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Forfun1960
Joined: 25 Oct 2010 Posts: 47 City/Region: Carmi
State or Province: IL
C-Dory Year: 2006
C-Dory Model: 23 Venture
Vessel Name: Journey former Noro Lim
Photos: Journey
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Posted: Thu Jun 04, 2020 9:48 am Post subject: Rattle in Fuel Tank |
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I have a 23' Cape Cruiser with 2-30 gallon Aluminum fuel tanks. The port tank has an intermediate rattle inside the tank. Seems like it is mostly at idle. Rattle takes place no matter which tank I am using. Wonder if anyone has seen or heard of this issue before? Not sure where to do anything about it or not boat runs find. _________________ Donnie Wilson |
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tsturm
Joined: 01 Nov 2003 Posts: 1135 City/Region: Soldotna
State or Province: AK
C-Dory Year: 2003
C-Dory Model: 25 Cruiser
Vessel Name: JMR TOO
Photos: JMR-TOO
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Posted: Thu Jun 04, 2020 11:54 am Post subject: Re: Rattle in Fuel Tank |
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Forfun1960 wrote: | I have a 23' Cape Cruiser with 2-30 gallon Aluminum fuel tanks. The port tank has an intermediate rattle inside the tank. Seems like it is mostly at idle. Rattle takes place no matter which tank I am using. Wonder if anyone has seen or heard of this issue before? Not sure where to do anything about it or not boat runs find. |
If it bothered me I would drain it pull it out & see what it is & if I can't get it out?
Or maybe a weld on a baffle is broken & needs to be repaired?
Cap from a additive can? Or is there something laying on top (or out of sight) vibrating at idle?
Good luck & let us know. |
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CC Rider
Joined: 19 Nov 2013 Posts: 157 City/Region: Tsawwassen
State or Province: BC
C-Dory Year: 2006
C-Dory Model: 23 Venture
Vessel Name: CC Rider
Photos: CC Rider
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Posted: Thu Jun 04, 2020 3:19 pm Post subject: |
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I too have a 2006 Cape Cruiser and both of my tanks have made this noise since I have owned her. I had a problem with my engine once, and thought it may have been a plugged fuel line pickup and so I removed the pickup and had a look to find nothing in the tank. And by the way, there is no filter on the end of the pickup tube...
The noise is strange, it only happens at engine idle, and only when I first start either the main or the kicker. (Both engines are connected to the tank(s).) I have come to the conclusion that it is either the fuel gauge floats that cause this, or more likely a little air in the pickup line is making the noise.
Chris _________________ MMSI#: 316033635 |
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ssobol
Joined: 27 Oct 2012 Posts: 3386 City/Region: SW Michigan
State or Province: MI
C-Dory Year: 2008
C-Dory Model: 22 Cruiser
Vessel Name: SoBELLE
Photos: SoBelle
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Posted: Thu Jun 04, 2020 5:14 pm Post subject: |
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Couldn't also just be resonance somewhere? There are things on my boat that resonate depending on engine RPM. |
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CC Rider
Joined: 19 Nov 2013 Posts: 157 City/Region: Tsawwassen
State or Province: BC
C-Dory Year: 2006
C-Dory Model: 23 Venture
Vessel Name: CC Rider
Photos: CC Rider
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Posted: Thu Jun 04, 2020 6:53 pm Post subject: |
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Forgot to mention that there is a check valve with a small ball bearing located at the elbow at the top of the tanks. Now that I think about it, this is the most likely culprit as the ball probably rattles back and forth with low fuel flow (at idle), but not when the flow is greater (anything above idle).
Chris |
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Forfun1960
Joined: 25 Oct 2010 Posts: 47 City/Region: Carmi
State or Province: IL
C-Dory Year: 2006
C-Dory Model: 23 Venture
Vessel Name: Journey former Noro Lim
Photos: Journey
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Posted: Thu Jun 04, 2020 8:40 pm Post subject: |
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Thanks Chris, Glad to hear others have a similar situation without issue. This winter I might pull the tank to satisfy my curiosity. |
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