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  1. Horigan

    Testing my temp gauge

    The alarm is likely driven by a separate oil pressure switch, not the sensor that feeds the gauge.
  2. Horigan

    Ford 302 engine oil dipstick - 1995 OMC Cobra, Ford 302, VolvoSX

    I may put what the manual says and monitor oil pressure to ensure I’m not getting oil aeration. It’s been running fine for years with my current approach.
  3. Horigan

    How do you screw into fiberglass/gelcoat without chipping?

    You need the bevel from a counter sink bit to be deep enough so the OD of the screw threads initially contacts fiberglass and not the gel coat above it.
  4. Horigan

    Ford 302 engine oil dipstick - 1995 OMC Cobra, Ford 302, VolvoSX

    That’s the same dipstick part number for my 302, though I don’t have the dimples. I believe my oil tube goes to the port side of the oil pan. For oil I use Rotella T4 15w-40.
  5. Horigan

    Ford 302 engine oil dipstick - 1995 OMC Cobra, Ford 302, VolvoSX

    I've been going through the exact same thing on my '95 302. I don't recall the dimples/indents you're referencing. Will check that. You'll be able to confirm you have the right dip stick since the part number is on it. I've just been putting in a quart less that listed, and it's been running...
  6. Horigan

    2004 Sea Ray 260 Sundancer sudden leak

    Or get an endoscope camera, with light, for your phone on Amazon.
  7. Horigan

    Does my GL-5 75W90 need to be official?

    I’ve read that VP oil does better with water contamination and is better for shifting…
  8. Horigan

    Oil Pressure Sender failure modes?

    A pressure switch is very different than a pressure sensor/sender. A pressure sender has a strain gauge, piezo sensor, or some other means of measuring strain on a diaphragm to convert into an electrical resistance. A switch just opens or closes a set of contacts.
  9. Horigan

    SX-A Gear Oil Screw

    Mine is difficult to remove every year. Finally bought a hex socket version screw that I’ll install this fall.
  10. Horigan

    Compression test

    Also have all the spark plugs out when doing a compression test.
  11. Horigan

    Compression test

    A simple test is to squirt oil in the cylinders and repeat the compression test. If the pressure is higher, you have bad piston rings.
  12. Horigan

    Volvo/OMC Raw Water Pump Repair/Replacement

    I wouldn’t want the paint to flake off and get into my cooling system, like on fuel pumps. ;) My boat’s an OMC, so I’m good on natural brass, (bronze?).
  13. Horigan

    VP SX drive low oil but no sign of leak

    Keep adding oil. Make sure the drive is level. I can’t remember the value, but I think it’s more than 2.1L.
  14. Horigan

    Volvo/OMC Raw Water Pump Repair/Replacement

    Great input. Thanks!
  15. Horigan

    Volvo/OMC Raw Water Pump Repair/Replacement

    Bingo! Found one for $230. Thanks.
  16. Horigan

    Volvo/OMC Raw Water Pump Repair/Replacement

    Thanks. Surprisingly, more expensive than OE for this model.
  17. Horigan

    Volvo/OMC Raw Water Pump Repair/Replacement

    Good point about the age and wear. Sadly, it doesn't appear that Johnson makes my style pump, shown below.
  18. Horigan

    Volvo/OMC Raw Water Pump Repair/Replacement

    My '95 OMC/Volvo raw water pump (3858847) is leaking a bit from the shaft seal. I can address via an aftermarket seal kit, aftermarket water pump, or an OE water pump. What's the team's consensus on the best way to address? Are the seal kits sufficient quality for a good repair?
  19. Horigan

    New Winch or Winch Strap?

    I don't think a 20V drill would have enough torque. You're a great candidate for an electric winch.
  20. Horigan

    Volvo Penta Trim Cylinder issue

    Yep. Blow air into the left cylinder lines and it should come out the right cylinder lines.
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