2006 185 sport engine runoff

balls1

Recruit
Joined
Jul 31, 2007
Messages
2
have a problem with run off on my 2006 185 sport dealer said it's a problem with all of them what can i do its a 4.3L
 

oops!

Supreme Mariner
Joined
Oct 18, 2007
Messages
12,932
Re: 2006 185 sport engine runoff

hey balls....welcome to i boats....

up in the main forum is mercruiser engine troubles.

the people here are fantastic......only wish i was in there area....id go to them........post your engine size and all the info you can think of.....youll have 50 answers in a matter of minits from some of the best mechanics in the states
 

nlain

Commander
Joined
Nov 17, 2005
Messages
2,445
Re: 2006 185 sport engine runoff

There are several things that cause run on after the switch is turned off. You have too much heat in the engine compartment, bad gas, idle speed too high, shutting down too quick after a long run. I would try turning the blower on for a few minutes, let the engine idle at the dock a couple minutes, this will do two things, remove heat from the engine compartment with the blower, idle time will let the hot spots in the engine cool down. If this does not work drop the idle speed 25 rpm maybe as much as 50 rpm, I would try 25 first.
 

rktktpaul

Recruit
Joined
May 7, 2008
Messages
5
Re: 2006 185 sport engine runoff

I have the same problem; I was told its very common. There is supposed to be a "run-on" fix, but the primary cause is heat build-up in the engine compartment, especially when running off plane. My dealer recommended that I run the blower continuously when off plane, and use a mid-grade gasoline instead of regular. It helped somewhat, but the engine still gets the hiccups from time to time.
 
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