanol free unleaded 91 octane easily in Lawton, Oklahoma.  Still modern fuels burn up to 200 degrees F hotter than the ones formulated back in the time of the early letter Cars.  There is a reason that fuel pumps I now realize are in gas tanks or away from the engine compartment . Probably the vapor reclamation (EGR?) circuit in modern vehicles has something to do with the location also.  Soooo.... the engine starts up immediately since the pump turns on when ignition key turned to on before engaging the starter, pure gas, no diaphragms to fail (near and dear to a soon to retire gyn, 27 days to go), and smooth driving at all speeds and all temperatures without any hiccups.  You purists can do your thing, but here is a solution that works well but is not concours correct.  Rob Kern
 
Sent: Tuesday, July 04, 2017 1:46 PM
Subject: Re: [Chrysler300] ethanol-eaten fuel pumps
 
 

Maybe I'm just lucky.  I've been dealing with fuel system adversities for more than 50 years and I don't find things to be a great deal worse now than in the past.  I've not checked the alcohol content in local fuels in a long time now, but I suspect that here in Florida we still have less of it than in many parts of the country.  Between 1995 and about 2004 I never saw local content to be greater than about 6percent  (measured with a rather crude test device, careful monitoring required because of 2-stroke sensitivity).  My sense of smell is not very acute, but it seems that now we have less ethanol than at some times in the past because I hardly smell it at all now most of the time.   A few months ago I disassembled the fuel pump on my C300 just to make certain that it was still in good shape before driving to Wisconsin.  What I found was no noticeable deterioration of the diaphragms and it remained clean and corrosion free internally.  The pump was a new Airtec from Carquest in 2008.  I drive the car a little bit almost every day, refuel it about once a month, and have now accumulated just over 21,000 miles since I started driving it.  There's little for me to complain about.
 
---------------Marshall Goodknight


---------- Original Message ----------
From: "2HsandaHeritage@xxxxxxxxxxx [Chrysler300]" <Chrysler300-noreply@xxxxxxxxxxxxxxx>
To: leslie miklas <ldmiklas@xxxxxxxxxxx>
Cc: Chrysler300 <chrysler300@xxxxxxxxxxxxxxx>
Subject: Re: [Chrysler300] ethanol-eaten fuel pumps
Date: Tue, 4 Jul 2017 17:54:20 +0000 (UTC)

 

 
I also have had 2 fuel pumps rebuilt by Arthur Gould in New York - no problems.
Doug Warrener

From: "leslie miklas ldmiklas@xxxxxxxxxxx [Chrysler300]" <Chrysler300-noreply@xxxxxxxxxxxxxxx>
To: "Chrysler300" <chrysler300@xxxxxxxxxxxxxxx>
Sent: Monday, July 3, 2017 10:13:28 AM
Subject: [Chrysler300] ethanol-eaten fuel pumps
 
 

 

Three different 300s and 3 ethanol-eaten fuel pumps. They worked long enough to push the diaphragm chunks up

and clog the lines.

Has anybody had any luck finding ethanol resistant fuel pumps or can recommend a rebuilder using ethanol resistant internals ?????

Thanks

 

Jeff Miklas

 

 

 

 



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