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  1. 3

    Drain Exhaust Manifolds Black Water?

    1988 Bayliner 350Gm Omc outdrive. Just drained the exhaust manifolds on my engine for winter, and the water was cold black, that drained out. I have replaced the exhaust manifolds and risers this summer and ran the boat 1 time in July and it has not been run since, that time. Is the cold black...
  2. 3

    Electronic Conversion Kit?

    I have a 1988 Bayliner with a 5.7 OMC engine. Have only had the boat out 2 times. It idles rought and lack power, have tried to adjust dist. advance and will not run, until the dist. is advanced to between 15 to 20 degree, before top dead center, not like it should be at 8 degrees before top...
  3. 3

    1988 Bayliner 5.7 omc cobra outdrive,engine dies when shifting?

    1988 Bayliner 5.7 OMC Cobra outdrive. When trying to shift from neutral, to forward or reverse the engine dies. Are the cables out of adjustment?
  4. 3

    Tach Dwell meter

    Can you use a Tach Dwell meter,when switching to the tach side to set RPM on a OMC 5.7 engine?
  5. 3

    automotive timing light?

    Can you use a automotive timing light on a 1988 omc 5.7 engine, to set the timing?
  6. 3

    Engine dies when going from neutral to forward or reverse

    1988 Bayliner 5.7 OMC Cobra outdrive. Changed carburetor, put cable linkage back on carb. Now engine dies when put in gear. Is there another adjustment I have missed?
  7. 3

    Over heating in driveway .

    1988 Bayliner 5.7 OMC. Just replaced impleller drive pump, new manifolds and risers, new water pump on engine, new stat. Heats up at idle,fast.?Pulled hose from stat housing, coming from outdrive. At idle no water coming out of hose but bring up rpm and water flows out. Rechecked all the parts...
  8. 3

    Should it have a 30 amp fuse?

    Have a 1988 Bayliner OMC 5.7. On the 3 solenoids, that are mounted to the outdrive shift bracket , that is mounted on the top of the intake manifold on the starboard side. Some previous owner has installed an inline fuse holder with a 30 amp. fuse in it on the back solenoid that faces the back...
  9. 3

    High Tack gasket cement or Permatex #2 non hardening?

    Replaceing exhaust manifolds and risers both new. On 1988 Bayliner OMC 5.7 engine. Should I use Hight Tack gasket cement or Permatex #2 non hardening? Gaskets are of the gray paper type. I know nothing goes on the exhaust gaskets, they go on dry. Thanks for the help.
  10. 3

    Hydrolocked 2 times?

    Have a 1988 5.7 OMC. It has aluminum heads and aluminum intake manifold. It has hydrolocked 2 times now. It happens when the engine has reached 180 to 190 degrees, and I have stopped the engine to cool down. As soon as its cooled down go to start it, its hydrolocked. The first time I had water...
  11. 3

    Electrolysis in aluminum heads?

    Hi, Have a 5.7 omc engine , that previous owner installed aluminum heads on. The boat is only used in fresh water. But when I took the heads off there is corrosion starting in the water passages. Is there any way to prevent futher corrosion? with some device? Thanks for the help.
  12. 3

    Aluminum or cast iron heads?

    Hi, On a 5.7 omc engine. Is it a bad idea to put aluminum heads on, or would cast iron be better? Thanks for the help.
  13. 3

    Engine block number 5.0 or 5.7 ?

    Hi Have a 1988 bayliner 2155. Bock number off pad right front of engine is V10271PA. Would it be a 5.0 or 5.7? Thanks for any help.
  14. 3

    aluminum heads? marine head gaskets or automotive?

    Hi, I have a 1988 Bayliner 2155 with a 5.7 OMC engine. Bought it last summer took it up to the lake and ran it for about 20 min. shut it off because the temp. got up to 180*. Then tried to start it back up after I let it cool down. Would not start back up . After getting back home, found out it...
  15. 3

    What temperature should it run at?

    Hi, I have a 1988 Bayliner 2155 with a OMC 350 . Just replaced exhaust manifolds risers and outdrive pump impler(all newParts). Running it in the driveway with water muffs and garden hose. It idles at temperature at 140 degrees. I put it in forward gear and run it up to 2500rpm to 3000rpm for...
  16. 3

    1988 Bayliner 5.7 OMC engine thermostat?

    Hi, I have a 1988 Bayliner 5.7 OMC engine. It has a Holley aluminum intake manifold. I took it apart to check the thermostat. But there was no thermostat. The original OMC thermostat will not fit in to the intake it would bottom out, and the thermostat housing will not mate to it. My question...
  17. 3

    1988 Bayliner OMC 5.7 engine exhaust flapper installation?

    Hi, Have a 1988 bayliner 5.7 engine. Installing new exhaust flappers. Anyone know of a good diagram on the web that would show which way the flappers go back in, the old ones are gone. Will be replaceing shafts and bushings also. Have seen some pictures but not to informative. The flapper part#...
  18. 3

    useing out drive for triming boat?

    I have a 1988 Bayliner 2155 with 5.7 and omc outdrive, can I use the outdrive up and down switch for triming the boat? Or will that harm any of the gears in the outdrive?
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