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  1. M

    mercruiser 140 will not exceed 4000rpm

    Morning all! So my newly rebuilt 1984 140 will not go past 4000 rpm and 29-30 mph. Prior to having the engine failure I was able to hit 4400-4600 and 37-39mph. It also seems to be missing "power" between 3000 and 4000rpm. Takes longer than I would call normal to get there. Engine runs good...
  2. M

    Form a gasket instead?

    Hey guys. Can I use form a gasket or RTV instead of the Mercruiser gasket for this one location? Replacing #29
  3. M

    Engine cut out while slowing down....

    1984 Mercruiser 140. S/N 6777639 Was out today and then slowed from being on plane to a no wake zone. Slowed very gradually. Started to hear what I would describe as valve clatter that grew more pronounced and then the engine died. Would not restart. Turns over like crazy but nothing. After...
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    Trailering larger boats

    Hey guys. I’m looking at a larger boat (Rinker Captiva 282). My plan would be to trailer it somewhat regularly as we like to boat in different areas. There is even a 1200 mile trip we would like to take trailering the boat. This boat is wider than what the max width is allowed on the road. It...
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    Starter bracket bolt size...

    Can anyone confirm what size bolt is used to secure the starter support bracket to the block? I am fabricating my own but bolt holes in block are empty. Engine is a 1984 Mercruiser 140. S/n: 6777639 Thanks guys! Rod
  6. M

    Starter support bracket...

    Hey folks. Got a 1984 Mercruiser 140 and have discovered that I am missing the support bracket (p/n 87300T) that holds the starter. As a result I have one broken started bolt and expect the other to let go anytime. I want to re-install it. No idea why the previous owner took it off. I have the...
  7. M

    Distributor spin on itself

    Hey folks. 1984 Mercruiser 140. Put the boat in the water today. Went to start it and it would not start well. Started very rough like it was running on three. Stalled. Would not start again. Opened the doghouse and discovered when I turn the key, the entire distributor assemble spins...
  8. M

    1984 Mercruiser 140 Alpha One Gen 1

    So I just finished the breakin period with my new outdrive (SE106). All went great. Was out yesterday and on my way back to the dock on plane running about 3200rpm, all of a sudden my tach starting erratically fluctuating up and down. 2500-3500rpm. At the same time the boat was slowing down...
  9. M

    2004 Rinker Captiva 282 Bowrider

    Hey folks, We are looking to get into a bigger boat and have fallen in love with the one in the title. It is a 2004 with 8.1 VP injection 375HP with 380hours. What should we look for specifically with this boat? If not this one, we will find another Rinker 282. Love the layout. Obviously...
  10. M

    1984 mercruiser 140 making loud knocking

    Hey folks! New to the forum. Learned so much already! Here's my problem: 1984 Baja Islander 180 with a mercruiser 140 Alpha I Was out on Friday after several other outings this summer when all of a sudden, the engine changed sound and then a very loud knocking could be heard. I shut her...
  11. M

    Which "The Right Stuff" RVT to use?

    In the process of replacing the timing cover and all related seals on my 1984 Mercruiser 140. I bought the gasket for the timing chain but did not drop the sump. I've read in many places that cutting the rubber gasket in front of the oil pan where the timing chain meets it works and to use The...
  12. M

    How important is the Harmonic Balancer?

    Hey folks! New to the forum. I have a 1984 Baja Islander 180 with the Mercruiser 140. Boat is in great shape for the age. I'm the third owner and the boat has always been trailered, never left in the water, and stored indoors. Engine pulls strong and runs like a top. I redid the upholstery...
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