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    L-Drive Opinions

    Forgive me if this has been asked before. I sold my boat that was a I/O Mercruiser so I was on that forum alot. I am looking to purchase another boat and found a sweet deal on a '90 Bayliner but it has an L-Drive engine. I am not familiar with them and haven't read anything good about them...
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    Oil Pressure? / Carb float / What?

    85' Chris Craft Bowrider Mercruiser 3.0, 140. Alpha 1, Gen 1 What should the idle / running oil pressure be? It is around 30 idle and really doesn't move on the water running unless the guage is bad. Boat still isn't running correctly and it has all new parts. Virtually a new motor. I know it...
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    3.0 quick carb question

    Took my carb apart to check things out. Rebuilt it last Fall. In the accelerator pump there is a small bb under the screen. I have heard that is is not required and may improve performance of the pump if left out. Is this ture? I am putting it back together and want to know if I should put it...
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    3.0 Vapor Lock

    I have officially, after one year of throwing parts at my boat, come to the conclusion that I am having a vapor lock issue. I printed the Service Bulletin that Don S posted for me and tried mentioned methods. Day one: 90+ degrees. (North GA) I have increased air flow to my engine compartment...
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    Another 3.0L running rough thread. Very detailed.

    Let me start off by saying that I have loved this board over the past year. There are a few posts about this but I have done all that was suggested. I need to explain my situation. I didn't want to jack another mans thread! I still can't seem to solve my year long puzzle. Merc 3.0L, 140...
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    Mercruiser 140 Oil Pan Gasket?

    Can this be changed without pulling the motor? It seems like I can get a socket on each nut and drop it enough in the bilge to get new gasket on but it also looks like it might be locked in by the rear motor housing. I have a leak but I don't have the means to pull the whole motor. Thanks.
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    Cylinder not firing

    A friend of mine has a Merc 3.0, alpha 1. Just found out #4 has 0 compression via a leak down test. Mech gave him a quote of $1600 to repair. Sounds way high to me. Any insight? Thanks.
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    Fouling Plugs

    Over the past 4-5 weeks and with all your guys help, I have brought back to life a 1985 Merc 3.0 140. Running sweet this past Sat. hitting 40mph pulling a tube and with 3 other people on board. After going balls to the wall for 40 mins sputtered and died. Couldn't start it back up enough to run...
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    Trim Wiring Question

    I have been restoring a 1985 Chris Craft Scorpion and all has been going well so far! Knock....Knock.... I will post pictures soon. The trim gauge and Up trim does not work. Down works fine and I use trailer button to get trim up. I use feel to drive so not a big deal but I want the gauge to...
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    Oil Capacity

    Another question I have pertaining to oil. Relates to my other post I think. Merc 3.0L, 140 Help. When I did oil change, I added 5 qts of oil per 2 different Marina Mechanics that I have talked to over the past few weeks. Saw a post today that stated: "Being overfilled like that will cause...
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    Mercrusier 3.0, 140 Help

    I have been on this forum for the past few weeks and have found it very useful. But now need some help as I am stumped. I bought a 1985 Chris Craft a few weeks ago and it was not running good at all and stalled with a load. I fixed it to where it got to around 3000rpm and 29-31mph but no more...
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    Push Rods

    I replaced the push rod cover gasket and noticed that 2 bearings were lifted. Would this effect engine performance? I have been trying to pin point why I have coughing / sputtering problems.
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    Oil Pan Gasket

    How hard to change out yourself? I have read you have to lift motor to get enough clearance. I have a leak behind my timing gear. Pretty steady drip when running. I am guessing it is the oil pan gasket. Could it be something else? 1985 3.0 Mercruiser 140
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