99 merc 25 hp leaking fuel

les7771

Recruit
Joined
Sep 1, 2006
Messages
5
I have a 1999 25 hp merc that is leaking fuel under the cowl . I think it is hitting the flywheel and splattering all over . I have ran the motor in my driveway and cannot find the leak . the motor runs fine . any help on where this leak may be would be appreciated .

I have found the leak it is between the crankcase and the cylinder block . could the two halves be loose or do I have a bigger problem ? the motor runs fine it just makes a mess.
 

HSEMJ

Seaman Apprentice
Joined
Jun 3, 2005
Messages
33
Re: 99 merc 25 hp leaking fuel

If it is a fuel leak it should be easy to find. Just remove the hood and hook up your fuel tank and squeese the primer bulb on the hose till it's firm. This will pressurize the fuel system and make the leak obvious.
 

les7771

Recruit
Joined
Sep 1, 2006
Messages
5
Re: 99 merc 25 hp leaking fuel

HSEMJ said:
If it is a fuel leak it should be easy to find. Just remove the hood and hook up your fuel tank and squeese the primer bulb on the hose till it's firm. This will pressurize the fuel system and make the leak obvious.
I have found the leak to be between the crankcase and cylinder block. could the two halves be loose or do I have a much larger problem ? the motor runs fine it just makes a mess
 
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