1972 65hp lower unit removal

[jimmbo]

Time to take it apart.

https://www.youtube.com/watch?v=TUzw7d1O92Q&t=37s

 

[S. S. Lanier]

Updated: After having a heck of a time taking it apart we got to the forward thrust bearing and it was shattered. We haven't gotten the oil pump out. Getting the snap rings out was a pain. Could the thrust bearing be the problem?

 

[racerone]

The problem is the debris that went through the system !----Now the precision bore of the shift piston is compromised and the piston can not move properly.----Time to find some used parts I think.-------What do all the rest of the parts look like ?----Drive shaft / pinion bearings etc, etc.------I believe the oil pump has 1/4-NC threads to help pull it out.

 

[Faztbullet]

If thrust washer wash damaged most likey the oil pump face us damaged along with bearing surface of forward gear. Might be cheaper and faster to find a used unit and slap on it...

 

[S. S. Lanier]

Everything looks good so far other than thrust bearing.

 

[racerone]

Let us know when you get the pump out !!

 

[S. S. Lanier]

Got the pump out. Only problem we seen was a small tear and grit on the screen in it.

 

[racerone]

Does the shift piston move freely in the oil pump bore, yes , no ---not sure ?

 

[S. S. Lanier]

Not sure exactly what to look for. All of the pieces that do move are moving fine. There's nothing noticeably wrong other than the screen.

 

[racerone]

Post #1 you are trying to replace the clutch dog spring.----So is the clutch dog spring broken ?---Does it appear that there is something wrong with the spring ?

 

[S. S. Lanier]

The spring is not broken. However the thrust bearing is shattered. I've attached a picture of the screen from the oil pump.

 

[S. S. Lanier]

[No message]

 

[jimmbo]

iboats shows one screen in stock, the Thrust bearing Assembly looks like it is still available

What condition are the gears and Clutch Dog? Other Bearings?

http://ww2.iboats.com/Gearcase/dm/ca...iew_id.1533139

 

[S. S. Lanier]

We actually have a spare lower unit my dad gave us to use for parts. Working on that today

 

[Faztbullet]

The forward gear is bad as the surface the thrust bearings run on are gaulded