Impeller Question?

[scsims]

If I have warm water spraying out does it mean that everything is working ok with the cooling system?

 

[trumpetbucks]

Re: Impeller Question?

If by "spraying out" you mean through the telltale and/or exhaust port(s), then it is a good sign but no guarantee.<br /><br />What's your motor and how long since the water pump was rebuilt?

 

[scsims]

Re: Impeller Question?

It's a 1960 3hp Johnson. From what I can tell it sprays out of 6 small holes on the front of the lower part of the shaft.

 

[Xcusme]

Re: Impeller Question?

Water spraying out those 6 little holes is the indication that your water pump is working. It's a good idea to remove the cowling and put a finger on the side of the power head and feel for excess heat. If you can hold a finger on the side of the block for a few seconds, then it's cooling OK. The top of the cylinder head (between the 2 spark plugs) will run a bit hotter and this is normal. It might be a good idea to replace the water pump impeller if you don't know the last time it was done. This way you will know for sure how old the pump is.

 

[Paul Moir]

Re: Impeller Question?

Those are the idle relief holes (exhaust ports). There's no telltale on that engine. There's a flush access screw just at the base of the tiller arm from which you can check & see if water is reaching the engine (but not necessarily going through! The screw taps the cooling water just before it enters the engine).<br />Don't run it for more than a couple seconds with the flush screw out though!

 

[scsims]

Re: Impeller Question?

I took the screw out under the tiller arm and water shot out just like you said a couple of feet. I felt of the motor on the side of the cylinder and in between the spark plugs it felt hot, but not so hot that I couldn't leave my finger there for 8 to 10 seconds or so. I think its cooling good.<br /><br />Should this motor have a housing covering the carb area? If so mine doesn't have one and where could I get one?

 

[wind knot]

Re: Impeller Question?

If it's the same as my 59' , 3hp it has a shrowd that covers the whole lower half of the motor. I'm not sure where you are going to find one, but maybe someone here has a connection. Either way, the motor will run fine without it. When I was tuning mine, I ran it without the shrowd for awhile until I was sure it was going to stay running good.<br /><br />Good luck, Darrell