Water in lower unit oil/ oil leaking

[Mwilson18]

I recently went to change the lower unit oil on my newly bought 1994 Johnson 150 HP fast strike outboard. When loosening the lower drain screw, water began to slowly weep out and once removing top drain screw I had a good pour of water for at least 30 seconds ( “oh crap”), followed by some milky oil.
After letting it drain completely, I filled the lower unit with fresh oil and then went to check my prop seal. When looking directly down into the cavity that surrounds the prop shaft housing, I can see several ounces of the fresh oil that I have just put in that has leaked out. I can’t tell if this is from the prop seal, and not to mention that the prop shaft is pretty bent as well. I would imagine my prop seal might be the culprit? Here are some pics of the oil I can see.

 

[racerone]

It would not take 30 seconds for water to leak out of a gearcase.------Fact.-----It is time to take this gearcase apart.-----Inspect all bearings.-----Inspect all gears.----A bent propshaft indicates the motor hit something.-----Impact may have damaged the gears.----In my opinion these newer gearcases ( 20" models ) are not as robust as 1980's models.

 

[Mwilson18]

It would not take 30 seconds for water to leak out of a gearcase.------Fact.-----It is time to take this gearcase apart.-----Inspect all bearings.-----Inspect all gears.----A bent propshaft indicates the motor hit something.-----Impact may have damaged the gears.----In my opinion these newer gearcases ( 20" models ) are not as robust as 1980's models.

I’m sure it’s had a collision (or multiple) also judging by how beat up the skeg is.

 

[Mwilson18]

I’m sure it’s had a collision (or multiple) also judging by how beat up the skeg is

It would not take 30 seconds for water to leak out of a gearcase.------Fact.-----It is time to take this gearcase apart.-----Inspect all bearings.-----Inspect all gears.----A bent propshaft indicates the motor hit something.-----Impact may have damaged the gears.----In my opinion these newer gearcases ( 20" models ) are not as robust as 1980's models.

Would you recommend trying to take apart myself? I am somewhat mechanically inclined and I have the original shop manual. But I understand taking apart/rebuilding the gear case requires a lot of specialized tools.

 

[racerone]

Your gearcase needs a complete teardown !

 

[Mwilson18]

Your gearcase needs a complete teardown !

Is this something I should attempt myself?? I am somewhat mechanically inclined and interested but I know that taking apart/ rebuilding the lower unit requires a lot of specialized tools. Is it worth just taking it into a shop?

 

[Crosbyman]

always time to learn

special tools may be required .. some utubes may help. get a good shop manual

put in the top oil bolt/screw & try to pressurize the GC via the bottom
with that much leakage you MAY have a busted gearcase and you will hear air rushing out if it leaks that much

where do you live... cold country ?? did the GC freze .... warm country ??

 

[Mwilson18]

always time to learn

special tools may be required .. some utubes may help. get a good shop manual

put in the top oil bolt/screw & try to pressurize the GC via the bottom
with that much leakage you MAY have a busted gearcase and you will hear air rushing out if it leaks that much

where do you live... cold country ?? did the GC freze .... warm country ??

I definitely want to give it a shot on my own, I hate to admit it but I actually enjoy the struggle lol
I live in New England and we’ve had weeks below freezing here for the past few months which has me worried after seeing the water in the GC. The boat was stored outside through most of the winter.

 

[Chris1956]

Price out a new gearcase from SEI. Now price out replacing the gears, bearings and the propshaft and see what the differential in price is.

 

[Mwilson18]

Price out a new gearcase from SEI. Now price out replacing the gears, bearings and the propshaft and see what the differential in price is.

Will do, thank you

 

[Faztbullet]

Looks like your running a Shooter or other small hub prop. These have a tendency to hammer the bearing carrier at raised transom heights. Unit need torn down, bearings and bushings checked and carrier swapped over to the 2000+ year with wedge

 

[Crosbyman]

I definitely want to give it a shot on my own, I hate to admit it but I actually enjoy the struggle lol
I live in New England and we’ve had weeks below freezing here for the past few months which has me worried after seeing the water in the GC. The boat was stored outside through most of the winter.

unfortunately the GC should have been drained and likely cracked.
draining and refilling is a seasonnal obligation. & with the sharp freeze temps going further South every year now I'll bet you a lot of GC will be cracked by next Spring !

 

[racerone]

Exactly the reason why I say ------" Outboards rarely get a chance to wear out ".--They are ruined by folks who do not know how to operated and maintain them.