Motor Overheat With Good Telltale Stream?

[Cofe]

I was wondering, if it is possible for a motor to overheat with a good tell tale stream of water?

Common sense says that if the thermostat isn't working, and stuck closed, you can still have a good stream of water out of the tell tale.
(example: when a motor starts up cold, the thermostat is closed, and you have a good tell tale stream.)

So---- If a thermostat is stuck closed, the head is not cooled, but the cylinders are?

Any Opinions? Is this correct?

 

[bktheking]

Re: Motor Overheat With Good Telltale Stream?

Heck yes, the telltale is before the stat, all it indicates is that the pump is working. Depends on the motor, what are we talking about?

 

[Cofe]

Re: Motor Overheat With Good Telltale Stream?

Heck yes, the telltale is before the stat, all it indicates is that the pump is working. Depends on the motor, what are we talking about?

I know many boaters who think if they have a good stream out the tell tale, that their motor can't be overheating.

Just trying to clarify that a motor can overheat even with a strong stream out the tell tale

 

[bktheking]

Re: Motor Overheat With Good Telltale Stream?

Here's the logic. Stat is closed when a motor is started, agree? When you start the motor is water coming from the telltale? Yes? it does on my motors.
With that being said the 2 are independant of each other, telltale just shows that the pump is pumping, won't reveal blockage problems or stat issues.

 

[Elbo]

Re: Motor Overheat With Good Telltale Stream?

Sounds like the t stat not opening.

 

[Cofe]

Re: Motor Overheat With Good Telltale Stream?

Was talking to my neighbor. He was having trouble with his motor, and I told him that his motor was overheating. We were in disagreement, He said his motor had a good stream of water coming out, and it couldn't be overheating... and I just won 5bucks by posting here so he could see.......Thanks, I would share, but you know how the economy is and all...... Thanks!~

 

[bktheking]

Re: Motor Overheat With Good Telltale Stream?

That's like $20 here in Canada, I want half LOL

What motor is it out of curiousity?

 

[Cofe]

Re: Motor Overheat With Good Telltale Stream?

His motor is a 80 Evinrude 60hp.

And What? 20bucks Canadian? Is the US currency that far apart from Canadian currency? Im going to do a quick internet search.....LOL If that's the case I need to visit Canada for my next vacation.

 

[Cofe]

Re: Motor Overheat With Good Telltale Stream?

Hey.......5dollars Usa= 5.29 Canadian.....

Didn't think I'd check huh? LOL

 

[bktheking]

Re: Motor Overheat With Good Telltale Stream?

Ya I know, that was exchange of old, I remember my parents exchanging 100 CAD for like 65 US back in the day at the bank, I thought they were nuts.

Pull the head cover, stat is at the bottom. Drop in is a basket to inspect in a pot of boiling water and a temp gauge to test opening temp.