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  1. K

    2003 5.0 MPI stubborn overheat issue

    If there is a plastic section near the circulation pump on the port side check that there are no pieces in it. I found some in it on the Donzi I had. Most likely you have Bravoitis due to some of the sealing grommets on the incoming water passages The ultimate cure is to put a sea suction...
  2. K

    Mercruiser 350 MAG MPI missing only at 3000 rpms

    Did the new distributor come with a new rotor? From past experience when a rotor heats up they will go to ground at coming on plane and coming off as that is when he most load is on the ignition system. I once had a similar problem with the same engine in my Donzi. I finally cured it with the...
  3. K

    older carburetated mercruiser 5.7 hard start

    The 2 bolts that mount the solenoid could be 3/8” or phillips head or even 5/16”, hopefully not torx. The copper lead at the bottom of the solenoid going into the starter housing is 5/16“ hex. After the bolts and wires are remove rotate the solenoid 90* to remove it. Good luck.
  4. K

    What’s my engine

    460 Ford engine
  5. K

    Engine water flow issue

    It does happen, the guide tube should be longer since it is a blind fit.
  6. K

    Engine water flow issue

    There is an orifice in the thermostat housing that allows water to “by pass” the thermostat that may be clogged up with a rust buildup. If you have access to a blast cabinet that will clean it out otherwise just scrape it out as best you can.
  7. K

    older carburetated mercruiser 5.7 hard start

    When the key is turned and the starter is engaged there is no or very little voltage at the + side of the coil provided from the ignition switch, that is the purpose of the ”by pass” circuit on the starter solenoid to provide voltage at the coil. Just check the coil to make sure there is 12...
  8. K

    older carburetated mercruiser 5.7 hard start

    With a volt meter on the + side of the coil crank the engine over. You should read 11-12 volts. If it is much lower then the “by pass” circuit from the outer connector on the starter solenoid is the problem. To further prove out the problem run a jumper wire directly from the + battery to...
  9. K

    89. Mercruiser engine swap problems

    You forgot to mention which engine you are working on.
  10. K

    closed cooling

    I beg to differ about the drive pump being enough to cool a F/W conversion. Years ago I tried it, the V8 engine would overheat above 3k rpm. I know the drive pump will keep an inline engine with F/W cooling and maybe a V6 but I learned the hard way about V8s. I never got to try it with a...
  11. K

    Volvo Penta reverse lock mechanism?

    Just to be clear Volvo 280 drives came with power trim “hydraulic” and just power tilt for beaching. The tilt is not a power trim so which one was removed? As I said before the stainless button has to be free with no binding to move up and down. As far as the setting pin being in the last...
  12. K

    4.3 crankshaft/housing oil leak - next steps?

    After the engine is out look closely at the seal surface on the crankshaft. It may be grooved or there is a build up of rust which will cause pitting. Either way you can repair the surface with a Speedy Sleeve that will provide a smooth stainless surface. They come in many sizes and their web...
  13. K

    alpha 1 won't go into reverse

    When did this problem begin? I helped someone recently and it turned out it was a combination of the aluminum shift lever ,the stainless shaft that the lever attaches to and the shift slider.
  14. K

    alpha 1 won't go into reverse

    If you pull on the shift cable with the drive mounted does it go into reverse?
  15. K

    Volvo Penta reverse lock mechanism?

    Most transom angles are 14*. Did you change it? The stainless button that protrudes from the suspension fork has to move freely and not contact the bottom of the lift system. Which hole is the setting pin in ? I realize with the boat in the water it would be hard to check these suggestions.
  16. K

    alpha 1 won't go into reverse

    Does the receiver on the bottom of the bell housing have a good fit over the brass intermediate shaft in the upper housing? With someone holding slider and the cable disconnected in the boat how much can the cable pulled back and forth, there should not be any slack at that point. When you had...
  17. K

    2011 bayliner flight series

    A good chance the starter shaft is rusted preventing the gear to engage the flywheel. Remove the starter and clean the rust off the shaft. Then lubricate it.
  18. K

    alpha 1 won't go into reverse

    The stainless shift shafts hold up compared to the early steel ones. There is a tutorial on this site showing the procedure to adjust the cables. I have found a build up of corrosion restricting the slider from traveling enough in front of the bellhousing restricting reverse. With the lower...
  19. K

    Mercruiser 2.5 ticking sound

    A fuel pump with a broken return spring will make a noise like that, Try removing the pump and check the spring. Another source could be a worn valve guide.
  20. K

    best way to repair gimbal hing pin threads?

    I have repaired them with a Heli Coil. Not cheap but easy to install and cheaper than a new one. NAPA may have one or just get one from the internet.
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