75hp mercury 4 stroke 2003

[summerbreeze]

Appologies this is a 75 hp 4 stroke engine not 70 hp.Can anyone help with my cooling system warning siren ?

engine has been serviced,leg removed,new water pump kit and impellor fitted,
warning still comes on,have been told it could be the olive on an internal cooling pipe firred up.
please help me out.

chas

 

[JUSTINTIME]

Re: 75hp mercury 4 stroke 2003

time to pull sensors until horn stops
might be oil

 

[hanses]

Re: 75hp mercury 4 stroke 2003

Wow i posted a reply to this months ago and it never went through????My siren goes off when ime trolling at idle-not a big deal just warm water on the hand squirting out--if it was boiling i would worry=--just a over sensitive siren.

 

[caper55]

Re: 75hp mercury 4 stroke 2003

I have the exact motor with approx 100 hrs of fresh water use on it. A connecting rod let go and went through the block. Interested in a spare motor?