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Author Topic:   new Mercury engine (25hp) leaking oil
wjriling posted 08-19-2002 09:19 PM ET (US)   Profile for wjriling   Send Email to wjriling  
I just brought home my new (to me anyway) '69 Whaler. I equipped it with a new 2003 Mercury 25 hp 2 stroke engine. I took it out for two hours last night to break the engine in and noticed this morning that their was a fair amount of oil (1/4 cup?) leaking out near the prop. Coyld anyone tell me if this is normal for a new engine? I thought it might be just extra lube, etc. but I'm not sure. Please excuse my outboard ignorance but this is my first motorboat.
Clark Roberts posted 08-20-2002 06:25 AM ET (US)     Profile for Clark Roberts  Send Email to Clark Roberts     
Wendy, if engine is on break-in diet of oil (25:1) this could be the cause... if so check after you get on a 50:1 ratio... should be ok! Happy Whalin'... Clark.. SCN
whalerron posted 08-20-2002 08:25 AM ET (US)     Profile for whalerron  Send Email to whalerron     
What color is the oil? Yellowish color could indicate a lower unit leak. Dark color would most likely be attributed to the heavy breakin mixture as Clark mentioned.

- ron

wjriling posted 08-20-2002 09:05 AM ET (US)     Profile for wjriling  Send Email to wjriling     
Clark and Ron,

It is a dark color oil so I suspect you are right, it's a break in type of thing. Thanks for easing my mind. Have a great day!


Bigshot posted 08-27-2002 01:35 PM ET (US)     Profile for Bigshot  Send Email to Bigshot     
Dark is usually just exhaust muck. You'll need to bring it in for the 20 hour checkup(you must) so they will change your lower unit oil then and advise of any problems etc. it is still under warranty so don't worry but if you fail to have the 20 hour done, you will most likely void the warranty.

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