Carter fuel pump problems


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754
Posts: 69
Joined: Fri Sep 08, 2017 9:08 am
Location: Clermont Ga
Motorcycle: 1992 GL1500 Interstate

1978 CB750 Supersport

Carter fuel pump problems

Post by 754 » Thu Sep 27, 2018 9:07 am



To everyone who has chosen to use the carter fuel pump as a replacement to the non-existant factory ones, have you had problems with realiabilty? Last December I finally figured out that the factory pump had given up, so after reading up on replacement parts I chose to go with the carter fuel pump. And since then I have gone through 3 of them, the third one having just died on me. The first pump lasted from December till about April or June, I put in the second one and it lasted all of a day or so (I installed it ran it once in the garage and it failed). I put the third one in when the second failed and it lasted till yesterday. I am getting really tired of replacing fuel pumps, I even took out the capacitor for the CB just to see if that was causing my problem but I guess it's not. I"ll try to get to checking the amps coming through the wires to make sure it's spec, but I'm at a loss as to why I can't keep a fuel pump in it. If anyone else has some ideas, I'm all ears.

Thanks guys,

Travis


1992 Goldwing Gl1500 Interstate

1978 CB750 Supersport

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dingdong
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Re: Carter fuel pump problems

Post by dingdong » Thu Sep 27, 2018 9:32 am

Can't answer your question about the Carter pump however OEM pumps are still available, at lease shown as available from Western Honda. Pricey but can still be purchased. Part # 16700-MAF-000
Tom

John F. Kennedy would be impeached by todays liberal Democratic socialist party.

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virgilmobile
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Re: Carter fuel pump problems

Post by virgilmobile » Thu Sep 27, 2018 11:35 am

I have no experience with them also..... But I am interested to find out how they failed.
Did the motor stop drawing power as in electrically failed?
Did the motor seize and burn up?
If you can determine what actually happened to the pump we may be able to determine why...
The pump is designed to flow fuel through the motor to cool and lube it.
It also has close fitting parts..SO any debris getting into the pump could lock the impellers..stopping the motor and damaging the internal wiring/brushes...
Is there a new filter attached to the pump that sealed off the pump inlet?
Can a failed pump be disassembled for close inspection...??

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bluthundr31
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Location: Morgan Hill, CA.
Motorcycle: 1991 GL1500 Interstate (Cinnamon Beige)

Re: Carter fuel pump problems

Post by bluthundr31 » Thu Sep 27, 2018 1:58 pm

A few of us GL1500 riders have replaced the OEM pump with the Carter pump with great success. Three bad ones??? Something is wrong with your install.
Was it the Carter P72190? That one worked for me.
As Virgil said, , ,Give us more info about the pump problems so we might help pin-point where the hiccup is, , , ,

The "output" from the pump up to the top of the mounting bracket makes a VERY sharp turn, , and it has caused the hose to collapse and cause problems, , so make SURE the hose doesn't "kink" while making that turn. I used about 11.5" of Gates 27093 hose, rated as gasoline submersible, to make that turn and it fit nicely & tight against the inside of the bracket. MAKE SURE THE HOSE IS RATED AS GASOLINE SUBMERSIBLE or you're asking for trouble. An option to that sharp turn is putting a brass elbow to mitigate bending the hose, , that was the solution for some of the folks who made the change.

If you decide to try something different, , ,take a quick look at these options, alleged direct OEM replacement (but I have no experience with them);

https://www.amazon.com/dp/B00T5MKC98/?tag=goldwingdocs-20 ... _lig_dp_it

https://www.amazon.com/dp/B071RCVKF5/?tag=goldwingdocs-20 ... _lig_dp_it

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AZgl1800
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Re: Carter fuel pump problems

Post by AZgl1800 » Thu Sep 27, 2018 4:42 pm

I had trouble with 2 of them, and it was the install that did them in.

in each case, the line out kinked in the bend.
I fixed that with a brass 90 degree nipple.
after that mod, no more trouble.

also, the screen is susceptible to damage, gotta watch that close.
~John

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754
Posts: 69
Joined: Fri Sep 08, 2017 9:08 am
Location: Clermont Ga
Motorcycle: 1992 GL1500 Interstate

1978 CB750 Supersport

Re: Carter fuel pump problems

Post by 754 » Sat Sep 29, 2018 12:24 pm

Hey guys sorry for the slow response. 2 of the 3 pumps have failed in the same way. The first pump failed the way most do slowly on the way home from work one day. I fueled up on the way home that day and as I was riding the engine just steadily lost power and speed until it died. The 2nd and 3rd pumps failed quickly in a different manner. They both ran one day and not the next. When pulled from the tank and jump with 12 volts the pumps did not run, however if struck with a hammer or anything hard they would run again. It might be only one or two times and then it would stop working, hit it again and it would work. Install is straight forward, I have one piece of very stiff hose between the pump and the outlet. No evidence of collapse that I see. The screen is nice and clean as is the tank. And the pump I'm using is the 72190 carter.

Thanks everyone.

Travis
1992 Goldwing Gl1500 Interstate

1978 CB750 Supersport

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bluthundr31
Posts: 217
Joined: Tue Jul 11, 2017 11:43 pm
Location: Morgan Hill, CA.
Motorcycle: 1991 GL1500 Interstate (Cinnamon Beige)

Re: Carter fuel pump problems

Post by bluthundr31 » Sat Sep 29, 2018 12:49 pm

I don't see a flaw in your install, , ,just hard to believe you got "bad" new pumps. I'm at a loss for suggestions, , , other than to say, , ,put a 90 degree brass elbow inline so that stiff hose has no bend, it can't hurt to try. Sounds like you did everything right, and it must be frustrating to have three pumps crap out. One of the pumps in the links I gave earlier is listed as a GL1500 fuel pump replacement that meets or exceeds OEM specs. You could give it a try, , , Good luck



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