Outdrive leaking. Can I DIY reseal?

[liusigou]

I searched in Youtube, But I cannot find the right video to learn how to reseal. A few years It took me more than 1000 to do the reseal. My engine is Mercruisier 2.5L,1989, Serial No. is 0C397712.

I have done the pressure test.

 

[nola mike]

Lots of good info in the stickies.

Drive leaking oil

My drive is leaking oil. (1966-1991) (See next post for Gen II) So, you have a Mercruiser 1 drive (MC-1), R, MR or Alpha One and it’s leaking oil. You want to know where from and how to fix it. The first thing to consider is getting a few tools and some test equipment and running a pressure...

forums.iboats.com

 

[achris]

Outdrive leaking. Can I DIY reseal?

If you have the Merc factory service manual, yes. If you don't, don't even think about it.

The correct manual for your Alpha One drive is Manual #6.

Chris....

 

[liusigou]

If you have the Merc factory service manual, yes. If you don't, don't even think about it.

The correct manual for your Alpha One drive is Manual #6.

Chris....

Thank you Chris. I'd like to watch the video and then I try

 

[liusigou]

Lots of good info in the stickies.

Drive leaking oil

My drive is leaking oil. (1966-1991) (See next post for Gen II) So, you have a Mercruiser 1 drive (MC-1), R, MR or Alpha One and it’s leaking oil. You want to know where from and how to fix it. The first thing to consider is getting a few tools and some test equipment and running a pressure...

forums.iboats.com

Thank you so much.

 

[Bt Doctur]

you dont say where its leaking, but the manual is a must. check the web

 

[liusigou]

you dont say where its leaking, but the manual is a must. check the web

I can do a pressure testing and I can tell you where is leaking. But I do not have the experience to fix. I will try if I find a video in youtube

 

[Bt Doctur]

If its the upper inputshaft seal you need the tool for the carrier nut, then ordinary tools for the R/R
Shift shaft bushing is another tool but can be made from an inpact socket and disc cutter.(whiz wheel)
prop shaft is more involved, you need the special tool to remove the nut ring
and a puller to remove the carrier and most likely Oxy/Acetlene for the hear.

 

[liusigou]

If its the upper inputshaft seal you need the tool for the carrier nut, then ordinary tools for the R/R
Shift shaft bushing is another tool but can be made from an inpact socket and disc cutter.(whiz wheel)
prop shaft is more involved, you need the special tool to remove the nut ring
and a puller to remove the carrier and most likely Oxy/Acetlene for the hear.

Is there any video for resealing mercruisier outdrive ?

 

[achris]

Is there any video for resealing mercruisier outdrive ?

All you need is in the manual. Just follow that. Most videos aren't accurate BTW. I've seen quite a few that I have left comment on about stuff they have either missed, or got completely wrong, or things they are doing in a VERY unsafe manner. My comments are usually deleted as it points out just how bad the video really is....

Get the manual, follow that. As I said way back, you NEED the (right) manual...

Chris.......

 

[liusigou]

My outdrive leaks from shaft input. I will buy

Spanner Nut Wrench Replaces 91-17256.​

 

[liusigou]

How can the oil leak from shaft input?

 

[achris]

The yoke seal is damaged....

 

[liusigou]

The yoke seal is damaged....

Thank you Achris

 

[liusigou]

Hi Achris, Help me solve this issue. I have to buy a tool of

91-17256.​

 

[achris]

Before buying tools, do a pressure test and confirm the diagnosis. Then read the manual and learn what's involved in replacing that seal. (You are going to need a lot more than just that nut spanner)...

Chris...

 

[liusigou]

Can I temporary use my outdrive leaking oil from yoke?

 

[achris]

Can I temporary use my outdrive leaking oil from yoke?

If you're happy with the risk of destroying the gears in the drive shaft housing when they run dry of oil, sure...

(I would not!)

Chris...

 

[liusigou]

ok. I will try to solve this issue

 

[liusigou]

Now I am doing the pressure test for my old style outdrive whose length of shaft is shorter than my current outdrive which is oil leaking from shaft joke