Evinrude Lower unit compatability

[joshsmith75]

Hey guys,
I have a 1988 200hp evinrude (e200stlccm) with a crack in the lower unit. One of my friends tells me it is a high performance after market upgrade (Bob's maybe?) not sure on that. Anyway, I need to replace it fairly quickly obviously- even though it's running just fine right now. I need some advice from someone that knows a bit more than me on lower unit compatibility. I found a lower unit from a 1985 150 horse evinrude on craigslist that I need to move quickly on if it will work. I'm afraid I know just enough about these things to be dangerous. Could someone please advise me on this? Please and Thanks!

[pauldavid]

its the same as long as the driveshaft are same length. 20 inch is most common but also make a 25 inch

[joshsmith75]

Thanks! I found a site that confirmed that but didn't know if I should trust it.

[ChampioNman]

If you can post up a picture 800 X 600 pixels of the case it may just be a seam where the nose cone is attached to the original gearcase. they use bondo to fill in the seams so that may be what you are seeing.

[gearcaseman]

Is the crack you're seeing producing an oil leak? If not, it could be bondo cracking where the nose cone was applied and smoothed over. The 2 gearcases you have asked about are compatible, but the shift rod will have to be exchanged.

[joshsmith75]

You can see where lower unit lube is seeping out but the color is correct. It doesn't appear milky in color at all.

[joshsmith75]

Here is another with a pencil to show scale.

[joshsmith75]

Hmm it wont let me post another picture.

[ChampioNman]

Size it to 800 X 600 pixels

[gearcaseman]

This is in the area of the pinion bearing which is a bad place to see a crack. If you catch it in time, the internals might be saved and just get a housing and you'll have a spare gearcase.

[StarcraftSS]

Can the crack be welded?

[ChampioNman]

How does the other side look?

[gearcaseman]

Can the crack be welded?

No, Welding on the case in this area imposes too much heat, and will distort the bearing bore.

[Jbruno]

Jb water weld?

[gearcaseman]

JB would close the crack, but this is a high stress area and would more than likely re-crack.

[Bassmeister]

JB would close the crack, but this is a high stress area and would more than likely re-crack.

Listen to this man or wind up stranded on the water...JMHO

[gearcaseman]

Hey Mike, Long time no hear. How's everything ?

[omcforever]

Listen to this man or wind up stranded on the water...JMHO

Yep...

[hurky509]

that lower looks beat all to poo, run in skinny waterr? lol

[Bassmeister]

Hey Mike, Long time no hear. How's everything ?

All's good here Eddie, 'cept they's trying to work me to death!!!