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  1. 9

    winterized, but exhaust manifold still cracked!

    I guess I'm just venting here, but I'm also curious what could have gone wrong. I've been winterizing the boat since I've owned it (8 years), this is the first time with a problem. I drain the block, manifolds, poke around in the manifold hole to make sure it's clear, disconnect the water...
  2. 9

    what is growing in my outdrive water passage?

    I don't know if this is really a technical question, but I'll post it here because it is outdrive related. I took my drive off to check alignment and what not, and found a funky clear / white / red goo growing inside the water passage. It has a gel-like consistency. I'm guessing it's some...
  3. 9

    spark plug picture after 10 hours...running lean?

    Hi everybody. My 5.0L OMC SX on a 19' Four Winns open bow is only hitting about 4k rpm at WOT. It should be closer to 4400 rpm. So I pulled the plugs to check compression (all are between 135 and 145 psi). The plugs were new at the beginning of the year, and I'm guessing the engine has about...
  4. 9

    trim angle?

    Hi, I have a used boat that has a 1994 OMC Cobra SX drive. I think the trim gauge is off, and I believe the sending unit can be adjusted on the drive. Here is what it currently looks like fully trimmed down (Pict3072s.jpg) And here is what it looks like when the trim gauge says it is trimmed...
  5. 9

    turn radio off when key is turned off...

    Currently my stereo is hooked up so that it only comes on when the key is in the 'on' position. My ignition switch only has an off, on, and start position. I've been told that it's not a good idea to run accessories for a long time with the key in the 'on' position but the engine not running...
  6. 9

    warm coil??

    Hi I was cleaning the boat today, and had the key in the 'on' position so I could listen to the Red Wings on the radio. I was out there for about an hour or so and noticed that the ignition coil was warm (I did not start the boat while I was out there). Is this something that is normal? The...
  7. 9

    trim motor breaker tripping...

    Hi, Any ideas why the 10 amp breaker located on my trim motor would be tripping? I have an OMC Cobra SX drive unit - 1994 vintage. Thanks in advance
  8. 9

    strange speed/prop issue

    Hi, I have a '94 Four Winns with 5.0L OMC. According to the paperwork that came with the boat, the max speed should be 45-48 mph @ 4600 rpm. The boat still has the stock 21" SS prop, but I'm seeing speeds of 42 mph @ 5,000 rpm. How is this possible? The speed was verified with GPS, but I...
  9. 9

    fixing gouge in gelcoat

    Hi, We bought a 1994 Four Winns last fall. I've done a lot of work over the winter (re-sealed, stripped, & painted the outdrive, repaired/replaced vinyl on some seats, built new subwoof box, etc). The boat is looking great with exception to a couple problem areas in the gelcoat. There is a...
  10. 9

    Idle speed on muffs...

    Hi, There's a sticker on my engine that says the idle speed in fwd gear should be 650 RPM. About what does that translate to on land using muffs? Should be higher on land, right? I'm asking because I can't get my 1994 5.0L OMC to idle lower than 950-1000 RPM on muffs. I haven't had a chance...
  11. 9

    Loctite 567 PST?

    Hi, I'm shimming my shift shoe (OMC / Volvo SX), and the manual calls for Loctite 567 PST on the threads of the adjustment bolt. It warns that if you don't seal this bolt properly, the drive won't be water tight. I can't find 567 anywhere local. Does anybody know of an equivalent? I've got...
  12. 9

    will smart tabs do anything for me?

    Hi all, I've got a 1994 Four Winns Horizon 180 with a Volvo/OMC 5.0 ltr I/O. This boat (and seems to me a lot of other Four Winns boats has this as well) has a 'notch' in the transom, which essentially lets the bottom of the hull extend out at least a foot from where the drive attaches to the...
  13. 9

    dual battery questions

    Hi, I bought a used boat that has 2 marine batteries and a 1-2-both-off switch. Battery 1 is a deep cycle-starting battery (looks like a wal-mart special), while battery 2 is a yellow-top Optima battery. Is there any advantage or strategy when it comes to utilizing the batteries and switch...
  14. 9

    drive slowly drifts down...

    Is it bad that my boat's drive slowly drifts down when on the trailer? I suppose there is an internal leak somewhere and that this might make it a little tricky to keep the boat trimmed properly (in my mind is seems that the prop thrust would want to make the drive go full-down). Are the...
  15. 9

    OK to use Merc drive oil in OMC SX??

    Hi, Is it ok to use the blue Merc drive oil in an OMC SX drive?
  16. 9

    changing input seal on upper case...

    Hi, Great forum, I've learned a lot by reading and searching posts for the last couple of months. I do have one question that I can't seem to find an answer for. I've got a Cobra SX drive and I'm replacing all the seals in my upper and lower case. I am having difficulty with the input seal on...
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