yamaha 70 etlg (88)h20 pump

[robdobdoo]

does this outboard need a sleeve inside the h20 pump housing next to the impeller and does it have a key that fits in the shaft tahat turns the impeller?

 

[Profittakr]

Re: yamaha 70 etlg (88)h20 pump

Yes - there is a metal 'cup' that the water pump spins in. It is as tall as the impeller and slightly smaller diameter and the impeller 'squishes' into this cup to make a tight seal. This is underneath the plastic water pump housing. Your 2nd question is if the water pump shaft has a key on it to turn the water pump and the answer is yes I believe it does. I did not change mine this year but I am sure it does.

 

[robert graham]

Re: yamaha 70 etlg (88)h20 pump

If you buy the water pump kit, it comes with all the parts, new woodruff key, cup, gaskets, impellar, etc...get the kit and replace everything, only cost a few bucks more than "just the new impellar". Check: SIMYamaha-Andy's Tips gives step by step instructions with photos for water pump replacement, different HP motor, but the basics are very similar. Good Luck!

 

[99yam40]

Re: yamaha 70 etlg (88)h20 pump

The housing comes separate from the kit