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Need some troubleshooting advice., Yamaha F250 Gas Leak |
 Jul 14 2010, 09:32 PM
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#1
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Swabie  Group: Members Posts: 19 Joined: 27-December 09 From: Les Cheneaux Islands, MI Member No.: 349 Boat Type:Robalo R227  |
I am getting a slight fuel leak while docked on my 2006 Yamaha F250. Could not find any leaks in gas lines - nor could marina techs. The fuel appears to be emanting from the back of the lower unit cowling below the engine compartment. Any suggestions on how to troubleshoot it or has anyone had a similar issue?
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Jul 15 2010, 02:42 PM
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#2
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Chief Petty Officer Group: Captains Posts: 423 Joined: 23-June 09 From: Edinboro, PA Member No.: 10 Boat Type:92 1820cc 07 Etec 150HO |
Look over the the whole fuel system under the cowl for signs of leakage. If no luck, try looking while the engine is at idle, just be careful. That should reveal the source of the leak, which is running into the midsection.
 Bob
'92 Robalo 1820cc/'07 Evinrude Etec 150HO |
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Jul 16 2010, 05:09 AM
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#3
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Admin Group: Administrators Posts: 1,523 Joined: 28-May 09 From: Suffolk, VA Member No.: 3 Boat Type:R2160 |
Any fluids that have leaked out from the enging block would eventually get out where you are seeing it now. I am curious, though, is it just gas or does it look like there is any oil in the mix leaking out?
Dan
1988 2160 / 2003 Evinrude 225 Founding member of the Bad Shorts Club |
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Jul 16 2010, 06:17 PM
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#4
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 Admin Group: Administrators Posts: 1,254 Joined: 1-June 09 From: Casselberry Member No.: 4 Boat Type: ROBALO MARINE 19' |
Like Dan said. I could be happening when you tilt it all the way up and gas leaves the fuel system. Once tilted down it makes it way back to the lowest point inside the pan (my 4 stroke Honda does it)
Another trick to do is to look at it in the dark with a flashlight as you will see any liquid throws a glare. I can hear the CSI jokes coming but it does work as I hunted for hours on a well pump system we use to have and went out one night looking for something else in my shed and went over to look at the pump and sure enough I saw a shinny spot and sure enough it was a small crack in a pipe 4 inches from a connection on the bottom. I have done it a few more times and it works, (IMG:style_emoticons/default/cool.gif) |
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Jul 18 2010, 09:58 AM
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#5
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Swabie Group: Members Posts: 19 Joined: 27-December 09 From: Les Cheneaux Islands, MI Member No.: 349 Boat Type:Robalo R227 |
QUOTE (2-N-TOW @ Jul 16 2010, 06:09 AM)  Any fluids that have leaked out from the enging block would eventually get out where you are seeing it now. I am curious, though, is it just gas or does it look like there is any oil in the mix leaking out? Wondered the same thing - for now I have convinced myself that it is just gas - not oil - thanks for the reply! |
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Jul 18 2010, 09:59 AM
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#6
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Swabie Group: Members Posts: 19 Joined: 27-December 09 From: Les Cheneaux Islands, MI Member No.: 349 Boat Type:Robalo R227 |
QUOTE (mrrobalo @ Jul 16 2010, 07:17 PM) Like Dan said. I could be happening when you tilt it all the way up and gas leaves the fuel system. Once tilted down it makes it way back to the lowest point inside the pan (my 4 stroke Honda does it) Another trick to do is to look at it in the dark with a flashlight as you will see any liquid throws a glare. I can hear the CSI jokes coming but it does work as I hunted for hours on a well pump system we use to have and went out one night looking for something else in my shed and went over to look at the pump and sure enough I saw a shinny spot and sure enough it was a small crack in a pipe 4 inches from a connection on the bottom. I have done it a few more times and it works, (IMG:style_emoticons/default/cool.gif) Great tip - will give this a shot and let you know the results - will be two weeks before I get back to the boat in Michigan |
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Jul 18 2010, 10:02 AM
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#7
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Swabie Group: Members Posts: 19 Joined: 27-December 09 From: Les Cheneaux Islands, MI Member No.: 349 Boat Type:Robalo R227 |
QUOTE (billiebob @ Jul 15 2010, 03:42 PM) Look over the the whole fuel system under the cowl for signs of leakage. If no luck, try looking while the engine is at idle, just be careful. That should reveal the source of the leak, which is running into the midsection. Will look it over more carefully - not just at the fittings - and at night with the flashlight tip per the tips from you guys - thanks to all. |
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Aug 31 2010, 09:37 PM
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#8
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Swabie Group: Members Posts: 19 Joined: 27-December 09 From: Les Cheneaux Islands, MI Member No.: 349 Boat Type:Robalo R227 |
QUOTE (kilonen @ Jul 18 2010, 10:58 AM) Wondered the same thing - for now I have convinced myself that it is just gas - not oil - thanks for the reply! 2-N-Tow: Great question. Turned out to be some oil that had spilled - apparently from filling crankcase - was not fuel. Problem solved - thanks for making me check it more carefully. |
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Aug 31 2010, 09:39 PM
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#9
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Swabie Group: Members Posts: 19 Joined: 27-December 09 From: Les Cheneaux Islands, MI Member No.: 349 Boat Type:Robalo R227 |
All: thanks for the help - problem solved. Was crankcase oil apparently spilled inside cowling from filling this spring.
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Sep 1 2010, 05:52 AM
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#10
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Admin Group: Administrators Posts: 1,523 Joined: 28-May 09 From: Suffolk, VA Member No.: 3 Boat Type:R2160 |
Glad to hear it was something that would not cost you any money!
Dan
1988 2160 / 2003 Evinrude 225 Founding member of the Bad Shorts Club |
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Sep 1 2010, 10:38 PM
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#11
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 Chief Petty Officer Group: Captains Posts: 301 Joined: 21-June 09 From: Josephine, AL Member No.: 8 Boat Type:ROBALO, R240 2x 150 Yams |
Yeah, this will probably the ONLY thing that doesn't cost!! "Boats are holes in the water that you keep throwing money into in hopes of filling it up!!"
2008 R240 Twin 150 Yams
Roger |
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Sep 2 2010, 05:36 PM
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#12
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Swabie Group: Members Posts: 19 Joined: 27-December 09 From: Les Cheneaux Islands, MI Member No.: 349 Boat Type:Robalo R227 |
QUOTE (marlinchaser @ Sep 1 2010, 11:38 PM) Yeah, this will probably the ONLY thing that doesn't cost!! "Boats are holes in the water that you keep throwing money into in hopes of filling it up!!" Too true - what does that say about all of us given that it doesn't stop any of us from still boating? Maybe my wife has a suggestion or three on that... |
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Sep 2 2010, 07:05 PM
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#13
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 Administrator Group: Root Admin Posts: 1,396 Joined: 27-May 09 From: Central Florida Member No.: 1 Boat Type:2007 R240 |
QUOTE (kilonen @ Sep 2 2010, 06:36 PM) Too true - what does that say about all of us given that it doesn't stop any of us from still boating? Maybe my wife has a suggestion or three on that... hmmmm......my wife is an enabler. (IMG:style_emoticons/default/laugh.gif) Don't Forget To Get Your ROBALOBOATING.COM Shirts Today!!!
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Sep 2 2010, 07:14 PM
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#14
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Master Chief Group: Captains Posts: 572 Joined: 25-June 09 From: Friday Harbor, Washington Member No.: 36 Boat Type:1993 1820 |
Even on the trailer, I leak a little $$ towards her.
The boat too. I may not be a doctor,
but I'll have a look. |
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Sep 2 2010, 10:35 PM
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#15
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Admin Group: Administrators Posts: 1,254 Joined: 1-June 09 From: Casselberry Member No.: 4 Boat Type: ROBALO MARINE 19' |
Well I can say I am lucky to have a understanding wife
When it comes to our boats . Having to take care of 3 All our lives together (almost 38) she has become use to me calling and saying I'm not going to make it home untill tomarow and ending up being 4 . She to helps me working on them as long as it isn't fiberglassing . She also loves fishing as much as me but not offshore . I guess I caught a keeper |
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Lo-Fi Version | Time is now: 5th September 2010 - 06:16 PM |
