Volvo Penta 5.7 fuel problems

[bruceb58]

Re: Volvo Penta 5.7 fuel problems

2002 is before MTBE was being replaced by ethanol as an oxygenator. This is way old info.

My information comes from my chemical engineer friend at Chevron.

 

[cobalt252]

Re: Volvo Penta 5.7 fuel problems

Point is: it doesn't change where the ethanol blending occurs or how it is controlled. There's a good chance that E10 or E15 gasoline has excess ethanol in it and that this is the source of many of our fuel related problems ...

 

[bruceb58]

Re: Volvo Penta 5.7 fuel problems

Point is: it doesn't change where the ethanol blending occurs or how it is controlled. There's a good chance that E10 or E15 gasoline has excess ethanol in it and that this is the source of many of our fuel related problems ...

You can blame ethanol all you want but the source of most problems is water/debris in the fuel or mechanical with carb/injection systems or fuel tanks. Excess water in the tank will become a bigger headache because of ethanol but the culprit is the water. Like I said before, if you have a lot of water in your tank, no amount of Sta-bil is going to solve that problem other than getting the water out of the tank physically. Adding the magic elixer to the fuel tank is the "easy" fix that people want to take but its not the answer.

 

[cobalt252]

Re: Volvo Penta 5.7 fuel problems

Exactly - cause (origin) of water/debris? Ethanol in fuel ...

 

[bruceb58]

Re: Volvo Penta 5.7 fuel problems

Exactly - cause (origin) of water/debris? Ethanol in fuel ...

Ethanol does not cause water in your fuel if that is what you are thinking.

 

[Devildog01]

Re: Volvo Penta 5.7 fuel problems

Help finding a pump!
2000 Striper, 5.7 Gsi perf. I replaced one pump (#3588865) but the other pump has stopped now as well. Replacing the entire fuel cell for $700.00 is just stupid when all I need is pump # 282 3019A. This is the pump which requires seperating the fuel cell for removal. I can not find just this pump. Any help?

 

[Don S]

Re: Volvo Penta 5.7 fuel problems

Devildog. Welcome to iboats.
You need to start a new thread with your quesion, and not hijack someone elses.
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[sharps45]

Re: Volvo Penta 5.7 fuel problems

Thanks guys for all the ethanol information- the stuff sucks all around!

A mechanic friend (who was out of town on vacation when I started this thread) came over and we went through the system. He said fuel pump going out, and replace kinked hose. Went to Iboats store and ordered parts. Replace fuel hose first (it came first) and didn't see much change. Replaced fuel pump and instant starts, 3 days on lake with no problems, think it's solved!

Now the ignition key is screwed up- won't rebound automatically from start position to the on position. Guess I'll replace that next.

Thanks again for all the advice.

 

[MattBuss]

Don S: Another thing you can try when it stops, is to pull the fuel pump relay, jump the 30 and 87 terminals with a jumper wire and see if the pump will run (engine off) and listen to see if it fill the carb.

I am having similar issue, and have removed the lines and filter. If I power the pump, it will run for a few seconds, then slow to stop. I would think that without any fuel / pressure, the pump would run continuously until it burned up. What are your thoughts?

Just trying to confirm its dead or dying before I drop $350.

 

[bruceb58]

Don S: Another thing you can try when it stops, is to pull the fuel pump relay, jump the 30 and 87 terminals with a jumper wire and see if the pump will run (engine off) and listen to see if it fill the carb.

I am having similar issue, and have removed the lines and filter. If I power the pump, it will run for a few seconds, then slow to stop. I would think that without any fuel / pressure, the pump would run continuously until it burned up. What are your thoughts?

Just trying to confirm its dead or dying before I drop $350.

Matt, DonS passed away 4 years ago. You should start a new thread with your issue.