Sterndrive change-out

[BobFifty]

I recently purchased a used sterndrive to swap with my current poorly sealed one. I have removed and installed a lower unit before but the one I purchased has been seperated. So the upper and lower sections need to be put back together (I bought this locally and the two are matching). I have not done this before and while it does not look difficult I do have a few questions,<br /><br />1. Is there a gasket between the upper and lower surfaces (besides the oil seal).<br />2. Any seals I should replace with it apart.<br /><br />Thanks for your help.<br />Bob Fifty

 

[tommays]

Re: Sterndrive change-out

bob<br /><br />thers a lot of different drives most dont have a seal between them BUT there is a least one old merc type that does so what you have is needed for and answere<br /><br />the drive would need to pressure tested to see if any seals are leaking<br /><br />tommays

 

[BobFifty]

Re: Sterndrive change-out

Oops, It would probably help if I mentioned the type of drive. It is a 1980 pre alpha 1.5 ratio 898.<br /><br />Bob Fifty

 

[gspig]

Re: Sterndrive change-out

As far as I know, the only seal is a quad lip o-ring for the gear lube passage and maybe a pair of o-rings on the prop drive shaft. No gasket between the upper and lower housing.

 

[Darrendude]

Re: Sterndrive change-out

I would put in a new water pump impeller while its apart.

 

[Darrendude]

Re: Sterndrive change-out

Also inspect the shift shaft bushing, I had to replace that on my outdrive. and make sure it has the new stainless steel shift shaft, the original ones corrode I here.