I removed the lower case to have some work done to it. When I reinstalled it I now have problems shifting. There was what appeared to be 2 drive shafts between the upper and lower case. I assume one is for the water pump? The other is obviously to drive the prop. Does my shifting problems have to do with the shafts?
2006-06-24 18:23:41 · 2 answers · asked by subgenius 4 in Cars & Transportation ➔ Boats & Boating
I just spent my weekend doing the water pump - so I had it all apart. From the back ( standing behind the boat), the first shaft looking thing is the plastic/metal pipe for output of the water pump. Then there is the drive shaft for the prop and way at the end towards the boat is the shifter shaft. It mates up with a linkage that seats into the geared teeth. Its about 2" long, it passes through to the exposed top side and you can use your finger to feel it from behind. The linkage to your gear shifter engages it. When reasembling the lower case to the top I had to fiddle with the piece to get it to mate up. I dont know how to verify what gear your lower unit is in - but once you are certain it is in forward - and your throttle is in forward - assembling the two to mate will do the trick. Becaue of the geared teeth - its easy enough to have it "fit" in any situation.
2006-06-25 13:59:23 · answer #1 · answered by nphxaz 2 · 0⤊ 0⤋
You are correct that one is the drive shaft and the other for the water pump. By the way, NEVER crank that puppy without water available for the intake. You will immediately toast the rubber pump impeller. It's been about 15 years since I last had my mercruiser in/out, but it seems like there was a small rod that ran down the drive unit and changed the gears down on the prop shaft. Like a quarter-inch rod? Been too long to be certain. Sorry I can't be more helpful.
2006-06-24 18:40:28 · answer #2 · answered by Anonymous · 0⤊ 0⤋