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ROCKET
ROCKET, Marine Mechanic
Category: Boat
Satisfied Customers: 999
Experience:  I HAVE BEEN WORKING ON BOATS OVER 25 YEARS
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How many and where are the drain plugs located on a Mercruiser

Resolved Question:

How many and where are the drain plugs located on a Mercruiser 5.7 EFI engine?
Submitted: 8 years ago.
Category: Boat
Expert:  ROCKET replied 8 years ago.

Welcome to JA

 

what year 5.7

do you have a serial number handy?

this way i can post pics

Customer: replied 8 years ago.
1997
Expert:  ROCKET replied 8 years ago.

here you go

 

CLICK HERE

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Customer: replied 8 years ago.
so.. that would be 3 per engine?
Expert:  ROCKET replied 8 years ago.

you might have up to 7

 

both manifolds

both block drains

knock sensor

fuel cooler

water pump (maybe)

Customer: replied 8 years ago.

7 for both engines? I am only asking because the prior owner added a MST Guardian BT-2000 flush system and I wanted to make sure the hoses to the block replaced a drain plug, Thanks

 

Expert:  ROCKET replied 8 years ago.

well i would print out the manual i posted

you will have to do some look over the motor

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