5.7L Water Pump Leak

[PeteHarris]

Mornin All ... I've got a seawater cooled 1994 Mercruiser 5.7L (Ser OF124711) that is leaking ever so slightly from the engine mounted water circulating pump (not the outdrive impeller). <br /><br />It looks to be coming from behind the pulley and leaks about 1 cup per hour. This is a new problem for this spring! <br /><br />My question ... is this a worn bearing/bushing issue (replace the pump) or am I missing something? <br /><br />Thanks for the help!

 

[tommays]

Re: 5.7L Water Pump Leak

its time for a new pump it was nice of it to let you no now and not a nice day in the summer<br /><br />tommays

 

[Don S]

Re: 5.7L Water Pump Leak

Be sure you get a marine pump since you have a raw water cooled system. Automotive pumps don't fair very well in those circumstances.

 

[DHPMARINE]

Re: 5.7L Water Pump Leak

Don't ignore the leak.If the bearing in the pump goes,things can get interesting.<br />Auto pumps .... NO WAY..<br /><br />DHP

 

[achris]

Re: 5.7L Water Pump Leak

Pete,<br /><br />New pump (-17437), about $125, from www.mercruiserparts.com (I'd pay about $600 in Oz). If you can find a source of seals and have access to a press, you could repair it for about $20.<br /><br />Chris...........

 

[marinemech1]

Re: 5.7L Water Pump Leak

the pumps on those engines were defective replace with a new or rebuilt pump<br />by the way merc would not admit to defect but volvo/penta did