Water coming from hole in lower unit - normal? Plus temp issues

[Gas Giant]

Hello gang,

Engine is a '78 Johnson 85HP. I think the model no. is 85ML78C.

First off, I feel like an idiot for not knowing this, but does water normally come out of this hole in the lower unit? I don't really remember seeing water shooting out of this hole. See below:

http://i79.photobucket.com/albums/j152/V8PunkRocket/Boatlowerunitwaterstream1_zps454a8ce3.jpg


Also, today I took some temperatures with an infared temperature gun while the engine was running. I did it because one cylinder head felt way too hot to the touch. On the port side cylinder head, I got around 150F, and on the other side I got over 200F. I don't think either head is supposed to get that hot. I didn't have any overheat alarms - I don't know if those are hot enough - but I did check to see if the buzzer in the control box worked. It does.

I assume these temperatures, at least one of them, is too high? I thought these thermostats opened at around 143?

I replaced the thermostats last year when I got the motor running. Water pump is older, and due to be replaced. So I am going to go and replace the water pump and thermostats again. Other than that, is there anything else I should do to the cooling system on this motor?

Thanks in advance.

 

[F_R]

Re: Water coming from hole in lower unit - normal? Plus temp issues

There are all manner of drain holes specifically designed to get your shoes wet when running on muffs. Don't worry about them (the holes).

You cannot test a water pump by running on muffs. Have you checked the temps with the boat in the water?

 

[Gas Giant]

Re: Water coming from hole in lower unit - normal? Plus temp issues

I was running it on the muffs. I'll have to see if I can drag it down to the ramp if the weather cooperates.

This whole thing started because not long ago I felt the "pee stream" while the motor was running and it was unusually hot. It hasn't done that since, but it made me wonder about the health of my cooling system.

 

[Bob_VT]

Re: Water coming from hole in lower unit - normal? Plus temp issues

Hello gang,

Engine is a '78 Johnson 85HP. I think the model no. is 85ML78C.

I replaced the thermostats last year when I got the motor running. Water pump is older, and due to be replaced. So I am going to go and replace the water pump and thermostats again. Other than that, is there anything else I should do to the cooling system on this motor?

Thanks in advance.

Replace your water deflectors and clean all the cooling passages in the heads and around the cylinders.

OMG This comment made me laugh

I was running it on the muffs. I'll have to see if I can drag it down to the ramp if the weather cooperates.

You are in FLORIDA!!!! Come on up NORTH and I will be happy to demonstrate poor weather

Yeah just back it into the water and no need to launch but the "full water" around the motor and lower unit will help.