'72 65Hp evinrude- Waterpump rebuild.

Devilfish

Seaman
Joined
Aug 15, 2004
Messages
57
Hi,<br /><br />Quick question. In my over eagerness to replace the water pump. I forgot to take note of how the impeller fits into the housing. Which way should the blades face?<br /><br /><br />Regards<br /><br />Ian
 

Droll

Chief Petty Officer
Joined
Jul 30, 2003
Messages
514
Re: '72 65Hp evinrude- Waterpump rebuild.

Turn the drive shaft the same way the engine does turn ,and you will see . ;)
 

Walker

Captain
Joined
Jun 15, 2002
Messages
3,085
Re: '72 65Hp evinrude- Waterpump rebuild.

Turn the driveshaft clockwise and the fins will be facing counterclockwise. Actually, I doesn't make any difference which way you put it in. The fins will turn the correct way as soon as you start the motor.
 

Devilfish

Seaman
Joined
Aug 15, 2004
Messages
57
Re: '72 65Hp evinrude- Waterpump rebuild.

Ok Thanks,<br /><br />Done that. <br /><br />Now, Which way does the driveshaft seal fit into the waterpump cover? Spring facing down or spring facing up?<br /><br />thanks
 

rodbolt

Supreme Mariner
Joined
Sep 1, 2003
Messages
20,066
Re: '72 65Hp evinrude- Waterpump rebuild.

turn the impeller correctly there is NOT enough room for the blades to reverse in the housing. some of the jabsco and johnson pumps will evinrudes wont. I get 2 or 3 a year with "new" pumps that overheat due to the impeller blades being backwards.<br /> good luck and keep posting
 

Devilfish

Seaman
Joined
Aug 15, 2004
Messages
57
Re: '72 65Hp evinrude- Waterpump rebuild.

Ok. I have the impeller in the correct way.<br /><br />Now, Which way does the driveshaft seal fit into the waterpump cover? Spring facing down or spring facing up?<br /><br />If I get it wrong the seal will fail<br /><br />Ta
 

ob

Admiral
Joined
Aug 16, 2002
Messages
6,992
Re: '72 65Hp evinrude- Waterpump rebuild.

On a single lip seal ,the spring faces the side you are trying to prevent from leaking in.
 

Devilfish

Seaman
Joined
Aug 15, 2004
Messages
57
Re: '72 65Hp evinrude- Waterpump rebuild.

Ok. <br />So the seal on top of the waterpump housing faces down to prevent water getting out of the impeller housing? Right?<br /><br />Hope so.<br /><br />Thanks for the help by the way
 

Devilfish

Seaman
Joined
Aug 15, 2004
Messages
57
Re: '72 65Hp evinrude- Waterpump rebuild.

Ok.<br /><br />Waterpump fully rebuilt and operational.<br /><br />many Thanks<br /><br />Ian
 
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