Reply To: 67 33HP Evinrude running very hot

[Don]

bob-d wrote:

Thanks everyone.
Frank thanks for jumping in……..hey at least it wasn’t an oil question. 😃.
I’ll start digging into the gear case and check the water pump / impeller / overall flow. Although when I rebuilt the motor I replaced most of the parts to err on the side of caution. I did have flow when I noticed the steam water mix, possibly not strong enough? Don’t remember if I used a Chinese knock off impeller or a OMC? Will definitely try the barrel power drill method to check water flow, thanks Jeff for the idea.
Frank, my lower unit is getting red hot exactly in the same spot as the picture of the junked motor,  interesting.
I’ll also pull the intake cover plate and look for a crack.

I have so much (more than it’s worth) invested in the motor. After having a number of questionable motors in the past, my plan was to build at least one super reliable motor for my main boat. I’m on a very large lake , and breaking down 5 or 6 miles out is no fun. This was going to be my go to motor. Just get in turn the key and drive…….. well at least not yet.
Thanks again,
Bob D

Chances are pretty good that the barrel/drill test won’t tell much, I’m sure you will see flow out of the impeller housing.   Needless to say, I would avoid the chinese knock off impellers at all cost, replace it with an OEM.  Let’s have a closer look at the exhaust hsg cavity where underneath the cooling bleed hole.