1997- Mariner 135 - Water pump problem

sullmate · #1 March 26th, 2009, 04:59 PM

I changed the water pump, yesterday. I had the both the shifter and the shift shaft in neutral when I removed the lower unit. When finished and reinstalled the lower unit, the prop spun both ways, this seemed normal as it was in neutral. I noticed that the side console shifter seemed to shift too easily, (engine still not running). I put the shifter in forward ( the engine was not running). I tried to spin the prop. It is locked, it does not move. I put the shifter in neutral and the prop spins easily both ways. Also when I tried reverse, the prop would not rotate, still locked.
I need advice. I guess I am going to have to take the lower unit off again. (Uggh)
I guess the shift rod in not shifting or is not properly engaging the cam.
Please advise before I proceed.
Sullmate.
P.S. I have replaced the water pump before, but have not had this problem.
I have not started this engine this year, as the boat is in a garage, and the weather is just starting to get better in Ct.

bullbat · #2 March 26th, 2009, 05:26 PM

so whats the problem when the foot is in gear its not goin to rotate

sullmate · #3 March 26th, 2009, 05:57 PM

I believe when its put in gear, ( engine not running)you should be able to turn the prop in one direction either forward or backwards and hear a ratcheting sound.
When I take the boat out of the garage and start it I will know it the lower unit is engaged properly.
The engine will crank so I know it is in neutral. I am trying to get opinions as to whether I did something wrong and avoid taking the lower unit off again.

Sullmate

Chris1956 · #4 March 27th, 2009, 10:33 AM

You are correct. The prop will rachet in forward. it should ratchet while you turn it clockwise

sullmate · #5 March 27th, 2009, 10:44 AM

Chris,
What do you suggest I do? I guess the cam on the shift rod is not properly engaged. I then must take off the lower unit, again. I don't think it matters what gear the motor is in as long as both the shift rod and the shifter are in the same gear.
Your thoughts,
Sullmate

Chris1956 · #6 March 27th, 2009, 02:28 PM

I always use neutral for the LU and control. Neutral has a positive detent on the gearcase and it will stay there and not move. You might need to rock the throttle handle to line up the shift shafts.