Is there such a thing as peeing too hard?

B

billhig

Cadet
Joined
Apr 27, 2025
Messages
28
Is there such a thing as peeing too hard? After I got my OEM water pump installed and a blockage removed, my '79 40 HP really pisses hard. It shoots out straight a good 5 ft. This is dead cold with the thermostat not open yet. The engine is turning about 900 RPM. Does this indicate a problem or am I just paranoid? I tested the thermostat and it opens at 145F. I replaced the poppet last year.
 

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C

Chris1956

Supreme Mariner
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Mar 25, 2004
Messages
28,693
the device is called a telltale, because you can see it. It does not affect cooling.
 
R

racerone

Supreme Mariner
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Dec 28, 2013
Messages
39,518
What is the water pressure on that hose?-----Test it on the lake I say.
 
C

Chris1956

Supreme Mariner
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Mar 25, 2004
Messages
28,693
DeepCMark58A said:
If you do not see the telltale it defiantly effects the cooling.
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Not exactly true. Telltales clog all the time, but the volume thru them is very small, so cooling is not affected if just the telltale is clogged.

The telltale is only an indicator that the waterpump is working. It does not tell the amount of water the waterpump is pumping.

Specifically, if there is no telltale, the telltale could be clogged or the waterpump is not working, or both.

On a lot of Merc's, you can remove the motor cowling and pull the telltale hose off the cylinder head water jacket cover and see if the waterpump is working. If the water is pumping properly, unclog the telltale, and go boating.
 
M

Mc Tool

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Aug 7, 2024
Messages
1,288
I think its one of them things where you dont realise how bad things had got untill you fix it .......Im talking about the outboard 😆. Im sure you have all heard the joke about the Dr prescribing viagra for Grandad to stop him pissing on his slippers 😁
 
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