Mercruiser 5.7 Alpha One sea water pump

TBTech24

Seaman
Joined
May 3, 2011
Messages
56
I have to replace the sea water pump on a mercruiser mcm 5.7 v8 alpha one. What are the steps? I can just pop off the trim rams and drop just the lower half of the outdrive like and outboard lower unit right?
 

TBTech24

Seaman
Joined
May 3, 2011
Messages
56
Re: Mercruiser 5.7 Alpha One sea water pump

ok. thanks. that is the way i thought. pretty simple drain oil pull six bolts and she drops. then replace impeller reinstall unit fill the gear lube and check water flow. Thank you.
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,459
Re: Mercruiser 5.7 Alpha One sea water pump

pull six bolts and she drops.

Ayuh,... 5 Nuts, 'n 2 Bolts ain't it,..??
 

cr2k

Captain
Joined
Mar 19, 2009
Messages
3,730
Re: Mercruiser 5.7 Alpha One sea water pump

No need to pull the rams if you just drop the lower. Also NEED to put in forward gear at the control box.
 
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