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  1. SeanMcl

    How restrictive are stock type exhaust manifolds?

    Just wondering if the stock exhaust manifolds are as bad as they look, or if the water cooling and the corresponding temperature/volume drop of the exhaust significantly eases the back pressure. I have OMC log style heads, which are probably the worst of a bad situation, but I imagine the...
  2. SeanMcl

    Does 1974 OMC 190 have exhaust flapper valve?

    Does anyone one know if a 1974 OMC 190 with an 800 outdrive has exhaust flappers? My boat will not get to full WOT rpm, and I am steadily moving though the possible causes. I see no mention of them in the Seloc manual I have, but it seems most boats have them. And am I right in guessing they...
  3. SeanMcl

    Buy a new distributor or fix my old one?

    I have a 74 Gulfstream, OMC stringer, 190 HP 302 Ford. She runs well, has good power in the lower RPM range, but will not get above 3400-ish RPM at WOT. Prop is a 16 pitch. It revs up just fine out of gear, but not under load. After reading and following the excellent stickies on this very...
  4. SeanMcl

    1974 Gulfstream Sport Caribbean

    She's 19.6, with a OMC 190. Electric Shift, no trim. Everything is stock, save a few things like the radio, CB, etc. Hours are probably somewhere in the 400 range, it's been in the family since '82 and has seen light use. No hour meter so I guess I can't really say for sure. Sure is clean...
  5. SeanMcl

    Mothballed OMC 190 back on water - repair log

    Just a post for posterity. Hope this helps someone else out. The boat: 1974 Gulfstream, OMC 190 I/O. Has not been run in 6 years. Kept in indoor storage. The pregame warm up: Pulled the spark plugs, put some oil in there, turned motor over by hand to make sure it's moving OK. Pulled the...
  6. SeanMcl

    OMC 190 Stringer: upgrading the ignition

    I'm pretty ignorant about ignition systems, so if anyone has experience in this, I'd appreciate a whack from the clue stick. I've got a 1974 Gulfstream with a OMC 190 Sterndrive, Ford 302 motor. It has a Prestolite distributor in it, and since they are out of business I can't get new parts for...
  7. SeanMcl

    Cracks in my hull, NOW happiness in my heart. *Pics*

    I was out looking at my boat and noticed some cracks in the hull. They appear to be the "hairline" variety, but one of them I can feel with my fingernail when I scratch it. So after some searching on these forums, I went and took a closer look. Someone tell me how much trouble I am in and...
  8. SeanMcl

    Guess boats weight / wet bilge question

    I've got a 19 ft. 1974 Gulfstream with an OMC 190 outdrive / Ford 302. It's been in the family since 1984 (I was 14!), came to us with 50 hours on the meter, is bone stock and in great shape. I've lurked here and been reading old threads long enough to know the low regard the electric shift...
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