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corvair mechanical fuel pump

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airvair601(at)Yahoo.com
Guest

Posted: Tue Apr 17, 2007 9:42 am Post subject: corvair mechanical fuel pump

Ok guys I’ve read some more of the history on this.  Both on the corvair  and  the zenith lists and I have come to the understanding that the reason for not utilizing the corvair mechanical fuel pump is because of  pump failure and failure mode.  My understanding is that when it fails it can dump fuel into the case causing problems.  I have had a pump failure on my old 225 car engine.  In that case the diaphragm started to leak.  The mechanical part of the pump was fine.  I am assuming the corvair  fails the same way. Now, for the question.  Is it possible to rebuild the mechanical pump with a more modern material and avoid the failure?  By the way, I am assuming that when a mechanical pump fails that a back up electrical pump can still push fuel through it.  Thanks phill.



           Ahhh...imagining that irresistible "new car" smell?

 Check out [url=http://us.rd.yahoo.com/evt=48245/*http://autos.yahoo.com/new_cars.html;_ylc=X3oDMTE1YW1jcXJ2BF9TAzk3MTA3MDc2BHNlYwNtYWlsdGFncwRzbGsDbmV3LWNhcnM-]new cars at Yahoo! Autos.[/url]  [quote][b]

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haven

Joined: 11 Apr 2007
Posts: 19
Location: Kansas City MO

Posted: Tue Apr 17, 2007 10:40 am Post subject: Re: corvair mechanical fuel pump

I would think that a failed fuel pump could pump fuel into the crankcase and also into the engine compartment( huge risk of fire).  Also if you put an elec pump in line before the mech. pump, you would just push fuel out of the hole that caused it to leak in the first place.

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Gig Giacona

Joined: 10 Jan 2006
Posts: 1416
Location: El Dorado Arkansas USA

Posted: Tue Apr 17, 2007 11:31 am Post subject: Re: corvair mechanical fuel pump

There is also the issue that there isn't a magneto system on the Corvair so if your power system fails the engine is going to stop working anyway.

[quote="airvair601(at)Yahoo.com"]Ok guys Iï¿½ve read some more of the history on this.  Both on the corvair  and  the zenith lists and I have come to the understanding that the reason for not utilizing the corvair mechanical fuel pump is because of  pump failure and failure mode.  My understanding is that when it fails it can dump fuel into the case causing problems.  I have had a pump failure on my old 225 car engine.  In that case the diaphragm started to leak.  The mechanical part of the pump was fine.  I am assuming the corvair  fails the same way. Now, for the question.  Is it possible to rebuild the mechanical pump with a more modern material and avoid the failure?  By the way, I am assuming that when a mechanical pump fails that a back up electrical pump can still push fuel through it.  Thanks phill.



           Ahhh...imagining that irresistible "new car" smell?

 Check out [url=http://us.rd.yahoo.com/evt=48245/*http://autos.yahoo.com/new_cars.html;_ylc=X3oDMTE1YW1jcXJ2BF9TAzk3MTA3MDc2BHNlYwNtYWlsdGFncwRzbGsDbmV3LWNhcnM-]new cars at Yahoo! Autos.[/url]   	  Quote: 	
		  [b]

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_________________
W.R. "Gig" Giacona
601XL Under Construction
See my progress at www.peoamerica.net/N601WR

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