impeller replacement

scotta68

Cadet
Joined
Jun 9, 2005
Messages
6
i have a 1984 johnson 70 hp that i am in the middle of replacing the impeller and housing.i am not able to access the shift rod from under the carb. i have all else ready and the lower unit is separated, i have the side bolt on the linkage loosened to almost off but it will not separate. what is the best way, also i am following a seloc manual. scott
 

OBJ

Supreme Mariner
Joined
Dec 27, 2002
Messages
10,161
Re: impeller replacement

The pin bolt holding the shift rod to the shift lever must be all the out....removed Scott. Hope I read your post right...... :) We are talking about the "bolt" that holds the shift rod to the shift lever...aren't we? You get to it from the starboard side of the engine. It's below and to the rear of the lower carb.
 
Joined
May 14, 2006
Messages
8
Re: impeller replacement

Scott,<br />Let me tell you, I just went thru this whole ordeal and I just don't think these guys who mess with this alot understand (or see it) from our perspective who have never done this before.<br /><br />The screw that holds the shift rod on is VERY hard to get to. The shift rod comes up and slides between 2 prongs that and the screw that goes right thru the middle. In order to get the screw out, I did the following:<br /><br />1) Remove the Air intake box extender (not sure the technical name). <br />2) Remove the shift cable and throtle cable linkage.<br />3) Use a FLEX extension to unscrew the screw that goes thru the level and the actual shift rod. I can't remember the bolt size (3/8 maybe). I could not have done it without a flex extension.<br /><br />Then once you get the screw out, the shift rod will slide right out.<br /><br />Now the hard part is getting the shift rod back into place (line up) with the shifter so you can put that darn screw back in! I used one of those long flex things with 4 prongs that stick out when you push the button on the other end to hold the screw and push it back in once the holes are line up. I had to use a LONG screwdriver to move the shift rod in place, and once in place, push the locking screw in then tighten it up. Hopefully it will be a while before I have to do that again, but it was a learning experience to say the least. My waterpump works great now and glad I saved the $200 it would have cost me otherwise.
 

rickdb1boat

Supreme Mariner
Joined
Jan 23, 2002
Messages
11,195
Re: impeller replacement

And lets not forget, that once that bolt comes out, the lower unit will drop. Make sure you put a couple of bolts loosely back in to hold the lower unit up until you get the shift rod disconnected...
 

OBJ

Supreme Mariner
Joined
Dec 27, 2002
Messages
10,161
Re: impeller replacement

Hmmmm....I really think you have a point there Cajun. And...point taken.... :) Probably on occasion, we do take a little to much for granted.......hopefully on not to may occasions.<br /><br />You gave a good description of how it's done. Thanks!
 

scotta68

Cadet
Joined
Jun 9, 2005
Messages
6
Re: impeller replacement

thank you all very much, job is done without having to take anything apart, will check pump operation tommorrow as it was too late to wake the neighbors when i finished. thanks again, scott
 

Richard Kaye

Recruit
Joined
May 30, 2008
Messages
3
Re: impeller replacement

thank you all very much, job is done without having to take anything apart, will check pump operation tommorrow as it was too late to wake the neighbors when i finished. thanks again, scott

HOW DID YOU DO IT???? I HAVE TO THE SAME THING ON MY 60HP JOHN AND ARE LOOKING FOR SOME ANSWERS. THAT LONG PROCESS WITH ALL THE FLEX AND SWIVEL THINGYS SOUNDS LIKE A PAIN . IF IT CAN BE AVOIDED PLEASE LET ME KNOW. RK
 

samo_ott

Vice Admiral
Joined
Jun 18, 2006
Messages
5,125
Re: impeller replacement

thank you all very much, job is done without having to take anything apart, will check pump operation tommorrow as it was too late to wake the neighbors when i finished. thanks again, scott

Screw the neighbours! :) After a job like that you need to run it and celebrate :)

And RK, you should start a new thread.
 
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