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  1. SSTKO81

    Is an old drive worth the repairs

    1981 SeaSprite 140 with the original (I believe) pre-alpha still hanging on the transom. Pulled it yesterday to replace a damaged lower shift cable and the whole drive bellows was full of gear oil. My immediate assumption is that the upper driveshaft seal finally gave up. It looks like I can...
  2. SSTKO81

    Electronic ignition Delco Est

    Good afternoon boys and girls! The time has come to replace my distributor (worn bushings) and rather than just replace ive decided to upgrade. I purchased a gently used electronic distributor that I thought would come with the wiring harness and coil, but it did not... No biggie, I can make my...
  3. SSTKO81

    140 won’t idle correctly

    Good morning! I’ve been running down ignition gremlins and now that I’ve got this licked it seems there could be a fuel problem. (Long story made longer) this engine had to have a new crank and #2 piston due to spinning a bearing.So it’s been blown Apart and back together, timing set to 6* and...
  4. SSTKO81

    timing bouncing around

    1981 Mercruiser 140, timing is bouncing around all over the place when trying to set it. It’s not by much but I need to have it at six and it will fluctuate up to 12 BTDC then back to six. Idle is approximately 900-1000 RPM. So I almost wonder if that’s too high to set it initially.... also...
  5. SSTKO81

    Vacuum advance for 140?

    I recently found myself in need of a new distributor and found a part number cross reference that directed me to one with a vacuum advance. Now mine (1981) doesn’t have vacuum advance but I guess I could see the benefit of adding it. Has this been tried? Any thoughts on why it would be a bad...
  6. SSTKO81

    rebuilt 140 doesn’t like to idle

    Rebuilt ‘81 140 doesnt like to start without really feathering the idle. -even if I’ve just shut it off, it won’t restart without pumping the throttle than holding it down to bring it up to 14-1600 RPM. After About 20-30 seconds of that I can bring it down to 1000 rpm and it’ll hang out there...
  7. SSTKO81

    Will a transducer for a Super 60 work on Humminbird Wide Eye?

    The whole question is in the title.... I'm trying to find out if the old (but still working transducer from the old Humminbird Super Sixty will work with a 2007 Humminbird Wide Eye. I don't know what to look for or check or what kind of wiring adaptations I might have to make but I figured...
  8. SSTKO81

    140 won’t turn over

    Good afternoon everyone. Thought my project was coming to an end; had the bottom end and bearings replaced on my 140 over the winter, everything is back together, and engine was test fired for just a brief minute to make sure everything was in order before putting in back in the boat. But now...
  9. SSTKO81

    Coupler swap question

    I’m sure it’s been covered but I’m gonna ask again. I’ve got and 82 merc 140 that soun the round style coupler, found a guy on Craigslist parting out a late 80s 120 w the triangle coupler. Will they swap?
  10. SSTKO81

    Lots of ignition/starter/alternator questions

    I'm going to enclose plenty of pictures here soon so you'll see what I see. I'm trying to make sure all my Ts are crossed and i(s) dotted.... So the alternator I've got is a GM unit. The 4 wire system is now a 3. I've got the red and orange wires spliced together. That just leaves my ground and...
  11. SSTKO81

    140 RUNNING (& DYING & SCREECHING) AGAIN

    Hello boys and girls. After a long out of body experience my 140 is back in the hull where it belongs. Had everything realigned and reconnected by a real live boat mechanic and it was probably the easiest $500 I ever spent. Got a new Optima battery yesterday and went to fire it up for the first...
  12. SSTKO81

    TOWING WITH A COVER

    I just purchased a Covermate cover last night and paid right @ $200 for it. This is the most I've paid for a cover as I usually go for the $70 jobs at academy and then have to replace them every 2 years. (3 if I duct tape them back together) The killer is always towing. Even for a short jaunt 10...
  13. SSTKO81

    Oil leak at front crank?

    Looks like I've got a nasty oil leak from just behind the harmonic balancer. I'm guessing this is the front crank seal and I'll need to pull the balancer but I'm having trouble figuring out the part number for this seal. Anything I need to be aware of when doing this?
  14. SSTKO81

    Bench testing 140 No Start

    I just finished freshening up my '81 merc. 140. reworked head, valves, rebuilt carb, new oil pump. I stabbed the distributor back in and set time to TDC. I've got spark when starting because I shocked the hell out of myself trying to test it.... But the engine seems to only want to fire while...
  15. SSTKO81

    140 fuel pump orientation

    I recently tore down my '81 140 top to bottom to reseal it and upgrade the head. But now that it's reassembly time I've had an epiphany. I remember having the fuel pump installed with the filter cap facing up. But it seems to me every other iteration of this style of pump on other chevy engines...
  16. SSTKO81

    Trim pump gets hot, clicks, smokes

    Happy 4th everyone! Got an issue with my trim pump. Was having a problem with down solenoid grounding out so replaced and now the motor won't go up or down. I've checked all the wiring diagrams and its hooked in correctly. But rather I hit the switch or arc the solenoid posts it will struggle to...
  17. SSTKO81

    Tiny Oily bubbles around head bolts/manifold

    Had my 140 running on the muffs today and found the the center head bolt on manifold side has tiny little oil bubbles showing up around it. -couldnt tell if it was a leak or boiling off oil that was already there. Also noticed some tiny little bubbles showing up around manifold gasket. All bolt...
  18. SSTKO81

    Merc 140 wont go forward, only backward?

    Where to start???? Ok so when launching off the trailer, she started almost right away. I let her warm to just over 100* (according to the thermometer on the dash) at around 700 rpm or so; then went to put it in gear. I've always been told, dont do it slow, just pull it back till you feel it...
  19. SSTKO81

    Loss of power when too hot normal?

    Just got my boat back yesterday from having a new cylinder head put on. Took it out for a test run and everything was great for the first 10 minutes. Then there was a hiss noise and suddenly the temp started climbing. -I slowed down and turned back but by the time I got to the cove I was over...
  20. SSTKO81

    Merc. 140 sounds like a lawnmower

    Recently took my 140 out for a spin. Ran great up to 2000 RPM then Sounded like a briggs and Stratton. -sounded like it was coming from the carb. -backed off the throttle and ran fine for an hour. -just sounds terrible and has no guts after 2k. Ever seen this before? Thought maybe a bad carb...
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