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Fuel pump whine


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#1 harleybob

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Posted 04 November 2011 - 01:59 PM

Hi all This is a 2011 246 ssi. With a volvo penta 5.7 GI 300 hp fuel injected. The boat has only 11 hours. I am hearing a whine comming from the fuel pump. local mechanic says common problem. He says as long as the boat is running fine wich it is not to worry. All imput greatlly appreciated. Thankyou. bob.

#2 better_when_wet

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Posted 04 November 2011 - 02:11 PM

I think the key word there is "PROBLEM" with a 2011 boat and 11 hours there shouldn't be any PROBLEMS. Might just be me but you don't spend that kind of money to settle on anything. I would make them replace the fuel pump. :Twocents:

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#3 NativeAz

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Posted 04 November 2011 - 02:17 PM

This is a new boat under warrantee?

When you say local mechanic, are you referring to Chaparral dealer/service folks who are perfoming the warrantee service, or local mechanic (marine?) nearby?

Fuel pump "whine" is a loose term. Fuel pump will make normal noise (whine), but certain whines are not normal and mean problems.

You don't want to have it fail on the lake, and it appears you are trying to find out what it is and have it taken care of.

Hopefully the mechanic is certified and has experience.

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#4 Malcolm

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Posted 04 November 2011 - 03:15 PM

My fuel pump inlet was dirty, full of crud. My fault because I used the wrong filter on the tune up before. I held the pump upside down and sparyed carb cleaner into it until I could see the brass screen again,put it all back together again and no more whine. Not sure what to say on a new boat with only 11 hours. I think I would want a new pump and a new filter, then go from there. Fuel pump noise is fine...a whine, not so much!
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#5 Weekend At Bernie's

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Posted 04 November 2011 - 03:25 PM

The pump should be cool to the touch. If it's hot, you're on borrowed time.

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#6 Whalersailor

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Posted 04 November 2011 - 04:21 PM

I have a soft whine when mine is running, but yours sounds like it's pretty loud and mine is also 6 years old. You should not have to deal with it until it fails on you while your out with the family.
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#7 Richard W

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Posted 04 November 2011 - 08:04 PM

FWIW ... from a Volvo Penta bulletin posted recently somewhere on this forum:

Noisy Pumps

Electric pumps will often cavitate and become
noisy if they are starving for fuel.

Before replacing low-pressure pumps (carbureted
engines, fuel cells) check the fuel supply, condition
of the fuel hose, anti-siphon valve
operation, and fuel filter before replacing the fuel
pump.

A noisy high-pressure pump on a fuel cell may indicate
a low fuel level in the reservoir. Check the
fuel supply and low pressure pump operation to
be sure the reservoir is receiving the correct volume
of fuel.

This information may prevent needless pump replacement
and reduce the down time for the boat
owner.

Best ... Richard
 

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#8 1slowhoe

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Posted 05 November 2011 - 04:12 AM

If this is a new sound, meaning hours 1-10 you didn't have it, then call your local chap dealer and tell them you will be dropping it off for a replacement pump. I wouldn't phrase it in the form of a question. Make it a statement.
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#9 jeff

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Posted 05 November 2011 - 11:57 AM

I had to replace a Volvo fuel pump at less than 50 hours. I lost the low pressure side pf the pump, and I could tell it was on the way out; not just because the pump developed a rather loud whine, but the engine performance was affected (lost performance over 2500-3000 RPM).

I would have your dealer replace the pump under warranty.
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#10 Richard W

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Posted 05 November 2011 - 01:23 PM

+1 ... whatever the problem is, it's most likely a warranty issue ---> see the dealer.

Best ... Richard
 

Have boat called "anytime", 2007 Chaparral 270 Signature, with
VP 8.1Gi-H 375hp and 1.78 DPS-A with F4 duoprop, cruising

Saint Lawrence River and Lake Ontario in USA and Canada


#11 harleybob

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Posted 07 November 2011 - 01:36 PM

Thanks everyone for all the replys. I found a volvo penta dealer who is aware of this problem. he tells me after 2 updates with these fuel pumps they should be ok. He tells me the earlier fuel pumps after being replaced started the whining sound after about 10 hours. I will reply with updates after repair. Thanks again Bob.

#12 El Coqui

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Posted 07 November 2011 - 02:36 PM

Hi all This is a 2011 246 ssi. With a volvo penta 5.7 GI 300 hp fuel injected. The boat has only 11 hours. I am hearing a whine comming from the fuel pump. local mechanic says common problem. He says as long as the boat is running fine wich it is not to worry. All imput greatlly appreciated. Thankyou. bob.



Before you go off replacing anything verify your starting procedure.
1. Turn the key to the on position without starting the engine.
2. You will hear two beeps
3. Listen for the pump, it will whine for about 5 seconds while it primes itself. This will prevent the pump from starving for fuel while itís running.
4. Once it stops whining you can start the engine.

If you still have a problem then itís time to see the dealer.
El Coqui
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Not really I only wish I had them… just poking a little fun at all of you that list everything with an engine on your profile.



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