[OMC-Boats] 4 bolt cap

If it ain't broke don't fix it. There is no law that says you can't go back
in if you make a mistake. If you are going to keep this sterndrive then you
might better get used to taking it apart. I am in the process of dismantling
a 4 bolt (120-155HP) that came on the 69 rogue (not the original drive for
that model). It has been sitting for over 25 years and the oil has
crystallized. It has been a real b#$%h! I thought I would see if it was
salvagable and put it up for grabs on the site or ebay or keep it as a
spare. My first venture into that model. I would feel and inspect the seals
and if they are pliable and not split or warped then I would reuse them. You
know you have to replace that nut lock thingie on the back drive gear if you
remove it- I don't have the schematic. I have the upper drive almost totally
apart. Good luck - it is not too complicated - just dirty!! Tom K.
----- Original Message -----
From: <omc-boats-request@...>
To: <omc-boats@...>
Sent: Monday, June 22, 2009 7:25 PM
Subject: OMC-Boats Digest, Vol 26, Issue 61

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> Today's Topics:
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> 1. Upper Gear Case Reseal (BLDFW)
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> ----------------------------------------------------------------------
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> Message: 1
> Date: Mon, 22 Jun 2009 15:58:58 -0700 (PDT)
> From: BLDFW <bldfw@...>
> Subject: [OMC-Boats] Upper Gear Case Reseal
> To: omc-boats@...
> Message-ID: <928981.42525.qm@...>
> Content-Type: text/plain; charset="iso-8859-1"
>
> (2nd attempt, email tooo big!)
> ?
> Hey guys,
>
> I'm back working on resealing my upper gear case on my 4 bolt outdrive.?
> The goal is to check the condition of the gears and various parts (they
> all look excellent!) but most especially to replace those seals where
> water intrusion is most likely to occur.? Thus far, I have removed the
> impeller setup and shaft as well as the ball gear shaft (will replace that
> too since I have it out)
>
> I have attached the applicable schematics from the '65 Parts Catalog.? I'm
> down to the Bearing Housing (Ref #45 on the schematic) and am wondering if
> I need to remove and reseal that particular component at all.? I see an
> o-ring at the top (ref #50) and several oil seals which just happen to be
> the most expensive seals to replace ($110 for 3 oil seals).? I'm not
> seeing any source of oil leaks in the shaft so I'm wondering if that would
> be going too far.?
>
> Has anyone gone this far when attempting to reseal their outdrive?? I want
> to do it right but ecomonics is suggesting I don't get carried away.
>
> Thoughts?
>
> -Bill
> Dallas, TX
> 1970 Evinrude Explorer - 155 Buick V6 - OMC Sterndrive
> http://www.photobucket.com/evinrude_explorer
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> End of OMC-Boats Digest, Vol 26, Issue 61
> *****************************************
Received on Monday, 22 June 2009