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    Wire going from Coil to Tach grounding coil?

    The boat has been off the water for a while, one thing after another. Stearn drive gears, Bellows tear (major intake of water in boat, ie without foam would have sunk), exhaust crack leak, impeller replacement etc... After last job of replacing impeller she starts right up. I'm running her on...
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    Would this cause boat to take on water?

    Edited to request you start down at 7th post with the 2 images. You could read this original too I guess. ;) 1989 3.0 liter with stern drive. I took on water at lake and when I got it home I saw the bellows was ripped. So replaced bellows. Took back out to lake put it in at dock, hopped in boat...
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    Impeller, what are signs it needs replaced?

    Hi everyone, I've got a pretty new sterndrive and it probably only has 10 hours on it as this point. I see where people replace the impeller every year and every other etc. I understand the wisdom of preventative maintenance. My question is, if the impeller is in NEED of being replaced what...
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    Remove water from oil

    So... got water in hull, water got into oil via dip stick. I have a 1989 MCM (GM) 3.0 4 cylinder. To my knowledge it does not have an oil pan plug. I also assume the method of removing oil via the dipstick does not really reach the bottom of the pan as well as I'd like especially since that is...
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    replacing gimball bearing and bellows questions

    I have a 1989 Alpha 1 gen 1 and I cannot seem to find the grease fitting to attach to in order to fill the gimball bearing. I've looked with a bright flashlight and felt around with my hands to no avail...can anybody provide a photo or some guidance? Also, I will be replacing the bellows as...
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    Water in drive bellows...what needs maintenence?

    So I got water in the drive bellows. This was not a thing over a period of months but just days. The u-joints were just recently lubed, so I figure a a bit more to squeeze out the edge and see what it looks like maybe Do I need to worry about the stern drive? would it have maybe gone into...
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    Took on water, do these pics give a clue why?

    So after struggling to get the starter to work and then the engine to idle everything seemed happy on the muff so I put the boat in the water. Yes, I had the drain plug in :) Was pulling the boys around on the tube for about an hour and then all the sudden the engine started sputtering an died...
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    questions about running on muffs

    So I finally got the boat out today. Could not get it to stay running at idle, would always stall. Also it felt underpowered throughout the spectrum. A bit noisy too, more of a thumpy noisy tahtn a tapping or clicking. I did check point gap and set timing prior to taking it out. I may not have...
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    HELP please! I tried starting, get loud bank like a big firecracker

    Re: HELP please! I tried starting, get loud bank like a big firecracker And the after image rotated to line up and transposed over the before image... After image is in the red box and has the lifter cover bolts installed sorry about the attached thumbnail here, I don't know how to kill it.
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    HELP please! I tried starting, get loud bank like a big firecracker

    Re: HELP please! I tried starting, get loud bank like a big firecracker To me it seems like some sort of timing issue and since I moved both wires and dizzy they seem like likely culprits. They look good to me but wanted to post in the event extra eyes saw something. What else could be causing...
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    HELP please! I tried starting, get loud bank like a big firecracker

    Last year this MCM (gm) 4 cyl 3.0L engine ran. I had engine apart a bit, replaced cylinder head gasket, manifold gasket, carb gasket, fuel pump filter and gasket, water pump and gasket. Replaced starter brushes and put on new solenoid, cleaned wire contacts, put in new gapped plugs. I did...
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    Trailer lights making me insane !!!

    Vehicle is a jeep Cherokee. The lights have worked fine in the past when connected to a bike trailer and currently when connected to my boat trailer. My jet ski trailer however is making me insane. has a four wire harness. So did the bike trailer and my boat. Jet-ski trailer lights were giving...
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    Battery size

    This may be real silly and I'm sure I will likely get the "Get the biggest you can afford" but I'm asking on rather a learning level here. If my starter is rated for 375A Does that mean that when the starter/engine/battery/etc were all new and in peak working order that a battery with 375CCA...
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    Starter solenoid or slave solenoid or?

    Turn key - loud clunk. connect starter direct to battery - spin turn key and jumper to starter concurrently - turns over I'm assuming the issue is the starter solenoid but I just replaced it, fear I may have gotten wrong one. Also I am not familiar as to starter solenoid/slave solenoid...
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    1989 Mercruiser starter diagnostics help request

    Starter wouldn't start the boat with a good battery so I removed from boat. Brushes were pretty worn so I replaced them. Replaced with new starter solenoid. It still will not start. When turning the key I get a loud click. I am assuming it is the solenoid throwing out the bendix. No starter...
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