Water pump install

[jimp37]

Hello, I am trying to fit the impeller and key pin { while inside the metal cup } over the shaft and it just won't slide down.Must be a trick to this that I am missing. 1994 Evinrude 9.9 E10ELERB. When I do eventually get it down, is the key pin supposed to align within the flattenned out area at the bottom of the shaft as shown in the picture? Posted other pics as well of the impeller and key pin and top of shaft.

 

[racerone]

Edit

 

[racerone]

Wrong procedure !--Install the lower pump plate.---Put pin on the flat part of the shaft with a bit of grease.----Then install the impeller , make sure pin will drive the impeller.-----Install cup in the housing.------Lower the housing down on the impeller and rotate the shaft in the direction that the motor runs.----Push down gently on the housing and the impeller works it's way in.

 

[OptsyEagle]

+1 ^

If it did slip on the way you were doing it, the impeller would never rotate on the drive shaft and pump water.

 

[ssportsmfg]

Oh I just looked at your picture of your key it is round, easier than mine, you don't have to worry about direction on the key

I just finished installing my new water pump (complete unit like you). Grease the key and stick it to the flat part of the drive shaft


What I did was line up the flat of the shaft to the corner hole on the wear plate, then after installing the impeller in the cup line up the matching recess for the key to fit in with the same corner hole, then slide the whole works down the shaft keeping the mounting holes lined up, mine went on first time. It won;t go on unless everything is aligned.

Remember that when you look at the cup while putting the impeller in it, the top of the impeller goes in first. The bottom of the impeller is the side that the slot for the key is open on, the top of the impeller bearing is closed (key can't slide in).

HTH

 

[racerone]

????????------The 9.9 impeller can be installed both ways, there is no " top " on a 9.9 impeller !

 

[jimp37]

Yep, I fiddled around with it this morning and remembered how I did my buddy's water pump on his evinrude..I had forgot that the key goes first { sticks on the shaft with a dab of grease}, then other components follow, and yes, this impeller has the key slot all the way through top to bottom so I am guessing it doesn't matter much how it's oriented when installing.

 

[jimp37]

With pump housing removed, I accidentally grabbed the driveshaft and the shaft slid out of the lower unit for a second. Slid back in and still turns prop forward and reverse, although there is about 1/4" play in either direction when turning shaft by hand, before the prop spins. Can't recall if this is the way it was before the shaft slid out. I know it's not a good thing to accidentally pull out the lower shift shaft, but what about the driveshaft??

 

[racerone]

You can pull that shaft out and put it back in all day long and nothing bad will happen.---The play in rotation of the prop is also normal and no different than the day the motor left the factory !

 

[jimp37]

whew...good to know. Thank you sir!

 

[jimp37]

Update - new parts have not arrived yet but I think I goofed and forgot what position my shift lever was in when I yanked the L.U. { I messed with the shift lever since}. I can position the shift lever in forward when reassembling but do not want to pull up on the lower shift rod to find out if that was left in forward, in the scary even that I completely pull it out of the LU. Should I push the lower shift rod all the way down as well as the shift lever in reverse to make sure they both match?

 

[ssportsmfg]

????????------The 9.9 impeller can be installed both ways, there is no " top " on a 9.9 impeller !

Ok, that is great, but had there been a "top and bottom" that would be the way to do it.

 

[racerone]

Shift lever position matters only to get enuff room to hook up the shift rod properly.--Just make sure that the notch in the shift rod is lined up perfectly before you install the small bolt.

 

[jimp37]

ahhhh another sigh of relief, thanks very much for all the help!

 

[racerone]

Basically you make sure the upper rod is down and the lower rod is up.---That gives you the most working room.-----Once shift rod bolt is PROPERLY installed then it all goes smoothly I think.

 

[jimp37]

Not sure what position the lower shift rod is in, I'd really hate to pull it up thinking I'd be putting it in forward but then pull it out completely { in the event it's already in forward}. I'll take your advice and put the shift lever in reverse but will leave the shift rod alone and hope I have enough room when reassemblng. This is much different than another evinrude pump I installed. There was simple access to the rod linkage via a rubber diaphram on the side of the mid section.Might have to fashion a modified tool via bench grinder for this one though!

 

[racerone]

Again you mis-understand.--------You pull the lower rod up !!!-------You can not pull it out of the gearcase if it is properly threaded in !!!!!

 

[jimp37]

Ahhh, I guess I did. I had always thought the bottom of those rods just delicately sat within the inner bearings. Had no idea they were threaded in there.

 

[jimp37]

No Title

Got the new pump kit today. For the 2 parts on the right, are these supposed to have sealant applied before installing onto the pump? The smaller parts gets inserted into the top, and the rubber ring goes around the top of the housing.