| Author |
Message |
    
Serge
Member
Username: serge
Post Number: 9
Registered: 09-2008
| | Posted on Friday, November 13, 2009 - 11:40 pm: | 
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I have a 2008 5.0 Volvo Penta GL with merely 20 hours on it.
Some frustrating thing happened to me three times during last Summer. After each instance, I called licensed Volvo Penta mechanics, but they were unable to make any pointful conclusions after diagnosing the engine. So here is the story scenario that happened three times with NO changes at all.
I go take my boat and drive for some time with no problems at all. Then I stop the engine to chill out in the water. After I've done that, the engine starts again normally, but as I pull throttle to make my boat go on plane, my Volvo Penta stalls and won't start again.
I have been told that might have been a malfunction of a relay that's responsible for the fuel pump, but indeed it's not. I have been told that happend because I had no fuel filter installed. I had one installed, but that changed nothing. Finally, I think that is something wrong with my fuel pump, that for some reason simply does not turn on (after start, the boat runs for about 30 seconds, until I increase throttle which instantly increases fuel consumption, making all the fuel left in the engine burn). I had it replaced. After that I drove my boat for several times, without issues. Nonetheless, I must be 100% sure I don't end up in real trouble like I did last Summer when I got stuck in the middle of nowhere.
What do you think, gentlemen?
Thank you! |
David Branton
New member
Username: drb
Post Number: 1
Registered: 11-2009
| | Posted on Saturday, November 14, 2009 - 06:12 pm: |
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I have a similar problem with my Penta 5.7GS. Just got the boat - no problem the first time out then second time coming in the engine stalls but the gas gauge is also unstable. Each time it stalled (at idle) I was able to start it again and was able to get home. Could it be an electrical issue, fuel pump, or water in the gas? |
Serge
Member
Username: serge
Post Number: 10
Registered: 09-2008
| | Posted on Sunday, November 15, 2009 - 04:07 pm: |
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Actually, that seems to be not an issue with the fuel pump. Now that it's replaced, I still could not start the engine. However, I purchased a small plastic fuel tank that I carry in my boat. So what I did is I connected the engine to the new tank, and it did start.
Could this be an issue with the fuel tank then? The problem is I can't check it since I can't access it in my boat. I'll have to drill a hole in the hull to be able to get to the hose connection.
Any ideas? |
Casey P
Member
Username: olddawg
Post Number: 39
Registered: 07-2009
| | Posted on Sunday, November 15, 2009 - 05:41 pm: |
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Clogged fuel tank vent. |
Serge
Member
Username: serge
Post Number: 11
Registered: 09-2008
| | Posted on Sunday, November 15, 2009 - 11:39 pm: |
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I also think so, but I really hate to drill a hole in my boat to eventually see the problem is not in the fuel tank.
I have a new Glastron, driven it for two seasons only. Since the first seasons, when cruising, sometimes I would feel decrease in REVs for a second or two, but then they would get back to normal. I suppose that as well highlights the fact that the problem is in the fuel tank connection, doesn't it?
But why do I hear alarm sound each time my engine stalls? Isn't it like going out of fuel? Do Volvo engines signal in that case?
Thank you! |
CHARLES HUMPHRIES
New member
Username: hump
Post Number: 1
Registered: 11-2009
| | Posted on Tuesday, November 17, 2009 - 04:05 pm: |
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I have a volo penta 4.3gl 1999. I have been running the lake and stop for some swim time. When I go to start the boat back up it will not. After opening the hatch and let the heat out of escape the engine compartment it then starts. It may be vapor lock. See links from volvo penta about the E-10 fuel causing trouble for boat owners. I have gone through 2 fuel pumps in 1 year
http://www.seafarermarinesupply.com/user/image/volvo-sb-fuel-pump-for-storage.pd f
http://www.seafarermarinesupply.com/user/image/volvo-sb-fuel-pump-for-storage.pd f |
El Pescador
Senior Member
Username: el_pescador
Post Number: 5021
Registered: 02-2006
| | Posted on Wednesday, November 18, 2009 - 11:46 am: |
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Serge and David, in addition to Charles' suggestion, have you checked that the anti-syphon valve is clear? |
Serge
Member
Username: serge
Post Number: 12
Registered: 09-2008
| | Posted on Wednesday, November 18, 2009 - 06:53 pm: |
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El Pescador, where is the valve located? But I guess the Volvo Penta mechanics (that came three times) were likely to check it. |
El Pescador
Senior Member
Username: el_pescador
Post Number: 5022
Registered: 02-2006
| | Posted on Wednesday, November 18, 2009 - 09:31 pm: |
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By the fuel tank pickup line. |
Serge
Member
Username: serge
Post Number: 13
Registered: 09-2008
| | Posted on Wednesday, November 18, 2009 - 11:54 pm: |
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Oh, I can't reach it through the standard opening in my boat. I will probably get a hole drilled in the hull underneath the rear cushion to be able to access it. Before that, I need to be more or less sure the problem is there.
Shall I go for the boat "surgery" then? |
El Pescador
Senior Member
Username: el_pescador
Post Number: 5023
Registered: 02-2006
| | Posted on Thursday, November 19, 2009 - 10:19 am: |
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That's strange. I always thought that all fittings, joints and connections on a fuel tank must be accessible for inspection, maintenance and removal. Otherwise, how would you check that an anti-syphon valve is not stuck, and how would you replace it if needed?
Maybe you should consider checking this with the boat manufacturer. |
Serge
Member
Username: serge
Post Number: 14
Registered: 09-2008
| | Posted on Thursday, November 19, 2009 - 08:56 pm: |
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I consider that strange, too. The anti-syphon valve is about 5 inches away from where I would've reached it through the standard opening.
But anyway here's the last question that I need to have an answer to before I make the final decision: would the alarm sound in case of a clogged valve? Mine did sound each time. |
El Pescador
Senior Member
Username: el_pescador
Post Number: 5024
Registered: 02-2006
| | Posted on Thursday, November 19, 2009 - 11:43 pm: |
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If the alarm sounds, it won't be due to a clogged valve per se, but maybe it would due to the effects of the clogged valve (i.e. low fuel pressure?)? Sorry I don't have the manual for your particular engine.
If you suspected the fuel pump, here is something for you to check.
http://www.marineengine.com/discus/messages/12487/214803.shtml
http://www.marineengine.com/discus/messages/12487/192799.shtml
http://www.marineengine.com/discus/messages/12487/334350.shtml |
joe somers
Member
Username: pjsomers2
Post Number: 55
Registered: 04-2007
| | Posted on Friday, November 20, 2009 - 06:37 pm: |
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I had the same problem on my old boat my mechanic told me to loosen the gas tank cap and see if it worked it did, I had a clogged fuel tank vent. |
Serge
Member
Username: serge
Post Number: 15
Registered: 09-2008
| | Posted on Thursday, November 26, 2009 - 09:25 pm: |
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As appeared, my problem has nothing to do with Volvo Penta, but rather with my boat—Glastron.
I called two firms that deal with boat hulls and after listening to my story, both representatives replied that they had had numerous Glastron owners complaining about the same problem—when one keeps stalling for no reason and the captains are unable to reach the siphon valve due to incorrectly installed in-hull opening.
So be aware in case you're thinking of buying a new boat and thank you for your help! |
