Logo
Results 1 to 5 of 5

Thread: 30 liter

  1. #1
    Join Date
    Jun 2009
    Location
    Amherst, Ohio, USA
    Posts
    9

    Default "I have a cracked block and I

    "I have a cracked block and I am looking for a 3.0 1988 block. Or can i inter change this with something compatible? other than the 3.0? this is on a bayline, capri 1950 series, 18' king cobra outer drive. thanks"

  2. #2
    Join Date
    Mar 2009
    Location
    Lowell, MA
    Posts
    1,217

    Default "There were a few different 3.

    "There were a few different 3.0 engines used, all bolt up the same but may use different flywheels.

    Your 88 engine block is the same through 1990, not sure how far back it could go, could be to 86 or even 83.

    Most inline engines like yours (depending on where the crack is) can be fixed with JB Weld and used for many many more years without problem.

    The Mercruiser engines are the same but doubt the same years fit. Again mostly can be told by the flywheel details and or if your engine has a "one peice rear main seal" or not."

  3. #3
    Join Date
    Jun 2009
    Location
    Amherst, Ohio, USA
    Posts
    9

    Default the crack is right below the h

    the crack is right below the head cause I put a new water pump in it yesterday on upper unit. then I ran it with muffs and garden hose and seen it leaking then I had taken off the manifold to see where it was leaking. thanks for your input very much.

  4. #4
    Join Date
    Mar 2009
    Location
    Lowell, MA
    Posts
    1,217

    Default "I've seen where people us

    "I've seen where people used a Dremel type tool to open the crack a little more nad just a bit to be able to get some JB Weld in there and drill the ends of the crack, to stop if from going further. You would want at least 1 inch of JB Weld on either side of the crack, need to push some in to give it some bite. You'll only need to buy a new intake/exhaust gasket and some JB Weld, let it cure for 48-72 hours in about 70-80 degrees and it should be good.

    See when V6's and V8's crack they usually crack inside the V to which then lets water get into the oil ( not good ). Its RARE but does happen that a really bad hard freeze can crack through a cylinder, but it's usually hair line and doesn't cause much problems. Once that happens you would have to have that cylinder bored then sleeved. Still cheaper than a new block.

    The only other concern is cracking the heads, which does happen from time to time.

    Search JB Weld in the posts, you'll find your not alone."

  5. #5
    Join Date
    Jun 2009
    Location
    Amherst, Ohio, USA
    Posts
    9

    Default "<[img]"http://www.marineengin

    ""

Similar Threads

  1. Boring GM / Chevy 2.5 Liter to Replace 3.0 Liter Block
    By Volvo351 in forum Mercruiser Sterndrive Forum
    Replies: 14
    Last Post: 02-11-2011, 02:43 PM
  2. cam specs 1987 2.3 liter
    By wmlaks in forum OMC Sterndrive and Inboard Forum
    Replies: 3
    Last Post: 07-08-2010, 06:35 AM
  3. 485 vs new 3 liter
    By iceknight in forum Mercruiser Sterndrive Archive
    Replies: 6
    Last Post: 08-16-2009, 03:01 AM
  4. 79 30 LITER OMC
    By dnoble in forum OMC Sterndrive and Inboard Forum
    Replies: 16
    Last Post: 08-11-2009, 04:33 PM
  5. 05 30 liter
    By Doug Keller in forum Mercruiser Sterndrive Archive
    Replies: 0
    Last Post: 12-31-1969, 08:00 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •