Inboard/Outboards Vs Outboards

Discussion in 'Boats, Motors, Trailers and Towing Rigs Forum' started by Stizzla, Apr 26, 2020.

  1. Stizzla

    Stizzla Crew Member

    There seems to be a lot of people not approving on a boat I was looking at. It has a near new 2018 4.3 mercruiser with 50 hours.

    besides a doghouse at the back, what disadvantages to they have?

    who prefers inboards and why? Who prefers outboards and why?

    Again... Let’s be nice.
  2. RiverBoy

    RiverBoy Well-Known Member

    The major negative for inboards is maintenance. i have never owned in an on-board as my friends who did all steered me away. Fresh water cooling is critical in the chuck. you don’t want to be cooling your block, water lines pumps, intakes etc with salt water. Blower motor thing kinda sucks. you have to run blower motor for a specified amount of time. that could be an issue for me if you need to get on your power right away.
    Winterization is super critical on an on-board and making sure no water exists. my bro in law had to pull his motor twice in very short order due to improper winterization. one resulted in a cracked block, the other was plugs

    I dunno. just seems like a lot of screwing around. i do like the fact it’s “ like working on a car” if something does go wrong. starter gives up the ghost? unbolt it and go get another one. same as plugs, coils etc.

    if anything ever goes wrong with my Etec i wouldn’t have a clue how to fix it. it’s straight to the mechanic
    agentaqua and Stizzla like this.
  3. scott craven

    scott craven Well-Known Member

    Outboards for me, mainly for ease of maintenance and proven reliability on the newer models.
    Stizzla likes this.
  4. Olde School

    Olde School Well-Known Member

    Outboards are cooled with raw water, no?
    jim morrow likes this.
  5. Captain PartyMarty

    Captain PartyMarty Well-Known Member

    One issue for me is the bellows on the leg and the giant hole in the transom I just can’t trust it! If that bellows has leak or you rip that leg off on a log down she goes
  6. pescador

    pescador Well-Known Member

    Outboards run forever.....then blow up real good. In/Out boards run and break, run and break run and blow up....
    chromatose007 likes this.
  7. ab1752

    ab1752 Well-Known Member

    The list goes on and on and on...first safety from blowing up due to ignition being so close to fuel. Cooling systems are an expensive pain in the ass although you do get the opportunity to have heat which is nice for the half hour of the year you need it. U joints suck, engine alignment sucks, clunky shifting although in my experience having owned both merccruiser and volvo, the nod goes to volvo but they're super proud of parts.

    It totally sucks for fishing with an IO if you have a remote control kicker. You can use a panther style remote steering or an ez steer like I do and hang your ass off the swim grid in lumpy seas to connect the bar, at best you get soaked, worst you're in the water. Oh and the quick connects love to seize at the best possible time too so keep a set of 1/4" spares around to .

    Maintenance on an IO is super fun, particularly if the asshole who built the deck left you less than 4" around the manifold sides.

    The number one reason to go OB? Who in the eff decided it is a really good idea to cut an 8" hole in your transom under the waterline?

    And ya, my boat is powered by a VP 320 gxi DP and its days are numbered if I keep this boat for sure.
    Last edited: Apr 26, 2020
  8. Captain PartyMarty

    Captain PartyMarty Well-Known Member

    Maintaining is also a shit show. Changing oil is such a pain in the ass with the whole pump thing.
    Stizzla likes this.
  9. ab1752

    ab1752 Well-Known Member

    In our waters with all the shit in them IOs should be banned. At least if you smoke a log with your outboard you're not gonna sink...that happens to me I am in deep shit so I stay below 2o to 22 knots all the time.
    Stizzla likes this.
  10. Lucky Streak

    Lucky Streak Active Member

    My main complaint on inboards was access. Everything is mounted down low in the bilge area, which was very difficult to access or let alone see!
    agentaqua likes this.
  11. Ripperoflips

    Ripperoflips Active Member

    The one main thing for me is I have yet to see or hear of a outboard blowing up a boat, where conversely I know of at least 6 inboards that have destroyed the boat that it was house in. Big fan of OB's
    Stizzla likes this.
  12. ab1752

    ab1752 Well-Known Member

    Im sending my boat to your place in the fall to get PartiedMartied...
    Last edited: Apr 26, 2020
  13. Aces

    Aces Well-Known Member

    The outboards I use have a ss water cooling system
    Robert Snyder and Stizzla like this.
  14. ab1752

    ab1752 Well-Known Member

    Pretty easy to flush an outboard with fresh water at the docks. I think most modern outboards have a flush attachments in situ
    Stizzla likes this.
  15. Aquaholic

    Aquaholic Well-Known Member

    The boat you looked at, that same hull with outboard config has an engine well that protrudes into the cockpit a bit, taking up valuable room. The I/O doghouse doesn't stick forward all that much more but it is definitely wider and higher so the space left is less than the outboard version. On a smaller boat like this you would notice it, especially with 2 fish on and scrambling to bring up the downriggers, grab a net etc.

    Before outboards on a sporty were the rage, buying an I/O was the preferred way to go. Quieter, cleaner, no 2 stroke smell if you trolled with it, better trade in or resale value.

    I don't agree with the point about maintenance being harder on an I/O. Oil changes with the right equipment and tune ups are easy on an automotive engine in a boat.
    InterMechanico and Stizzla like this.
  16. ab1752

    ab1752 Well-Known Member

    Oil changes are literally the only thing that's easy on my boat, even then it's still a bit sloppy. Again it all depends on how much access around the engine the builder provided. Billy didn't give us much room at all, there's a deep 3/8 socket rolling around my bilge that I still haven't been able to retrieve.

    Steering systems with an IO are a pita too, the plastic volvo alligator clamps fail over time and it's not easy to service the system.

    After 5 years with this setup I would absolutely not replace the volvo if it blew up. I really dig the boat though so a pod sounds good to me...
    Stizzla likes this.
  17. SpringVelocity

    SpringVelocity Well-Known Member

    Ok my opinion and I owned both. I fix a lot of my own things on my motors. Presently have a Mercruiser/Alpha 3.0L. Probably the cheapest motor I have run.

    There isn't anything wrong with the mercruiser 4.3, and if has Alpha leg they are easy to work on. Your a shore fishermen I assume, so truthfully this isn't something going to offshore bank every day. Inboards are great for people that are mechanically inclined. Also since you dealing with a car type engine it's easy to get parts, and doesn't break the bank. Outboards are great for people that aren't. Honest opinion. You can abuse a lot of outboards, and it will still run. While the inboard not as forgiving.

    The maintenance with my inboard is pretty much identically to outboards I owned. Where people get into trouble is they start to not do maintenance, and the inboards aren't as forgiving as outboard.

    My boat right now is Mailbu 185. For the cost of podding outboard I will never get that money back. Made that decision last year. This motor I have has 2400 hrs on it. Can't say that for a lot of outboards I owned. But I don't run it hard maybe 3200RPM max at just cruising speed 20knots or so. never ever push it like my outboards I have had. The advantage is I tend to use less gas.

    Just my thoughts I would say either have advantages and disadvantages.

    50hrs on main engine is pretty much new. When your looking look at tell tail signs like leg oil, and engine oil. Condition of motor etc. You want to ask when the manifolds were done (very important). Pay extreme attention to the freshwater cooling system, and it's condition.
    Last edited: Apr 26, 2020
    Foxsea, rockdog, agentaqua and 2 others like this.
  18. Stizzla

    Stizzla Crew Member

    Great responses y’all! Really glad I asked before I jumped into the deep end.
    I think I will stick with the outboard, the numbers on that boat were appealing (brand new 220hp on a mint 19’ hull) and if anyone wonders the seller WILL come down. Not quite low enough to my lowball offer but still quite flexible imo.
  19. SpringVelocity

    SpringVelocity Well-Known Member

  20. ab1752

    ab1752 Well-Known Member

    The older merc 4.3s had a tenancy to hydro lock due to a design issue with the exhaust flapper, I had a searay 185 back in the day that had its engine replaced with 130 hours because of this. The Alpha would shred its coupler too, also happened to ours, if you hammered the throttle all the time. That's an engine out service too, I'm sure these issues are well in the past.

    I think Mercury should be sending SpringVelocity a free IO package for achieving 2400 hours that's unreal, congrats!! I would never imagine mine could go that distance...nice work.
    Aces and Stizzla like this.

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