replacing a 305 with a 350 engine

Discussion in 'Gas Engines' started by mrostkow, Dec 5, 2017.

  1. mrostkow
    Joined: Dec 2017
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    Location: Lincoln Park, MI

    mrostkow Junior Member

    So if I google the number on the upper housing or the outdrive I can find out if it is a n Alpha I, II, or III?
     
  2. Angélique
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    Angélique aka Angel (only by name)

    Yes, you can do that, and you can also post here what you find, as it might be a lead to further info from someone, and maybe - PAR - Gonzo - Barry - know from the pictures already.
     
    Last edited: Dec 6, 2017
  3. mrostkow
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    mrostkow Junior Member

    Yes, I will do that - however I really was hoping one of you more experienced fellas could identify it bythe pic...;-)
     
  4. Angélique
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    Angélique aka Angel (only by name)

    I'll consider it very well possible that the fellas I've earlier mentioned are able to identify it by the pics, just wait for them to show up, and what they have to say . . :)

    Just the age alone might exclude some types already, I didn't dig into that, the others might know from the top of their head . . :cool:
     
  5. gonzo
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    gonzo Senior Member

    It's an Alpha.
     
  6. Angélique
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    Angélique aka Angel (only by name)

    Now we like to know the № I, II, III thing Gonzo . . :)
     
  7. PAR
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    PAR Yacht Designer/Builder

    That is an Alpha 1, non- second gen. drive leg.
     
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  8. mrostkow
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    mrostkow Junior Member

    Wow you guys are great! thanks!
     
  9. PAR
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    PAR Yacht Designer/Builder

    Please email my other half and tell her . . .

    The easy trick is the trim cylinders. If they're bolted to the leg, it's a early Alpha 1 (gen 1), but if it has "C" clips, it's the Alpha 1 (gen. 2). Gen. 1 drives also have a dip stick in the cap, but gen. 2's have a hose going back to the gear lube monitoring system.
     
  10. gonzo
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    gonzo Senior Member

    The first type was simply called "Alpha". Later on, when the Alpha II came out, people started referring to it as Alpha 1.
     
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  11. Angélique
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    Angélique aka Angel (only by name)

    Thanks for the info Gonzo, didn't know that about the Alpha, although it occurs more often that the market comes up with an affix to identify older types, which from the factory go without, like in the below example . . . :)
     
    Last edited: Dec 7, 2017
  12. Carolina Fishing
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    Carolina Fishing New Member

    Ha. I never knew Gen 1 drives had a dip stick on the cap. Mine had so much paint on it you couldn't see it!
     
  13. Carolina Fishing
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    Carolina Fishing New Member

    There is no Alpha III.

    Before "Alpha" there was MC-1.

    Another way to tell Gen 1 or Gen 2 apart is to take a photo from the side.

    Gen 2 has the back of the skeg at an angle. On Gen 1 it is straight.
     

  14. Barry
    Joined: Mar 2002
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    Barry Senior Member

    According to the Merc site, there is only the Alpha One series drives (WITHIN THE ALPHA SERIES)
    Alpha One ( without a Gen notation) from 83- 90
    Alpha One GenII from 91 and up to a cut off at 1997
    Alpha One Gen II from 1998 and up

    Mercruiser Sterndrives | Mercruiser Alpha One | Stern Drive http://www.sterndriveconnections.com/mercury_stern_drive.php
    Above link a supplier for outdrives


    You tube of the difference

    EzPartsWeb https://public-mercurymarine.sysonline.com/Default.aspx?sysname=NorthAmericacompany=GuestNA_KEY=NA_KEY_VALUElangIF=englangDB=eng
    Mercury marine, OEM parts catalog.
     
    Last edited: Dec 10, 2017
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