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12-10-2012, 01:01 PM
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#1
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Le Cat
Country: France
Location: Paris
Occupation: Computer Sales
Boat name: Le Cat
Boat make: Argo Cat 18
Engines: Mercury 2.4EFI
Cruising area: Paris
Join Date: Mar 2004
Location: Paris
Posts: 753
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Merc 2.4efi issues
Last time out lacked power never got on plane. Then couldn't idle in neutral without using the gas pedal. Never happened before. Any ideas ?
Cheers
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12-10-2012, 01:32 PM
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#2
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Registered User
Country: uk
Location: salcombe
Occupation: semi retired
Interests: racing(middle east class 3 6l)
Boat name: still no worries
Boat make: phantom18
Engines: 2.5 efi
Cruising area: salcombe
Join Date: Dec 2007
Location: salcombe
Posts: 499
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fuel pressure ?????
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12-10-2012, 02:50 PM
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#3
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Registered User
Country: Ireland
Location: Dublin
Occupation: Boatbuilder
Boat make: Hydrostream V-king, 650SS OCR ,Ring 21, Ring 18, Phantom 18.
Engines: 300Hp Mercury 2.4, 130 Yamaha, Bridgeport EFI, XR6, Merc 200.
Cruising area: Malahide, Dublin
Join Date: May 2004
Location: Dublin
Posts: 1,803
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Thats what I was thinking, check you have 39psi fuel pressure test with the engine running and not running.
Make sure the little hose to the MAP sensor is clear, oil pools up in the bottom of it. And the nipples on the intake to the map sensor and reg get blocked up with crap too.
What electrics are on the motor? Analogue or digital? Is there a throttle position sensor on top of the intake?
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04-11-2012, 05:56 PM
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#4
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Le Cat
Country: France
Location: Paris
Occupation: Computer Sales
Boat name: Le Cat
Boat make: Argo Cat 18
Engines: Mercury 2.4EFI
Cruising area: Paris
Join Date: Mar 2004
Location: Paris
Posts: 753
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Two weeks ago started fine on the trailer. Yesterday wouldn't start.
Where is the Map/intake sensor ? saw a couple of spots where the oil pools.
Thanks
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04-11-2012, 06:22 PM
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#5
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Registered User
Country: Ireland
Location: Dublin
Occupation: Boatbuilder
Boat make: Hydrostream V-king, 650SS OCR ,Ring 21, Ring 18, Phantom 18.
Engines: 300Hp Mercury 2.4, 130 Yamaha, Bridgeport EFI, XR6, Merc 200.
Cruising area: Malahide, Dublin
Join Date: May 2004
Location: Dublin
Posts: 1,803
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Dont worry about the 3rd pic, that looks like the oil feed line, supposed to be oil in that one!
Post a pic of the ECU and the front of the horn.
Have you got fuel pressure at all and with the engine running?
Disconnect the boat loom and see if you have spark and all the injectors are pulsing.
Also do a compression test.
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11-11-2012, 10:45 PM
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#6
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Le Cat
Country: France
Location: Paris
Occupation: Computer Sales
Boat name: Le Cat
Boat make: Argo Cat 18
Engines: Mercury 2.4EFI
Cruising area: Paris
Join Date: Mar 2004
Location: Paris
Posts: 753
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pics of ecu & horn.
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12-11-2012, 12:19 AM
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#7
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Registered User
Country: Ireland
Location: Dublin
Occupation: Boatbuilder
Boat make: Hydrostream V-king, 650SS OCR ,Ring 21, Ring 18, Phantom 18.
Engines: 300Hp Mercury 2.4, 130 Yamaha, Bridgeport EFI, XR6, Merc 200.
Cruising area: Malahide, Dublin
Join Date: May 2004
Location: Dublin
Posts: 1,803
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Have you got 6 sparks and fuel on 6 injectors?
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