77 25 hp evinrude running hot

[tdr9499]

replaced impellor anf thermostat but keeps running hot. is there any way to inspect the plastic gromett under the power head without removing it thanks for any input

 

[R.Johnson]

Re: 77 25 hp evinrude running hot

It could very well be your water pump if you did not change the impellor plate, and pump housing.

 

[DHPMARINE]

Re: 77 25 hp evinrude running hot

You can drop the lower unit again and try blowing air up the water tube(s).If it is definetly blocked,yes you have a blockage somewhere.Unfortunately if SOME air goes thru,it proves nothing because air will go past a partial blockage easier than water.<br /> We usually pull the powerhead and cylinder head as well as exhaust cover,follow water passages,and clean all.DHP

 

[mncafik]

Re: 77 25 hp evinrude running hot

I had a water circulation prob with my 4hp evinrude.. run in the salt chuck lots, I ran it in a barrel with lots of CLR.... completly cured it...It must have cleaned out the water jacket in the powerhead.......

 

[MarkAB]

Re: 77 25 hp evinrude running hot

Mike,<br /><br />What is CLR?

 

[rickdb1boat]

Re: 77 25 hp evinrude running hot

clr