1981 2hp--How can I tell if it's pumping H2O?

[denL]

My friend bought a 1981 Evinrude 2hp (E2RC1B). The engine didn't get hot after running it for 1-2 mins but I couldn't tell if it was pumping water. Is there a way to tell? Thanks!

 

[bktheking]

Re: 1981 2hp--How can I tell if it's pumping H2O?

Don't see a telltale or exhause port on the diagram, is there a port on the back of the exhaust housing? Did you run it in a barrel?

 

[denL]

Re: 1981 2hp--How can I tell if it's pumping H2O?

I did run it in a barrel. I have a 1987 service manual and it looks like the water flow comes out the bottom near the cavitation plate. I just wasn't sure if his motor is the same. Do you think it would overheat in just a couple of minutes? I checked the motor and it wasn't hot at all after 2 mins.

 

[bktheking]

Re: 1981 2hp--How can I tell if it's pumping H2O?

Hard to say, single cylinder not under load. I'd say after 2 minutes you are probably ok, I imagine if it weren't pumping it would get hot in less that a minute.

 

[Vic.S]

Re: 1981 2hp--How can I tell if it's pumping H2O?

There is no peehole/telltale

the water flow does leave, with the exhaust, from the outlets above the prop twixt leg and gearcase assy.

As suggested you should get a few drops, a fine spray or a mist from the exhaust relief port(s) on the back of the leg.

I doubt if it will over heat in 1 or 2 minutes at idle .

Run it for longer keep feeling the cylinder and the head, but not the bolted on square exhaust manifold cover.
It should never get so hot that you cannot touch and keep a finger on it for a couple of seconds although the centre of the head around the plug and away from the water channel will be a bit hotter. A splash of water should not sizzle.

Any discolored paint may indicate over heating.

If in any doubt and esp if not changed recently fit a new pump impeller.