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10-11-2014, 03:29 PM
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#1
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Registered User
Country: UK
Location: Guildford
Occupation: Charity Audit Partner, haysmacintyre
Interests: Anything with wheels or an engine
Boat make: GTX530, Marshan 21
Engines: 125 Opti/150 Pro XS
Cruising area: Solent
Join Date: Sep 2011
Location: Guildford
Posts: 78
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Xr2 starts, but dies when in water?
I have an old XR2 150 motor which was struggling to start. It's had new plus, top seal, stator etc. all compression is spot on. now starts and ticks over fine. Will Rev on the slipway, but as soon as it goes into water and you get above 2000revs it dies. Any ideas what to check/replace next? It's baffled a mechanic for four months so any ideas gratefully received.
Thanks
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10-11-2014, 03:52 PM
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#2
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Registered User
Location: hayling island
Boat name: snow monkey
Boat make: extreme 24
Engines: mercruiser 6.2
Join Date: May 2004
Location: hayling island
Posts: 2,082
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mine did that aswell,changed loads of stuff,but a quick fix from memory was pushing in the choke button as you gave it some throttle
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10-11-2014, 05:35 PM
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#3
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Registered User
Country: UK
Location: Portsmouth
Occupation: Marine Engineer
Interests: everything fast
Boat make: Phantom 28/phantom 18
Engines: 2x Mercury 3.0 225 optimax/yamaha 85
Cruising area: Solent
Join Date: Nov 2005
Location: Portsmouth
Posts: 1,352
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That sounds like a stator gone down
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10-11-2014, 11:48 PM
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#4
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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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Defo sounds like stator...
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11-11-2014, 01:41 AM
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#5
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Registered User
Country: UK
Location: Surrey
Occupation: Motorsport Development inc Engine Managment
Boat make: 21ft
Engines: Various
Cruising area: Solent / Kent / Cornwall
Join Date: Oct 2011
Location: Surrey
Posts: 375
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Agree with the above.
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11-11-2014, 09:01 AM
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#6
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Registered User
Country: UK
Location: Guildford
Occupation: Charity Audit Partner, haysmacintyre
Interests: Anything with wheels or an engine
Boat make: GTX530, Marshan 21
Engines: 125 Opti/150 Pro XS
Cruising area: Solent
Join Date: Sep 2011
Location: Guildford
Posts: 78
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Thanks for the replies. It has got a brand new stator on it. Also had a diaphram kit. If it's revving it must be pulling fuel so got to be mechanical or electrical? Switches?
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11-11-2014, 09:45 AM
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#7
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Registered User
Country: isle of wight
Location: on a rock
Interests: boats,boats and boats
Boat make: Cougar 21
Engines: Merc 2.5 promax 150
Cruising area: solent
Join Date: Oct 2007
Location: on a rock
Posts: 712
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Quote:
Originally Posted by double scampi
Thanks for the replies. It has got a brand new stator on it. Also had a diaphram kit. If it's revving it must be pulling fuel so got to be mechanical or electrical? Switches?
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Have you got sparks on all 6 plugs
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11-11-2014, 11:10 AM
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#8
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Moose
Country: Jersey C I
Location: Jersey
Occupation: Thread stripper
Interests: Winding up Donkeys
Boat name: Venom
Boat make: 1990 Phantom(what else)21
Engines: Mariner 225 opti
Cruising area: Channel Islands/France
Join Date: Jul 2008
Location: Jersey
Posts: 111
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Assuming this engine worked fine on the boat before and you've not changed prop etc then high speed side of stator is the most likely cause. Just because you have a new stator doesn't mean its ok!
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11-11-2014, 05:54 PM
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#9
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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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Quote:
Originally Posted by Moose
Assuming this engine worked fine on the boat before and you've not changed prop etc then high speed side of stator is the most likely cause. Just because you have a new stator doesn't mean its ok!
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Good old merc.. eh???
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11-11-2014, 05:56 PM
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#10
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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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Strap the boat to the trailer, back it into the water. Put in gear and start it.
Put a timing light on and bring up revs until you have problem, see if spark goes out on that cylinder. Test other 5 same way...
Or just change the stator...
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