1977 - 115hp Evinrude - Changing Water Pump

[guppies]

How do you un-hook the shaft from the engine to the lower unit when changing the water pump on a 115hp Evinrude

 

[ledgefinder]

Re: 1977 - 115hp Evinrude - Changing Water Pump

The connection is under the bottom carb. It's quicker to just pull the carbs (maybe clean them at the same time).

 

[lorax]

Re: 1977 - 115hp Evinrude - Changing Water Pump

speaking of changing OMC waterpumps...<br /><br />how do you get the water pump housing, w/o-ring, over the impeller? As you turn the shaft clockwise and lower the housing down over the impeller the impeller grabs the o-ring and twist it out of position?

 

[guppies]

Re: 1977 - 115hp Evinrude - Changing Water Pump

Dear ledgefinder, thank you. Do you have to pull the carbs? This is a '77 motor and it looks to me that the shaft comes up into the shifting leavers.<br />Hi lorax, unfortunately I have not got to the point of the problem you have described, maybe someone will help us out.

 

[lorax]

Re: 1977 - 115hp Evinrude - Changing Water Pump

guppies, I'm not an authority like these other guys but I have been into an old ('79 V4) recently. <br />On my motor the shaft goes up through the mid section and connects to the shift linkage with a screw. The screw is 7/16 (I think) hex head with a slot for a screw driver. It's located at the center, front of the motor below the carbs. I found it was most accessable when I turned the motor to the left and tilted it all the way up. I did not remove the carbs although that does make it easier.

 

[ledgefinder]

Re: 1977 - 115hp Evinrude - Changing Water Pump

Put the impeller into the housing first, then put the housing onto the driveshaft.

 

[ledgefinder]

Re: 1977 - 115hp Evinrude - Changing Water Pump

You don't HAVE to pull the carbs, just easier.

 

[guppies]

Re: 1977 - 115hp Evinrude - Changing Water Pump

To everyone, THANK YOU!!!

 

[Walker]

Re: 1977 - 115hp Evinrude - Changing Water Pump

Guppies, I think your motor has a shift linkage that sandwiches the shift rod. If so loosen the big bolt where the shift linkage pivots and spread the 2 pieces of the linkage. That should release the shift rod.

 

[Walker]

Re: 1977 - 115hp Evinrude - Changing Water Pump

Lorax, the o-ring goes under the impellor.

 

[lorax]

Re: 1977 - 115hp Evinrude - Changing Water Pump

thanks for the suggestions

 

[guppies]

Re: 1977 - 115hp Evinrude - Changing Water Pump

Walker and everyone else you have been most helpful. THANK YOU!

 

[Solittle]

Re: 1977 - 115hp Evinrude - Changing Water Pump

It would be money well spent to get an OMC shop manual.