Water pump pipe/tube question in my 1994 20 hp 2 stroke Merc

moi

Petty Officer 3rd Class
Joined
Aug 31, 2008
Messages
78
Hadn't replaced impeller since getting the motor along with the 14 ft Sylvan Sport Troller it was mounted on. And, due to health issues it didn't see any use last year so I figured it needed to be done. Still a little "shaky", but figured I need to do some fishin' this year, at least.

Did as much research as I could on-line & etc. and managed to find the shift shaft disconnect after first removing the starter. Next, tackled the four lower unit bolts. Should have borrowed brother-in-law's impact wrench because removing those bolts was a snake pit. Had to use a 1/2 " breaker bar & 5/8 socket to remove each bolt. Looked them over after removal and they looked like they had been replaced with some epoxy added by whoever installed the last impeller.

Thing I wasn't prepared for was that the water tube/pipe from the pump to the power head came out with the lower unit, still attached to the pump. Pulled it off the pump and found a raised section on the tube intended to keep it attached to the pump. Went ahead and rebuilt the pump (new gaskets, O ring, & impeller) and now getting ready to put it all back together.

Question is, should I attach the water tube to the pump, or should I attach it to the power head first?? None of the exploded view illustrations I've seen show the water tube attached to the pump and nothing I've read says anything about the water tube.
 

MH Hawker

Vice Admiral
Joined
Jul 13, 2011
Messages
5,516
Put it up in the power head first, its all most imposable to align up with out it in place up there.
 

moi

Petty Officer 3rd Class
Joined
Aug 31, 2008
Messages
78
Put it up in the power head first, its all most imposable to align up with out it in place up there.


I'm still debating it. I stuck the pipe back into the powerhead without much trouble at all. I'm leaning towards attaching it to the pump, the same way it came out. Was hoping there was someone who actually had some experience with similar vintage outboards. Will probably get back to it tomorrow.
 
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