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  1. Don S

    Shift Bracket

    Re: Shift Bracket The threaded tube does have a jam nut on it so it doesn't come out of the end of the cable. Not sure about your picture with 3 a's and 2 b's it's hard to say what you are referring to.
  2. Don S

    overheating issue

    Re: overheating issue Prestolite is what Merc used in the 90-94 3.0L engines with conventional ignition. The early models used the Delco distributor. You need to get the dwell set first, then the timing.
  3. Don S

    overheating issue

    Re: overheating issue Being a 1990 engine, it could be either an Alpha I or an Alpha I Gen II. Serial numbers of drive and engine can be found shown below. You earlier stated you were "playing with" the timing. What ignition system do you have? If the EST, did you put it in base timing...
  4. Don S

    Overheating Cause Oil Leak?

    Re: Overheating Cause Oil Leak? You do have an oil pressure sender there.
  5. Don S

    Clicking while starting. Possible bad batteries

    Re: Clicking while starting. Possible bad batteries I have no way of knowing that, which is why I asked. Might try with a different meter. I can't see 13.5 happening. Then have a look at the troubleshooting chart below.
  6. Don S

    Motor mounting hardware for reinstallation-what, and in what order?

    Re: Motor mounting hardware for reinstallation-what, and in what order? Those are not fluid mounts, and I see nothing wrong with the one in the picture. Those mounts seldom break, and if not broken, I sure wouldn't change them. Have a look at this Page from the manual.
  7. Don S

    2008 Mercruiser 350 trouble starting after 6 months storage

    Re: 2008 Mercruiser 350 trouble starting after 6 months storage First thing you need to do next time you are at the boat is to get the engine serial number. There is no way to look things up by year. Merc has it all listed as 1998 and above. Also need to know what drive you have. Next you...
  8. Don S

    bad starter 5.0 Mercruiser

    Re: bad starter 5.0 Mercruiser This should cover it.
  9. Don S

    wiring a battery switch...

    Re: wiring a battery switch... You have to hook all outgoing circuits to the common terminal. If you hook them to the battery terminal they are no longer switched.
  10. Don S

    mercruiser auxiliary trim switch

    Re: mercruiser auxiliary trim switch Google this part number. 87-815200A02 It plugs into your existing trim harness. Here is an old thread where someone installed one on their boat. http://forums.iboats.com/non-repair-i-o-inboards/remote-transom-mounted-trim-switch-539023.html Here's a...
  11. Don S

    Warning beep every other second?

    Re: Warning beep every other second? Below is a chart with the different types of warning horn sounds for your engine. To help explain it, CDS stands for Computer Diagnostic System. In the 2 beeps per minute section, there are about 25 to 30 things that can cause the alarm. and without the...
  12. Don S

    Motor mounting hardware for reinstallation-what, and in what order?

    Re: Motor mounting hardware for reinstallation-what, and in what order? Those are the rear mounts, not the front mounts.
  13. Don S

    Altitude Question with a carb motor

    Re: Altitude Question with a carb motor You should be good up to 5000 ft. Below is the chart (NOTE: they left a 0 off in the 5000 ft and below line)
  14. Don S

    Need to wire switches for water pumps

    Re: Need to wire switches for water pumps I'm just going to post these wiring diagrams. Perhaps it will show you how a boats electrical system should be wired. In the example, you could take out any one or two of the lights and replace it with a pump of some kind. Wire sizes fuse sizes...
  15. Don S

    Another engine alignment thread...

    Re: Another engine alignment thread... If you moved the gimbal bearing, it may need to be centered as well. The inner portion of the gimbal bearing "Gimbals" inside the outer race. Here is a picture of a couple gimbal bearing "Gimbaled" inside the outer race.
  16. Don S

    Throttle Button

    Re: Throttle Button That will be a Merc only part, you won't find it in aftermarket. The Merc part number is 88149. Item 20 below.
  17. Don S

    Serial number wonder what I have.

    Re: Serial number wonder what I have. I just rechecked, and your serial number doesn't actually say it was a 5.7, the 260 could also be a 5.0L engine with a 4bbl. Would have to check the GM block numbers to find out, or this bulletin with some other Merc numbers.
  18. Don S

    fuel pump issue?

    Re: fuel pump issue? There was two different fuel systems on that engine, and why I asked for a serial number. the change from the VST was at 0K147350. Here is from the manual on testing the fuel pump system.
  19. Don S

    Tachometer Install - How to Power the Lights on the Tach and other guages

    Re: Tachometer Install - How to Power the Lights on the Tach and other guages You have to furnish the blue wire (Common wire color for the instrument lights). You just plug your blue wire to that spade terminal next to the bulb and make sure you have a ground wire hooked to the gauge ground...
  20. Don S

    problem getting boat ready for season

    Re: problem getting boat ready for season +1 on the Trickle charger not working if the battery was dead. Assuming the battery was charged, and the cables are tight, try these tests.
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