1978 IMP X-250 question - what outdrives?

Discussion in 'Propulsion' started by Tony S, Oct 28, 2011.

  1. Tony S
    Joined: Oct 2011
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    Location: Cottonwood, Ca

    Tony S New Member

    Hello;

    A new member here and just learning about IMP boats.
    I just purchased a 1978 IMP Marine X-250 and have a couple of questions. The boat has twin 350 Merc Crusier chevrolet engins. The boat is missing the out drives. Can some one tell me what out drives it should have, Apollo or Bravo?
    Also, are the out drives standard rotation, counter rotation or would one of the engines be counter rotation?

    Thank you;

    Tony
     
  2. IMP-ish
    Joined: Jan 2011
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    IMP-ish powerboater

    Are the mercruiser engines still in the boat?
    Are the existing transom assemblies workable and if so, can you post a photo.
    Bravos didn't exist in 78 and they didn't have counter rotation lower unit alpha or merc1s back then.
     
  3. PAR
    Joined: Nov 2003
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    PAR Yacht Designer/Builder

    In 1978 they would have had "later model type 1" drives. The Alpha wasn't available until '85, the Bravo in '88. Without the upper gear housing available you'd have difficulty identifying which unit they employed, though the controls and transom plate (if still there) might offer some clues.
     
  4. Tony S
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    Tony S New Member

    Yes, the engines are still in the boat and the transom assemblies are working. I don't know how to post a photo, I have looked the site over and could not locate information on how to post photos.
     
  5. Boat Design Net Moderator
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    Boat Design Net Moderator Moderator

    If you're using the Quick Reply, click 'Go Advanced' (or use the blue "Post Reply" button instead) and then click 'Manage Attachments.' Make sure to submit the post after you choose and upload the photos. (Longer FAQ)
     
  6. Tony S
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    Tony S New Member

    I think I got the photo to download.

    Than you for the help.
     

    Attached Files:

  7. jmc1805
    Joined: Jan 2007
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    jmc1805 Junior Member

    the outdrives are probably mercuruiser "TRS" or "TR"
    I have a 1978 X250 with a single 454 and TRS outdrive
     

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  8. jmc1805
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    jmc1805 Junior Member

    I have the orginal oweners manual for this boat. if you would like a copy. email me at jmc1805@spec-sev.com
    John
     

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  9. Tony S
    Joined: Oct 2011
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    Location: Cottonwood, Ca

    Tony S New Member

    John;

    Tried to email you but for some reason it didn't go thru. Yes, I would appreciate a copy.
    My email address is:

    tonyz06@sbcglobal.net

    Thanks again and please let me know off any expense.

    Tony
     
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