water out the exhaust 75hp mercury

airframer

Petty Officer 2nd Class
Joined
Nov 10, 2007
Messages
158
Re: water out the exhaust 75hp mercury

water in your cylinders? might have a crack in your jackets
 

MIKEY*2007

Petty Officer 2nd Class
Joined
May 16, 2008
Messages
117
Re: water out the exhaust 75hp mercury

my early merc has to have water out back exhaust to cool ,what year is it
 

carysmac

Recruit
Joined
Jul 10, 2008
Messages
1
Re: water out the exhaust 75hp mercury

I have a sailboat with a 40 outboard mercury motor. I just started the motor at my home for the season getting it ready to put into the lake. The motor starts fine with water being run from a garden hose with motor muffler ears on the lower unit, if that's is what you call it.

The water stream that is supposed to come out from the motor isn't working. What should I be looking for to get the stream working?
 

1976SRV190

Seaman
Joined
Jul 10, 2008
Messages
69
Re: water out the exhaust 75hp mercury

got water spraying out the exhaust but telltale is working to

spray of water out of the exhaust, if you mean out of the center of the prop is perfectly normal.....
 

1976SRV190

Seaman
Joined
Jul 10, 2008
Messages
69
Re: water out the exhaust 75hp mercury

I have a sailboat with a 40 outboard mercury motor. I just started the motor at my home for the season getting it ready to put into the lake. The motor starts fine with water being run from a garden hose with motor muffler ears on the lower unit, if that's is what you call it.

The water stream that is supposed to come out from the motor isn't working. What should I be looking for to get the stream working?

A new impeller or water pump kit, about 75 bucks and it isn't hard to do yourself.
 

Raider316

Seaman Apprentice
Joined
Aug 23, 2003
Messages
33
Re: water out the exhaust 75hp mercury

A new impeller or water pump kit, about 75 bucks and it isn't hard to do yourself.

Also you may want to check the telltale tube to make sure it ain't clogged up.
Happens to mine when it sits for a while
 
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