Wont stay started.

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LEOMAC10

Recruit
Joined
Jun 7, 2011
Messages
3
I have a 2000 mercruiser 3.0 that I just put in last weekend! It started right away I took it for a spin and it ran rough after about 5-10 min. The engine started shaking and then it died. Had to get towed in. any ideas?? my thoughts are fuel problem. maybe changing fuel filter?? i'm not sure.
 
90stingray

90stingray

Lieutenant Junior Grade
Joined
Oct 26, 2010
Messages
1,162
Re: Wont stay started.

Welcome to iboats! I would change water sep filter... check old one for water. You could run on aux fuel tank to troubleshoot as well. But I think you are on the right track thinking its fuel related. Goodluck!
 
81 Checkmate

81 Checkmate

Lieutenant
Joined
Jul 20, 2010
Messages
1,360
Re: Wont stay started.

Check your intake / exhaust manifold mounting bolts and see if they are loose. The ones that you use to mount it to the head.
 
Eric 3.7LX Alpha 1

Eric 3.7LX Alpha 1

Captain
Joined
Mar 27, 2010
Messages
3,028
Re: Wont stay started.

Click on this link: Adults Only at the top of this forum, loads of info to help troubleshoot your rig. You can start with #3 on that link.
http://forums.iboats.com/showthread.php?t=288430

(the symptom is WAY too vague to be seriously thinking we can fix it over a keyboard). Your going to have to do some detective work and we can help you along the way.

good luck
 
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dingdongs

Chief Petty Officer
Joined
May 29, 2009
Messages
649
Re: Wont stay started.

remove fuel filter and up end into a bucket and check for water globules.may be a filter just as it goes into carb too.may be best to take that off too and remove lower fuel bowl and tell us what you find.all these can be done within the hour and will cost you nothing to check.if water is evident change filter as a precaution and if its as far as your carb the filter could be blocked there too.once the carbs off do the looking in a clean area and not in dusty conditions etc.let us know what you find.
 
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