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General Category => Maintenance => Topic started by: dougrs on April 23, 2014, 07:08:57 AM

Title: airtex fuel pump failure
Post by: dougrs on April 23, 2014, 07:08:57 AM
Hey,

Last year I replaced my stock fuel pump (it still worked) with the recommended airtex model when I was working on my carbs. As I was getting my bike ready this spring I discovered that the airtex pump had failed, which is pretty disappointing since it didn't even make a year. I am pretty sure it failed last fall as I was having running issues at highway speeds, but not around town, I now suspect this is from the bike operating without a functioning fuel pump. Anyway, I re-installed my stock pump and re-did all the fuel line routing...I'll be looking for a different replacement pump as a backup now.
Title: Re: airtex fuel pump failure
Post by: andyb on April 23, 2014, 07:56:41 AM
OEM R6 pump from the early (carb'd) years will work, but the outlets are mildly different.  IIRC that also holds true for 1st gen R1 pumps.

Title: Re: airtex fuel pump failure
Post by: dougrs on April 23, 2014, 08:17:03 AM
Quote from: andyb on April 23, 2014, 07:56:41 AM
OEM R6 pump from the early (carb'd) years will work, but the outlets are mildly different.  IIRC that also holds true for 1st gen R1 pumps.



Thanks. I have found good info on potential replacments searching the forum. Just need to find something in good shape for a decent price.
Title: Re: airtex fuel pump failure
Post by: johnnyalpha on April 23, 2014, 08:58:20 AM
Will the bike run if the pump fails out on the road and you simply joined up the two ends of the fuel line with a connector ?
I carry one of these wee plastic hose connectors on the bike, for just this scenario, am I wasting my time ?
Johnny Edinburgh
Title: Re: airtex fuel pump failure
Post by: racerrad8 on April 23, 2014, 09:01:58 AM
Yep, the bypass line is required item to carry on fuel pump FJ's.

Randy -RPM
Title: Re: airtex fuel pump failure
Post by: movenon on April 23, 2014, 09:04:37 AM
Sorry about your fuel pump problem.  Just for information I would avoid an Airtex pumps in general for the FJ.  I don't think they have the appropriate check valves in them.  I had a conversation with one of there tech reps a while back and was told that none of there solenoid pumps have a check valve to prevent fuel from flowing with the power off. Please let us know what you replace your pump with.  
George,

Here is a copy of one of there e mails.

               "Good morning. The E8016S & all of our solenoid style pumps do not contain a check valve & will allow fuel to flow thru the pump. We do however offer an in line check valve, CV8000, that could be used for this purpose.

If there is anything else I can help you with please feel free to call or email me.

Thanks Shane"


On the bypass, to get a short distance yes you can but if you have to go very far tap in before the fuel filter. The filter is restrictive and we don't have much head pressure.  I carry a 3 foot section of coiled hose with 2 barb fittings.  I might add a small shut off valve to the mix.


Title: Re: airtex fuel pump failure
Post by: Arnie on April 23, 2014, 10:20:20 AM
Here's a 12V pump that should work.  I have NOT tried it, and cannot vouch for its quality, but I have bought many other items from this seller and been satisfied with the purchases.  Its cheap enough to get one as an emergency spare to carry after you test to make sure it works.

http://www.banggood.com/12V-Electric-Fuel-Pump-Diesel-Petrol-12-Volt-p-919121.html (http://www.banggood.com/12V-Electric-Fuel-Pump-Diesel-Petrol-12-Volt-p-919121.html)
Title: Re: airtex fuel pump failure
Post by: ribbert on April 23, 2014, 10:29:24 AM
Quote from: Arnie on April 23, 2014, 10:20:20 AM
Here's a 12V pump that should work.  I have NOT tried it, and cannot vouch for its quality, but I have bought many other items from this seller and been satisfied with the purchases.  Its cheap enough to get one as an emergency spare to carry after you test to make sure it works.

http://www.banggood.com/12V-Electric-Fuel-Pump-Diesel-Petrol-12-Volt-p-919121.html (http://www.banggood.com/12V-Electric-Fuel-Pump-Diesel-Petrol-12-Volt-p-919121.html)

Yep, I do the same, carry a cheap pump.

On trips I also take a spare coil and ignition box. I figure these are the only two items you can't jury rig on the side of the road.
Noel
Title: Re: airtex fuel pump failure
Post by: dougrs on April 23, 2014, 01:15:56 PM
Quote from: movenon on April 23, 2014, 09:04:37 AM
Sorry about your fuel pump problem.  Just for information I would avoid an Airtex pumps in general for the FJ.  I don't think they have the appropriate check valves in them.  I had a conversation with one of there tech reps a while back and was told that none of there solenoid pumps have a check valve to prevent fuel from flowing with the power off. Please let us know what you replace your pump with.  
George,

Here is a copy of one of there e mails.

               "Good morning. The E8016S & all of our solenoid style pumps do not contain a check valve & will allow fuel to flow thru the pump. We do however offer an in line check valve, CV8000, that could be used for this purpose.

If there is anything else I can help you with please feel free to call or email me.

Thanks Shane"


On the bypass, to get a short distance yes you can but if you have to go very far tap in before the fuel filter. The filter is restrictive and we don't have much head pressure.  I carry a 3 foot section of coiled hose with 2 barb fittings.  I might add a small shut off valve to the mix.




It would seem that the airtex does not have a check valve as my bike would run with a failed pump. Thanks for the info.
Title: Re: airtex fuel pump failure
Post by: movenon on April 23, 2014, 01:58:29 PM
Without a check valve the only thing stopping your tank from going empty on the ground was your needle and seats.. When shopping for a pump asking about a check valve be aware there are 2 types of check valves. One that prevents fuel flow if the fuel tank is above the pump and the other checks the fuel from draining back into the fuel tank (as in a car).

One pump that meets that spec. is a Facet 40171.  http://www.aircraftspruce.com/catalog/eppages/facetpumps.php (http://www.aircraftspruce.com/catalog/eppages/facetpumps.php)

That is what I am running.  I can't tell you the reliability yet. So far so good, other motorcycles have been using them.  I figure for the cost I can have an extra one around.  NAPA also get that pump but of coarse the price jumps up.

The mounting is different so be aware of that also.

Hope this helps.
George
Title: Re: airtex fuel pump failure
Post by: Yamifj1200 on April 23, 2014, 03:05:58 PM
I had two of the Airtex pumps fail on me. I don't recommend them at all. I went back to a new stock pump for my 91 and have picked up a spare on Ebay to keep with me on the road. From what I can figure out its the points (switch) that wears out on the stock pump. Randy used to sell them IIRC. After replacing two of the Airtex pumps I'd never run another one. It's just not worth the effort for me.

Eric M
Title: Re: airtex fuel pump failure
Post by: Mike Ramos on April 23, 2014, 03:57:32 PM
Howdy,

On the '91 I did replace the points and it ran well for many additional miles but the internals eventually failed.  I then installed the fuel pump from RPM and when I acquired the '92 I switched over the same fuel pump from one bike to the other.  Between the two FJ's there must be over 100,000 miles on the pump with no issues whatsoever.

Bolts in using the same mounting bracket and I think the same wiring as well.

Addressing safety concerns: most importantly, the fuel pressure is correct for the carburetors as are the internal valves to ensure positive fuel shut off.

Ride safe,

Midget.



Title: Re: airtex fuel pump failure
Post by: Pat Conlon on April 23, 2014, 04:47:34 PM
Reliability?
The Facet pumps being recommended by the aircraft industry speaks volumes to me.
Title: Re: airtex fuel pump failure
Post by: racerrad8 on April 23, 2014, 05:17:37 PM
George, I cannot count the amount of Airtex fuel pumps I have sold for both the race car and FJ applications and to my knowledge, I have only had one returned "defective" when I say that it means it was full of rust.

The other fact is the pump might not have check valve as you know it, but the plunger is spring loaded and when there is no power applied to the coil then it seals stopping fuel flow.

Eric sorry to hear of your troubles as well, did you get either of your pumps from me?

I do use, recommend and sell the Airtex pump based on my success as well as bunch of others success' with the pump. I will also stand behind any Airtex pump I sell.

Randy - RPM
Title: Re: airtex fuel pump failure
Post by: Yamifj1200 on April 23, 2014, 06:36:05 PM
"Eric sorry to hear of your troubles as well, did you get either of your pumps from me?"

Randy, I bought the two Airtex pumps I used from a local Advance auto. They were the same model you sell and included the new filter. I installed them in the original location and powered them off of the factory wiring. I don't think either one of them lasted more than a year. When I removed each of them I tried to see what went wrong. I connected each to a 12 volt bike battery and not either one of them would pump at all.
  The original stock fuel pump lasted 70,000 miles and the airtex pumps went south in less than 10,000 miles. That's why I went back to the stock pump, I think the last new one I picked up on Ebay  for around 90.00 dollars delivered and the spare was 75.00 or so. Now I ride with a spare on board just in case.. HTH

Eric M
Title: Re: airtex fuel pump failure
Post by: ribbert on April 23, 2014, 07:50:27 PM
Points in fuel pumps do very little work (compared to ignition points). I have recently had two original FJ pumps apart at over 100,000 k's and while the points needed a slight clean up there was only minimal pitting. At the rate they wear they should outlast the non serviceable components of the pump many times over.

You can now buy most of these or facet style pumps as solid state units. These are now widely used because of their reliability. I have a $25 facet knock-off pump I carry as a spare. I did use it for about 10,000's on another bike.

It has occurred to me that it would be just as easy to mount it somewhere near where it would used as it is to carry it around in the tail. Carrying a length of hose is a good idea but probably takes up more room than a spare pump. Whatever, as long as you make some provision for getting home, or more importantly, continuing a trip in the event of a failure. The hose, as I have read here, is a bit of a  limp home fix and as I do a lot of trips I like the idea of a spare pump that cost less than a tank of fuel. Cheap insurance.

We are only talking about an event that is likely to happen once in the life of the bike, but of course it will never be at a convenient time or place.

Noel
Title: Re: airtex fuel pump failure
Post by: dougrs on April 28, 2014, 07:35:37 PM
UPDATE:

Amazon warrantied my airtex pump and is sending a replacement. I also found a pump from a 2006 YZF600R for cheap and picked that up too. The pump will plug right into the existing wiring plug and uses the same mounting bracket. The pump hose barbs are a little bigger but are located in the same location as the stock FJ pump. Not a bad solution once you work around the slightly larger hose barbs on the pump.

-Doug
Title: Re: airtex fuel pump failure
Post by: fintip on April 29, 2014, 11:54:59 AM
Fjowners.wikidot.com/fuel-pump

Talks about Eric airtex failures and...

QuoteCliff notes: YZF600R (97-02) fuel pump is identical, 99-02 R6 unit will work, maybe $100 new, maybe $40 used.
Title: Re: airtex fuel pump failure
Post by: JOMPPA10 on May 23, 2014, 01:07:23 PM
Quote from: Pat Conlon on April 23, 2014, 04:47:34 PM
Reliability?
The Facet pumps being recommended by the aircraft industry speaks volumes to me.

+1 FROM me works fine even has little bit more pressure 0,4 bar