VL fuel pump noisy

Post by **wildmouse** » Tue Nov 04, 2008 10:45 pm

Just finished 1.6 TBI conversion, very towey.replaced the pump cause it was noisy,but the new one isnt much better.
runs from tank to LP filter then to LP pump then HP pump then HP filter then check valve then TBI unit.
some of the rubber hose does some fairly tight turns, but not pinched.
Even thought of putting pump in a sound insulated box, but thought it might get hot.
ANY IDEAS
thanks

Post by **Spike_Sierra** » Tue Nov 04, 2008 11:01 pm

remove the the LP filter.

My mate runs a filter before his Vl pump and its noisy as.
edit: mine is pretty quiet, however since i have upped the pressure in the fuel line with a pressure regulator it is a little louder.

Post by **lay80n** » Wed Nov 05, 2008 6:49 am

My VL pump is noisey too, but runs fine. You can try to insulate the pump to avoid noise transfer into the body if its annoying in the cab. Funnily enough, PYRO's VL pump was very quiet when i did his EFI swap.

Layto....

Post by **greenzook89** » Thu Nov 06, 2008 1:26 am

Mine was noisy too. I thought the buzz was cool

Post by **want33s** » Thu Nov 06, 2008 9:05 am

Try a pump out of a 240 Volvo. They come with rubber insulators and accumulator and are common (cheap) as.

Jas.

Post by **Pyrotech** » Thu Nov 06, 2008 9:39 am

lay80n wrote:My VL pump is noisey too, but runs fine. You can try to insulate the pump to avoid noise transfer into the body if its annoying in the cab. Funnily enough, PYRO's VL pump was very quiet when i did his EFI swap.

Layto....

mine is that quiet, we thought i wasnt working when we first did the install

Post by **smileysmoke** » Thu Nov 06, 2008 10:03 am

hows yours setup pyro? did you install it with any rubber insulation type washer to minimise noise? is there a filter in front of it.. etc?
cheers

Post by **FC3892** » Thu Nov 06, 2008 10:21 am

i have a lp on befor my hp efi pump.. dont hear a sound

Post by **Pyrotech** » Thu Nov 06, 2008 11:52 am

smileysmoke wrote:hows yours setup pyro? did you install it with any rubber insulation type washer to minimise noise? is there a filter in front of it.. etc?
cheers

no filter b4 the pump, but i am going to be putting one in very soon.

the pump uses 1/2 of the original mount form the VL, the pump is the wrapped in insertion rubber, with a home made clamp on it, il try to grab some pix for you

Post by **BenT** » Thu Nov 06, 2008 2:42 pm

wildmouse wrote:runs from tank to LP filter then to LP pump then HP pump then HP filter then check valve then TBI unit.

My VL pump is quiet. You can just notice it when it gets really low on fuel and has to suck harder to get the fuel up out of the tank.

I only run the HP pump, no LP, so maybe your LP pump isn't pumping enough volume for the HP pump, causing it to cavitate?

You could try bypassing the LP pump to see if that helps.

Mounting could also have a lot to do with it. Mine is mounted to the chassis using the factory foam rubber insulator and a clamp. If it was hard mounted to your body it would amplify any noise.

Ben

Post by **wildmouse** » Thu Nov 06, 2008 10:38 pm

yes I will try bypassing the LP pump, pity I didnt know about the volvo pump, could have saved myself $ 220.
thanks

Post by **Pyrotech** » Fri Nov 07, 2008 9:35 am

wildmouse wrote:yes I will try bypassing the LP pump, pity I didnt know about the volvo pump, could have saved myself $ 220.
thanks

WHA

mine cost me $70 with the mount and pressure reg

Post by **lay80n** » Fri Nov 07, 2008 10:57 am

Pyrotech wrote:
wildmouse wrote:yes I will try bypassing the LP pump, pity I didnt know about the volvo pump, could have saved myself $ 220.
thanks
WHA mine cost me $70 with the mount and pressure reg

$55 for mine, could have got a brand new one in the box for $110 straight from AC Delco.

Layto....

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