120 running at 215?

[ryanr623]

my mercruiser 120 stays stable at 215-225 sometime going to even 350 for a couple seconds before going back down to 215... even 215 seems hot to me.. do i have a bad gauge? or something in the line? or bad impeller?

 

[Tubingluvr]

Re: 120 running at 215?

my mercruiser 120 stays stable at 215-225 sometime going to even 350 for a couple seconds before going back down to 215... even 215 seems hot to me.. do i have a bad gauge? or something in the line? or bad impeller?

You definitely have something going on there, should run between 160 and 180.
I'd start by checking the thermostat (make sure it is opening) then if that checks out ok check the impeller.
When running on muffs is there water coming out the exhaust?

 

[ryanr623]

Re: 120 running at 215?

where is the thermostat in the 120?

 

[Bt Doctur]

Re: 120 running at 215?

under the therm housing, but do yourself a favor and go to the adults section and download the manual for your engine.

 

[ryanr623]

Re: 120 running at 215?

under the therm housing, but do yourself a favor and go to the adults section and download the manual for your engine.

Adults section?

 

[CheapboatKev]

Re: 120 running at 215?

I dont think the Mods will ever find a way to get people to read this..
Maybe make it mandatory as "Terms and Conditions"


http://forums.iboats.com/showthread.php?t=288430

 

[ryanr623]

Re: 120 running at 215?

Having trouble downloading, anyone have a cooling system diagram of the 84 mercruiser 120?

 

[renny1]

Re: 120 running at 215?

asyou look at your engine from the front at the top there is a squarish thing with a water pipe on either side welllllllll that is your T-stat housing