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What Is the Best Fuel Pump for Ethanol Gas?
My Beetle’s engine stalled today while I was on the highway.
First I thought it was caused by vapor lock. I waited for it to cool off. In an attempt to cool it off, I even squirted some yellow liquid on it when no vehicles were coming . Fuel was getting to the fuel pump but, it would not pump. Maybe the fuel pump push rod had worn down and there was not enough pressure to pump the gas. Maybe the ethanol gas had worn a hole in the fuel pumps’ diaphragm. Maybe I will start carrying a spare fuel pump, block, and push rod and replace it every three years and check the fuel pump pressure once a year. What could it be? What about the electric fuel pumps? Are they any more reliable? I suppose they would wear out just as fast with the ethanol gas. Any help is appreciated! |
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#2
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What Is the Best Fuel Pump for Ethanol Gas?
Push rod hadn,t jammed in block?. Definitely wasn,t ignition issues? Fuel
filter not blocked?. On my cars vapour lock didn,t occur when running but after I stop a while and the heat rises. Wont start then. Pump could be just .........ed. John |
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What Is the Best Fuel Pump for Ethanol Gas?
On 01/15/2011 08:09 PM, Jim Ed wrote:
> My Beetle’s engine stalled today while I was on the highway. > > First I thought it was caused by vapor lock. > > I waited for it to cool off. > > In an attempt to cool it off, I even squirted some yellow liquid on it > when no vehicles were coming . > > Fuel was getting to the fuel pump but, it would not pump. > > Maybe the fuel pump push rod had worn down and there was not enough > pressure to pump the gas. > > Maybe the ethanol gas had worn a hole in the fuel pumps’ diaphragm. > > Maybe I will start carrying a spare fuel pump, block, and push rod > and replace it every three years and check the fuel pump pressure once > a year. > > What could it be? > > What about the electric fuel pumps? Are they any more reliable? > I suppose they would wear out just as fast with the ethanol gas. > > Any help is appreciated! if you have a mech pump you have a vehicle that has got to be close to 30 years old MINIMUM - that's byond the design life of any fuel pump check your oil, if it smells like fuel, change it nate -- replace "roosters" with "cox" to reply. http://members.cox.net/njnagel |
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What Is the Best Fuel Pump for Ethanol Gas?
> if you have a mech pump you have a vehicle that has got to be close to > 30 years old MINIMUM - that's byond the design life of any fuel pump > > check your oil, if it smells like fuel, change it > > nate > > -- > replace "roosters" with "cox" to reply.http://members.cox.net/njnagel This is a 1973 Beetle. I installed the fuel pump in March 2008. I will check it today or tomorrow. I really think it is a worn push rod. How many bakelight gaskets go on top of the fuel pump? Correct me if I am wrong. Fuel pump pressure should be 3.5 to 5 p.s.i.? TIA! |
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What Is the Best Fuel Pump for Ethanol Gas?
On 01/16/2011 12:16 PM, Jim Ed wrote:
> >> if you have a mech pump you have a vehicle that has got to be close to >> 30 years old MINIMUM - that's byond the design life of any fuel pump >> >> check your oil, if it smells like fuel, change it >> >> nate >> >> -- >> replace "roosters" with "cox" to reply.http://members.cox.net/njnagel > > This is a 1973 Beetle. > I installed the fuel pump in March 2008. > > I will check it today or tomorrow. > I really think it is a worn push rod. > > How many bakelight gaskets go on top of the fuel pump? > Correct me if I am wrong. Fuel pump pressure should be 3.5 to 5 > p.s.i.? > TIA! I don't know the answer to your last question, but is the FP rebuildable? or is it a sealed unit? If the former you may be able to buy a new diaphragm made from modern alcohol-resistant materials. "the cellar" is one source. nate -- replace "roosters" with "cox" to reply. http://members.cox.net/njnagel |
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What Is the Best Fuel Pump for Ethanol Gas?
Jim Ed wrote:
> Correct me if I am wrong. Fuel pump pressure should be 3.5 to 5 > p.s.i.? 2.8 psi maximum delivery pressure for models from 1960 to 1968 according to my 1968 "Without Guesswork". Older engines had a lower maximum (1.8 or 2.5 psi). John |
#7
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What Is the Best Fuel Pump for Ethanol Gas?
I wrote:
> 2.8 psi maximum delivery pressure for models from 1960 to 1968 > according to my 1968 "Without Guesswork". Older engines had a > lower maximum (1.8 or 2.5 psi). I found a 1972 copy of "Without Guesswork" online, and it gives a maximum of 3-5 psi for that year's type 1 engines. So that's likely right for yours. http://oacdp.org/wog72/024_k.png John |
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What Is the Best Fuel Pump for Ethanol Gas?
On Jan 15, 7:09*pm, Jim Ed > wrote:
> My Beetle’s engine stalled today while I was on the highway. > > First I thought it was caused by vapor lock. > > *I waited for it to cool off. > > In an attempt to cool it off, I even squirted some yellow liquid on it > when no vehicles were coming . > > Fuel was getting to the fuel pump but, it would not pump. > > Maybe the fuel pump push rod had worn down and there was not enough > pressure to pump the gas. > > Maybe the ethanol gas had worn a hole in the fuel pumps’ diaphragm. > > Maybe I will start carrying a spare fuel pump, block, and push rod > and replace it every three years and check the fuel pump pressure once > a year. > > What could it be? > > What about the electric fuel pumps? Are they any more reliable? > I suppose they would wear out just as fast with the ethanol gas. > > Any help is appreciated! I looked up the specs for my 1973 Beetle with alternator. The pushrod maximum stroke should be 5 mm. The fuel pump pressure should be 3 to 5 p.s.i. I am going to try replacing the pushrod and setting the stroke to 5 mm. Then if that doesn't work, I am going to try an old fuel pump I have sitting on the shelf. Then later on I plan to inspect or replace the pushrod once a year and replace the fuel pump every 3 to 5 years. |
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What Is the Best Fuel Pump for Ethanol Gas?
Jim Ed wrote:
> Then later on I plan to inspect or replace the pushrod once a year and > replace the fuel pump every 3 to 5 years. If the pushrod doesn't last, it's poor quality. I'd expect 100,000 miles minimum from the original. Pump diaphrams might not last that long, and are not hard to replace. Some might not tolerate ethanol very well. John |
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What Is the Best Fuel Pump for Ethanol Gas?
On Jan 18, 3:19*am, John Henderson > wrote:
> Jim Ed wrote: > > Then later on I plan to inspect or replace the pushrod once a year and > > replace the fuel pump every 3 to 5 years. > > If the pushrod doesn't last, it's poor quality. *I'd expect > 100,000 miles minimum from the original. > > Pump diaphrams might not last that long, and are not hard to > replace. *Some might not tolerate ethanol very well. > > John Yep. I do not recall ever having a pushrod wear out on a Beetle. The engine will need rebuilding first. You can usually adjust the height it throws with gaskets/shims anyway. KWW 65 Beetle The IOC 64 Beetle The Blue Wave |
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