Logo
FULL SITE MENU

Search results

  1. C

    93' OMC 5.0 EFI - Struggling with hot starts, sagging drive and overheating at idle.

    Fixed the power steering leak, it was frayed hose at the power steering cooler. Found it using UV dye. Cut about a quarter inch off and no leak since. Fixed the overheating issue at idle. When I split the upper and lower units, the copper tube grommets were dried out and split. Replaced those...
  2. C

    93' OMC 5.0 EFI - Struggling with hot starts, sagging drive and overheating at idle.

    I'll have a look into this, thanks!
  3. C

    93' OMC 5.0 EFI - Struggling with hot starts, sagging drive and overheating at idle.

    Sierra kit with housing and plates for the impeller. I'll look to see if it's leaking at all next time I run it on muffs, didnt think of that but that oring was a bit of a pain. The overheating issue doesn't seem to happen at all on plane or even moving a few knots at 12-1300 rpm - good temps...
  4. C

    93' OMC 5.0 EFI - Struggling with hot starts, sagging drive and overheating at idle.

    I replaced the impeller and housing. Also cleaned out the power steering cooler and there was a few small chunks of impeller but nothing crazy. Still have the issue. Will rebuild cylinders and hope that fixes the sagging, parts are on order. Compression was around 140-150 per cylinder if I...
  5. C

    93' OMC 5.0 EFI - Struggling with hot starts, sagging drive and overheating at idle.

    Hey everyone, Just picked up a 1993 Four Winns Horizon 210 with the OMC 5.0 EFI. Overall the boat looks solid and the motor runs strong, but I’m chasing a couple issues and could use some advice. I’ve already replaced the thermostat and anti-siphon valve, and compression is good across all...
Back
Top