changing lower unit ... where the heck is the drain plug...

[Tony Payne]

ok... The grab bag article is great, but **I** had to get the lower unit that doesnt look like the picture...



There is an upper screw, but no lower... not underneath, not on the rear, nowhere.



Am I supposed to pick the boat up and tip it or something?



HELP!

 

[Mark Hofman]

Sim:



Log onto the Mercury Marine Parts Express website with your outboard's serial number handy (link below):



Go through the rigamarole of searching for a dealership.



Then, when you see the menu under PARTS & ACCESSORIES CATEGORY SELECTION, choose "Gearhousing (Driveshaft)". My motor had three options (Standard/Counterrotation, Standard Rotation, and Counter Rotation). I found the right diagram under the Standard/Counterrotation, but you may have to search for the right diagram.



The exploded parts diagram will give you a general idea of where to look. My part name was "Screwkit/Drain" and shows that I have two. One high and one low.



Your XB250 may require you to call your dealership. That's all the help I can provide.



MOFish (Mark Hofman)
http://www.mercurypartsexpress.com/PartsExpress/ProductSelection/ServiceParts/sphome.asp?CID=

 

[Larry Harp]

1/4" drill bit should fix ya right up.



Harpo

 

[TrepMan]

1/4"?? Harpo that's a toothpick, grab the 1" diamond tipped concrete drill bit!!!

 

[Bruce Freeman]

Put some bearing grease on that bit, so there won't be any shaveings in the case when your done...........

BF

 

[Tony Payne]

Mo... I'll try that... only problem is that I'm fairly sure this isnt the "standard" lower unit... It's "grey" (not black) and I know that Pat put it on just before I picked it up...wonder where it's model/serial # would be?



Hopefully Pat will chime in here and give me a clue...



Sooner, Trep, Bruce... thanks! I'll keep that in mind, but I think I'd rather just tip the boat up on end!

 

[Bruce Freeman]

Mofish says it's and XB? If so I can find out Friday. (Love that sound) because of the special case there may not be one? So if Bob or Pat don't tell ya, I will check.

BF

P.S I was telling the truth about the grease though.

 

[Tony Payne]

It's definitely an XB... based on this picture,



(from the link Mo gave Thanks Mo!)



It's part # 72... of course the pic don't show _where_ it goes, but I can assume from this it's under the prop, near the shaft itself.



I know, I'll just start screwing around until some fluid leaks out.... that ought to help.

 

[Tony Payne]

Here's the lower unit diagram (based on the merc site)



My serial # is 0G981331

 

[Jack Long]

Hey Sim, Take your prop off and the lower drain plug is right under the prop shaft. Later<>?< <>< <>< Jack

 

[TOMMY RICH]

Yep...#72...#73is the standard gasket I think:unsure:

 

[Dan J.]

Mine was where Jack noted. My tech's did all the servicing, but I remember seeing it when changing wheels while rigging.