Pulling drive Lower half

[77GlastronMT]

Do I need to drain the oil before i separate the upper and lower halves of the drive? On these older boats, where is the speedometer pickup? Thanks.

 

[Bt Doctur]

Re: Pulling drive Lower half

Well ,it depends. The OMC stringer only has 4 bolts holding it on.But its only a guess cause i dont know what you have.

 

[77GlastronMT]

Re: Pulling drive Lower half

Sorry I forgot I haven't filled out my signature yet and was thinking I was writing in my original post. It's a '77 Glastron w/ MCM 165 Engine and Mercruiser 165 outdrive.

 

[Eric 3.7LX Alpha 1]

Re: Pulling drive Lower half

You don't have to drain the drive before separating it, but it will get messy when they're apart.

There is no speedo sensor in the older drives, Alpha One Gen II's have them.

The boat might have a pitot tube for a speedometer, or sensor from the fishfinder/chartplotter transducer, but they have nothing to do with the drive.

 

[77GlastronMT]

Re: Pulling drive Lower half

Thanks Eric, that's what I was thinking so I'd better drain it before I pull it apart!

 

[MarkSee]

Re: Pulling drive Lower half

Plus when draining watch carefully the fluid that first drains out.
Meaning you want only the old gear lube coming out, not water.

Mark

 

[ktbarrentine]

Re: Pulling drive Lower half

Thanks Eric, that's what I was thinking so I'd better drain it before I pull it apart!

I'd recommend you consult your drive's maintenance manual before you pull it apart! (That would have answered both your questions!):watermelon:

 

[Bt Doctur]

Re: Pulling drive Lower half

http://www.boatfix.com/merc/Servmanl/6/6covr3.pdf

 

[achris]

Re: Pulling drive Lower half

Plus when draining watch carefully the fluid that first drains out.
Meaning you want only the old gear lube coming out, not water.

Mark

So, if the water comes out he should put it back in???

 

[77GlastronMT]

Re: Pulling drive Lower half

Thanks for the link but it's for a newer drive than mine, I have the MC1 I believe, at least my S/N is a lot lower than the ones shown. Mark, I know what you are saying !

 

[mikecrof]

Re: Pulling drive Lower half

...at least my S/N is a lot lower than the ones shown...

You want manual #2, serial #s 3780850-4890459. It is available at Boatinfo - Mercruiser Service Manual nr. 2 - 1974-1977 All Engines & Drives, but only to read online. Someone may be able to point you to a downloadable PDF of it at the boatfix.com site.

 

[mikecrof]

Re: Pulling drive Lower half

http://www.boatfix.com/merc/Servmanl/6/6covr3.pdf

Is there a listing of all the boatfix.com docs somewhere? I didn't see it in the sticky for mercruiser info where the link to boatinfo.no is.

 

[77GlastronMT]

Re: Pulling drive Lower half

Thanks everyone!!!