Driver Shaft question (problem shown on pic)

[basstracker2008]

Hi!

Here's what I did before I raise my question: Motor is 1999 Force 40 HP.
1. replaced impeller as part of my preventative maintenance.
2. assemble it back on
3. noticed drive shaft is a little hard to turn. I'm not sure if this is the same as before I changed the impeller.
4. after I finish assembly, tested it on a bucket full of water for about 10 min.
I did move the gear forward to test if forward gear works. After about 9 min I noticed my shift rod is not yet connected. turn it off.
5. disassemble it again to double check why drive shaft is hard to turn.
6. I noticed 2 lines on drive shaft closed to spline. see 2 line (like a ring) on link below. I'm not sure if these lines are already there before I changed the impeller.

Please share your thoughts before I make more damage to this expensive parts or other parts connected to this.

http://i254.photobucket.com/albums/hh92/greatyear2008/DSC07528.jpg
http://i254.photobucket.com/albums/hh92/greatyear2008/DSC07504.jpg

Thank you

 

[basstracker2008]

Re: Driver Shaft question (problem shown on pic)

Hi!

Here's what I did before I raise my question: Motor is 1999 Force 40 HP.
1. replaced impeller as part of my preventative maintenance.
2. assemble it back on
3. noticed drive shaft is a little hard to turn. I'm not sure if this is the same as before I changed the impeller.
4. after I finish assembly, tested it on a bucket full of water for about 10 min.
I did move the gear forward to test if forward gear works. After about 9 min I noticed my shift rod is not connected to lower end of shift rod. Turned off immediately. Did not take this as an issue.
5. disconnet L/U again to re-inspect drive shaft and why it is a little hard to turn.
6. I noticed 2 lines on drive shaft closed to spline. see 2 line (like a ring) on pic below. I'm not sure if these lines are already there before I changed the impeller.

Please share your thoughts before I make more damage to this expensive parts or other parts connected to this.

http://i254.photobucket.com/albums/h...8/DSC07528.jpg
http://i254.photobucket.com/albums/h...8/DSC07504.jpg

Thank you

 

[Frank Acampora]

Re: Driver Shaft question (problem shown on pic)

The water pump on mid sized to larger engines takes somewhere around 5 to 15 horsepower to operate. With a new impeller, there will be significant drag that you feel if you try to turn the drive shaft by hand.

I'm not sure, since I have not worked on that engine, however, those two lines look suspiciously like the typical pattern of a seal. There may be a seal in the block that keeps water from corroding the drive shaft/crankshaft junction.

 

[jim kinser]

Re: Driver Shaft question (problem shown on pic)

Take a look at this and it may answer your question. http://www.mercruiserparts.com/Show...inbr=2532&bnbr=11&bdesc=ADAPTOR+PLATE+-+UPPER