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#121
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On Fri, 29 Oct 2004 23:35:47 -0400, "Thomas Moats" > wrote:
> > wrote in message .. . >> On Fri, 29 Oct 2004 22:54:06 -0400, "Al Smith" > >> wrote: >> >> >Wait a minute. Maybe there are shortcuts in some cases - and I have only >> >done >> >it once - but every fuel pump replacement I have heard about >> >involves dropping the tank. >> > >> >> None of the intank fuel pumps used on carbureted Toyota vehicles >> required removal of the tank to replace. All had screwed on access >> covers either in the trunk or floor under the rear seat to access the >> fuel sender.fuel pickup/fuel pump.. Many other vehicles were built the >> same. >> >> Many of today's vehicles DO require dropping the tank - and MANY of >> those tanks are plastic, not steel.. Many of them have quick >> disconnects to disconnect the fuel lines, and if less than 1/4 full >> pose a very limitted danger of spillage when removing. They are also >> usually relatively simple to drain with a proper fuel transfer pump, >> either electrical, air powered, or manual. >> >> Most fuel injected vehicles can be easily drained from under the hood >> by connecting the transfer pump to the service valve on the fuel rail >> - without getting ANY fuel or fuel vapours into the shop, and with NO >> danger of fire. > >If you have about a week to wait for the fuel to tranfer........ No,, about half an hour maximum will empty a 72 liter tank - and totally unmonitored, so you can do another job while it is being drained. The schrader valve is removed to remove a significant amount of restriction from the line. > > ><snip> > |
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#122
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On Fri, 29 Oct 2004 23:35:47 -0400, "Thomas Moats" > wrote:
> > wrote in message .. . >> On Fri, 29 Oct 2004 22:54:06 -0400, "Al Smith" > >> wrote: >> >> >Wait a minute. Maybe there are shortcuts in some cases - and I have only >> >done >> >it once - but every fuel pump replacement I have heard about >> >involves dropping the tank. >> > >> >> None of the intank fuel pumps used on carbureted Toyota vehicles >> required removal of the tank to replace. All had screwed on access >> covers either in the trunk or floor under the rear seat to access the >> fuel sender.fuel pickup/fuel pump.. Many other vehicles were built the >> same. >> >> Many of today's vehicles DO require dropping the tank - and MANY of >> those tanks are plastic, not steel.. Many of them have quick >> disconnects to disconnect the fuel lines, and if less than 1/4 full >> pose a very limitted danger of spillage when removing. They are also >> usually relatively simple to drain with a proper fuel transfer pump, >> either electrical, air powered, or manual. >> >> Most fuel injected vehicles can be easily drained from under the hood >> by connecting the transfer pump to the service valve on the fuel rail >> - without getting ANY fuel or fuel vapours into the shop, and with NO >> danger of fire. > >If you have about a week to wait for the fuel to tranfer........ No,, about half an hour maximum will empty a 72 liter tank - and totally unmonitored, so you can do another job while it is being drained. The schrader valve is removed to remove a significant amount of restriction from the line. > > ><snip> > |
#123
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Bill Putney wrote:
> Ken Weitzel wrote: > >> >> Bill Putney wrote: >> >>> Ken Weitzel wrote: > > >>>> I do have one question though that I'd like to ask if >>>> I may? When I have a quarter tank of fuel left, what >>>> exactly occupies the remaining space? > > >>> If I see where you're going with this, the inside of the fuel pump >>> (where all the electrical commutation/sparking takes place) is 100% >>> full of liquid fuel under all conditions. Missing only one >>> ingredient for fire or explosion: air/oxygen. Comforting thought, eh? >>> >>> To answer your question: air (but all the arcing and sparking is >>> inside the pump with only liquid fuel). > wouldn't the arcing be only where the actual motor assembly would be? could this not be a sealed unit? Would you even want gas in there? I would think gas does a poor job of lubrication - you'd have some kind of grease in the actual motor assembly, wouldn't you? the gears that pump the gasoline won't be arcing... fwiw, my fish tank pump uses a sealed pump assy with a magnetic drive assembly - no chance of water touching the electrical parts. Ray |
#124
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Bill Putney wrote:
> Ken Weitzel wrote: > >> >> Bill Putney wrote: >> >>> Ken Weitzel wrote: > > >>>> I do have one question though that I'd like to ask if >>>> I may? When I have a quarter tank of fuel left, what >>>> exactly occupies the remaining space? > > >>> If I see where you're going with this, the inside of the fuel pump >>> (where all the electrical commutation/sparking takes place) is 100% >>> full of liquid fuel under all conditions. Missing only one >>> ingredient for fire or explosion: air/oxygen. Comforting thought, eh? >>> >>> To answer your question: air (but all the arcing and sparking is >>> inside the pump with only liquid fuel). > wouldn't the arcing be only where the actual motor assembly would be? could this not be a sealed unit? Would you even want gas in there? I would think gas does a poor job of lubrication - you'd have some kind of grease in the actual motor assembly, wouldn't you? the gears that pump the gasoline won't be arcing... fwiw, my fish tank pump uses a sealed pump assy with a magnetic drive assembly - no chance of water touching the electrical parts. Ray |
#125
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#126
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#127
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<snip>
> >If you have about a week to wait for the fuel to tranfer........ > > No,, about half an hour maximum will empty a 72 liter tank - and > totally unmonitored, so you can do another job while it is being > drained. The schrader valve is removed to remove a significant amount > of restriction from the line. > > > > > ><snip> > > > That is bull. |
#128
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<snip>
> >If you have about a week to wait for the fuel to tranfer........ > > No,, about half an hour maximum will empty a 72 liter tank - and > totally unmonitored, so you can do another job while it is being > drained. The schrader valve is removed to remove a significant amount > of restriction from the line. > > > > > ><snip> > > > That is bull. |
#129
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On Sat, 30 Oct 2004 03:15:52 GMT, Ken Weitzel >
wrote: ><snip> >Hi Bill... > >I'd have to be several kinds of fool to debate you >given your experience. > >Perhaps though, we should together design a new >system? I'm thinking of gravity... > >Ken VW beetle had the gravity feed. Not sure that I'd want a gravity feed if I was involved in an accident....... ;-) |
#130
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On Sat, 30 Oct 2004 03:15:52 GMT, Ken Weitzel >
wrote: ><snip> >Hi Bill... > >I'd have to be several kinds of fool to debate you >given your experience. > >Perhaps though, we should together design a new >system? I'm thinking of gravity... > >Ken VW beetle had the gravity feed. Not sure that I'd want a gravity feed if I was involved in an accident....... ;-) |
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