Search results

  1. D

    Adding fat-sacs to an '89 Sunbird w/ 3.0 OMC

    Hello all, I own an '89 Sunbird with the OMC 3.0 currently running a 13x19 3-blade aluminum prop; top speed: 35mph, WOT rpm: 4200. I'm going to change over to 4-blade props for better performance with a load. I am thinking about a 17p or 18p for general cruising; i definitely need the better...
  2. D

    coupler issues + head question

    '89 omc 3.0 My coupler has loosened twice now. .. it took me two engine pulls to realize it was the coupler coming loose. I'm assuming the alignment was off both times. ..So my questions are: 1. Could I use bolts instead of studs to tighten the coupler to the flywheel 2. Would a mercruiser...
  3. D

    For those of you rebuilding a 3.0...

    Just an FYI... Over the winter I performed a cheap rebuild of my OMC 3.0 since I had to take it out due to the rear freeze plug leaking. Long story short, I pulled dished pistons out of the motor and I accidentally ordered flat top pistons when I ordered the rebuild kit from ebay; my machinist...
  4. D

    where is this water coming from?!?!?

    i'm chasing a leak with no luck. the boat is a 1989 sunbird corsica that begins leaking into the bilge and ski-well after being in the water for a while...mainly while parked on the beach. i can see it coming (pouring) in from a tube that opens into the bilge, but i have no idea where the...
  5. D

    New prop for 1989 Sunbird Corsica 195, 19', 3.0 OMC

    hello all, this is my first post although i've been reading from the sidelines for quite a while... i have a 19', 1990 Sunbird Corsica 195 with an OMC 3.0. My problem is the top speed is 30 MPH(using a gps), at WOT on smooth water and two people. I'd just like to get where i'm going a little...
Top