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  1. K

    Dual solex carbs

    You need to get a Volvo service manual and Be sure that the carburetor is assembled correctly. There is supposed to be a plate under the carburetor with a tab that protrudes into the air stream which helps atomize the idle mixture, if that plate is missing that could be your problem By adding...
  2. K

    Engine oil pan leak

    It also goes by the design of the boat. I think some boat builders lay the engine on the floor and see how tight they can get the engine surrounded. Most time I was able to pull the engine from the bellhousing.
  3. K

    Engine oil pan leak

    While you are at it plan on replacing the timing cover as it never was painted from the factory because the circulating pump was mounted. I must beg to differ with All dodge in reference to removing the out drive. It is easier to separate the engine at the flywheel housing. Hopefully the...
  4. K

    1974 140/1R outdrive tilt/trim

    You can get a empty ram tube and swap the internals. Sierra has them #18-2148 is a empty ram tube. #18-2291 is the seal/ O ring kit #18-2142 is a complete ram. Good luck.
  5. K

    1974 140/1R outdrive tilt/trim

    The reverse lock valve which keeps the drive from raising in reverse was either not adjusted or the drive was shifted in reverse is the cause. Later model Mercruisers incorporated a check ball in the pump which eliminated the shift linkage valve. You said you “hacked” the hydraulic system does...
  6. K

    Changing Chrysler i/b to Chevy i/b process

    RH rotation engines also have the pistons reversed on the rods. While the engine will run you will have idling problems and the pistons will not last long as the thrust sides are not on the load side.
  7. K

    1990 Mercruiser 5.7/v8 rusted exhaust manifold bolt

    The first thing I would do is to pull the engine since there is not enough room in the boat to remove the manifold and I bet that the oil pan and timing cover are on life support. One trick that works for me In that area is to get a hole saw that will fit closely over the rusted bolt without the...
  8. K

    No spark plug spark... 170 MC , 1985 Sea Ray

    The best thing that you can do is to obtain a Petronics ignition conversion. The condensers and other ignition parts are mostly made off shore and are not reliable.
  9. K

    No spark plug spark... 170 MC , 1985 Sea Ray

    Something else to check is the “bypass” circuit from the starter solenoid. Get a jumper wire and connect it from the + battery to the + side of the coil and spin the engine over. If you get a spark then the solenoid is the problem.
  10. K

    95 omc 5.8 runs cool without thermostat but eventually overheats with the thermostat

    Looks like you found the other main problem. It is really hard to diagnose one problem when there were actually 2. Hopefully the bolts will come out and the mating surface is not eroded away. That area must have really got hot at some point in the past. Let’s hope this is the final solution.
  11. K

    Volvo penta Mechanical fuel pump

    The pump‘s threaded ports are 1/4” npt .
  12. K

    Mercruiser 470 head and gasket inspection

    Looks like you lucked out, most times however those seals are the cause. Since there are no cam bearings in the block over tI’ve the cam “sinks” which is another cause of the seals leaking. Just keep a watch for coolant in the bilge.
  13. K

    Mercruiser 470 head and gasket inspection

    You better remove the timing cover and install a Speedy sleeve over the water pump impeller shaft along with the 2 seals. The “weep” hole in the bottom of the cover is plugged up. Most times when coolant enters the oil that is the reason especially if there is no blown out sections of the head...
  14. K

    Good Source for Trailer Axles?

    I also vote for the Speedi sleeves. I have had excellent results with them.
  15. K

    AQ125 Oil pan

    Amen to that brother. I also always sprayed the oil pan and timing cover with 3 M undercoat on every engine I replaced.
  16. K

    Tuliped valve causes

    Just one question, was the intake manifold re-used on the engine changes?
  17. K

    AQ125 Oil pan

    If I could not separate it at the flywheel housing all I ever did was pull the upper gear box like you said. I always pulled the upper if it was a V8 but always took a shot with separating at the flywheel housing on the 4 bangers. Quite often I encountered a situation where the heads of some...
  18. K

    AQ125 Oil pan

    Actually the Volvo AQ models do not need the drive removed to separate the engine from the flywheel housing. Hopefully the PDF shaft is not rusted to the flex plate coupler.
  19. K

    OMC 2.5L paired with OMC Sterndrive 800 Outdrive

    Have the owner take you for a demonstration ride. If it turns up to 4000 -4300 rpm leave it alone If you buy it.
  20. K

    OMC Bayliner Trophy ignition q’s

    Bayliner used a generic harness and it is not shielded. Follow the color of the wire from the ignition switch which should be purple in color To the rear of the boat. Inspect the condition fo the large pins in the main cannon plug where it plugs into the engine side of the harness.
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