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#1
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UGH!!!... Not a pretty problem.
 You have a clue to the problem with the fact that it's the first time you started it since the winter. Winter is hell on I/O's.. just a small amount of undrained water in the wrong spot can crack a block. Fortunately, you're not in that bad a position IMHO. Blocks are waaaaayyyy cheaper than outdrives, and if you can do the work yourself you should be able to find a good block and get by for under $500. But I have to agree with Macojoe... patch the hole, get a bracket and an outboard. You'll thank us later..
__________________
1987 V20 w/1987 150HP Yamaha on a Shoreland'r Trailer 1978 16.5 Airslot w/1996 120HP Force on a Four Winns trailer 1996 V21 w/1993 200HP Mercury on a Shoreline Trailer All towed by a 5.7L Hemi Durango. If God didn't have a purpose for us we wouldn't be here, so Live simply, Love generously, Care deeply, Speak kindly. (Leave the rest to God)  Silence, in the face of evil, is itself evil. Not to speak is to speak, not to act is to act. God will not hold us guiltless. 
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#2
04-14-2010, 12:03 PM
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So guys...it never even crossed my mind to go the bracket/outboard route. I'm intrigued. How is this accomplished / what type of bracket is necessary? The other obvious question is cost. For a V20 I'm guessing at least a 150hp outboard, correct?
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#4
04-14-2010, 12:13 PM
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You can get a good used 15t0 Merc for like $2000 or less!!
Fix the hole about $200 for material and your time, A usexd bracket $500 or less. Check ebay, crigslist, local boat yards for a take off. I had mine all set to go in a week end after I located all the parts Go to the gallery and look at my gallery shows pic's there of my redo, ask all the questions you want, I am not the only one that has done it!!
__________________
1986 V20 Old Fishermen never die, we just SMELL that way!!
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#5
04-14-2010, 12:18 PM
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__________________
  Bottom's up!!!
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#7
04-15-2010, 11:50 AM
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Some of these brackets look great. Macojoe - I am impressed with what you did.
My only thought is that it would cost me 2-3 grand to do this, and a rebuild on my motor now would cost that, maybe even less. Is it worth it? Are there any performance benefits to going the bracket/outboard route? The boat itself is in great shape for an '83 and i hate to get rid of it, but spending a) lots of time to redo it and b) lots of money to do it - are not what I was hoping for as we enter boating and fishing season.
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#8
04-15-2010, 12:21 PM
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Is this the 3.7 litre merc? They had real issues with the exhaust manifold rotting out--I have seen this several times with these motors. Start at the basics before going crazy. Pull the exhaust manifold and riser and inspect them--I will bet they are the source of your problem. Hopefully you did not hydraulic a rod. These are expensive engines to rebuild if it comes to that. A 150hp outboard will out run and out gun that 170ho I/O.
Good luck with the issue and your decision.
__________________
 88 V-20200 G2
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