Water Pump Replacement - Good News and Bad News

Finally started the water pump repair on my 1996 Johnson 112VR. I bought the boat in 2001 and have not dropped the lower unit since then. Don’t know if it has ever been removed, for that matter.

Anyhow, I put some penetrating oil on all the bolts a few days ago, and all 6 of them came right out with no problem (which was a good thing.) Because I have to disconnect the shift linkage, the Clymers manual told me to remove the retaining clip, which I did with no problem.

Now for the bad news. I had an extra set of hands nearby when I removed the last bolt, expecting the lower unit to detach. It didn’t, even after I went around the unit (gently) with a rubber hammer to persuade it. I could see some gapping in a couple of areas, but it won’t come apart.

Is the lower unit simply stuck to the upper housing because it may have never been apart, or do I not have something loosened right with the shift linkage? Should I move the shift cable back and forth? The directions say (after the retaining clip is removed) to push the shift lever toward the power head to disenage the shift shaft from the bellcrank on the port end of the engine’s shift shaft. When I took the clip out, the shaft was in the reverse position.

What now, all you gearheads out there?

Sammie

6 bolts? Meaning the four on the sides of the lower unit, the trim tab bolt and the bolt above (behind) the trim tab?

I have heard of the drive shaft seizing inside the powerhead splines…Hope that isn’t your case.

If you are absolutely sure all the bolts are out, you can tap on the lower unit with a steel hammer as long as you keep a scrap piece of wood between the hammer and the lower unit.

If you do get it off, make sure you lightly coat the shaft splines with grease before reinstalling.

Ah…the mysterious 7th bolt under the trim tab that the idiotic Clymers failed to mention in their manual. Anyhow, I took this bolt out and the lower unit came out like it was supposed to. I should have known about this.

It was pretty greasy and oily in there. Is that to be expected after so many years?

And, by the way, thanks very much for the help. I will post pictures as I complete the job.

gravysandwich

Yeah, that one is often overlooked…

Since it is a 2-stroke and the exhaust goes through the housing and exits the prop, it will be a littly oily in there.