Noisy fuel pump

[steemin]

I did a search....

I have the Holley Blue electric fuel pump..
I realize that these pumps do make some noise and mine is no exception.
At speed it is really not an issue.. But prior to starting the car or at idle it is annoying
People look at me sometimes like there is something wrong with my car..
I would rather just listen to the lopey cam at idle
Just wondering ....Are there any options available that do not make that constant WAAAAAAAA!
Scott

 

[brianj5600]

Mine is on a toggle, so I start the car before turning it on. A bypass regulator may help also, since it will only make the pump hold 7psi.

 

[fasttback]

My Mallory 140 is noisy too. And for the same reasons I would like to know what to do or buy. Looks like the Holley Blue is not an option.

 

[steemin]

I also get some vibration noises.
I probably could do a better job of isolating the pump from the body with some sort of rubber bushings...
I had Dynamat installed on the floorboards,doors and roof during the build.
That doesn't help the vibration and noise from the pump
Scott

 

[GoinBroke]

The electric pumps are trying to pump full flow against the regulator and it should make the pump whine against the line pressure and little flow. It should calm the noise down a little if a regulator was used including a bypass return to tank line. It would be worth a try

 

[jerry S]

I also get some vibration noises.
I probably could do a better job of isolating the pump from the body with some sort of rubber bushings...
I had Dynamat installed on the floorboards,doors and roof during the build.
That doesn't help the vibration and noise from the pump
Scott

I have the same problem. It sounds like somebody is making margaritas in the trunk with a mini-blender. My proposed solution is the same as yours, i.e., rubber bushings.

 

[iskwezm]

i had the Holley blue as my first pump, it wasnt that bad, i mounted it through a piece of 5/8 heater hose. I now have a bigger Product Engineering pump, and its still not that bad.

if people dont know the sound,they must not be into cars.

 

[brin0357]

Its part of the game. My holley blue is the same way, but then again its not a street car. How about the holley Red's I got one with my 66' that I am going to street drive and I was wondering if its noisy as well.

 

[Spoofty]

I have mine mounted with rubber bushing. It made a small difference, but it's still there.

 

[Applejack]

I wonder if it would be possible to wire in a sort of timer so that the pump only runs for 5 seconds when you first key-on but don't start the car. This would make sure you have line pressure if the car has been sitting for quite some time. If you just key on but don't start then it would shut off. If the car actually starts then the pump will run continuously.

I put a new fuel pump in my wife's Cavalier last night and when I tested it I noticed that they work this way.

It might be difficult using our simple ignition switches without ECU's because the same on/run position would either shut the pump off after a certain amount of time or keep it running.

Maybe some electrically savy guys on here could come up with a simple circuit to wire in?

 

[iskwezm]

I wonder if it would be possible to wire in a sort of timer so that the pump only runs for 5 seconds when you first key-on but don't start the car. This would make sure you have line pressure if the car has been sitting for quite some time. If you just key on but don't start then it would shut off. If the car actually starts then the pump will run continuously.

I put a new fuel pump in my wife's Cavalier last night and when I tested it I noticed that they work this way.

It might be difficult using our simple ignition switches without ECU's because the same on/run position would either shut the pump off after a certain amount of time or keep it running.

Maybe some electrically savy guys on here could come up with a simple circuit to wire in?

you really dont need line pressure with a carb. The bowls should have enough fuel to run for a "short" amount of time. I dont get the whole problem with having a pump make noise before you start the car. If its that bad, just change it to a mechanical pump

 

[68_stanger]

This is something that I've been trying to rid my car of too, the annoying sound of the fuel pump, mainly at idle.
I am a outboard tech at a marina, and the later model engines that volvopenta has been using has a electric pump that you can barly tell is running. If its good enough to feed a boats thirsty carb, it should be enough for my cars. I've had half a notion to buy one and try it, Allthough I haven't had much time, and have some other problems to sort out first, just my thoughts.

 

[66bluepony]

Go for a in tank pump. pump will also run cooler.

 

[BlueMonster65]

clogged, dirty, or cavitating

i used a holley blue for a long time and it never made noise until one fateful day when it failed due to some crud in the gas line on the suction side of the pump. since that style of pump has very little suction it is critical to have a good gravity feed to the pump and a good filter before the pump. i have since switched to a mallory comp110fi which is designed for high pressure and high volume and it is a little louder but barely noticable.

on the holley pumps if the internal bypass valve gets stuck the pump will cavitate and cause it to be very loud. this can be fixed by rebuilding the pump, it is very cheap and very easy to do. often this is required after the car has been sitting for a long time. if it is not fixed the pump will prematurely fail.