1956 Evinrude Sportwin 10012 water pump issues

[RowerMan]

Hi everyone!

I recently acquired a 1956 Evinrude Sportwin 10HP model 10012 to power my rowing dory when the arms and legs get tired or I get lazy. I saw the motor pump plenty of water running in a barrel but when I took it out on the water for the first time nothing came out. I keep reading forums and looking for videos, and so far have had the lower unit off twice trying to fix the issue. The rubber impeller looks like new, and I'm not sure what else to check from here. Any suggestions would be greatly appreciated. Thanks!

 

[Daviet]

Re: 1956 Evinrude Sportwin 10012 water pump issues

Drop the lower unit and attach a water hose to the water tube going up to the engine and see if you have a good water flow through the block.

 

[RowerMan]

Re: 1956 Evinrude Sportwin 10012 water pump issues

I just tried again to confirm and water flows fine through the block and out the exhaust. I'm trying to attach some pictures of the impeller to see if anyone knows if everything looks okay. Does anyone know the proper procedure for installing the impeller for this motor? I can only assume I'm doing something wrong.

Thanks everyone, this is the first outboard I've worked on and this forum has been a lot of help!

 

[RowerMan]

Re: 1956 Evinrude Sportwin 10012 water pump issues

 

[kfa4303]

Re: 1956 Evinrude Sportwin 10012 water pump issues

Hi Rower. The impeller itself looks fine. Make sure the at the copper water uptake tube is properly seated on both the top of the waterpump housing and the underside of the motor. Here's a handy link that may be of some use.

http://www.outboard-boat-motor-repa...ower Unit and Replace Impeller Water Pump.htm

http://www.outboard-boat-motor-repa...ohnson 5.5 HP 1954-1964 Tune-Up Procedure.htm

 

[HighTrim]

Re: 1956 Evinrude Sportwin 10012 water pump issues

You have the drive pin in correct?

 

[1946Zephyr]

Re: 1956 Evinrude Sportwin 10012 water pump issues

Always oil up the grommets good, when you re-install the lower unit. That helps prevent the grommets from collapsing into the impeller housing.