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    Damage to Stern Drive

    Hey guys, So I was out in the bay today and hit what I'm assuming was a submerged rock. Wasn't going fast, maybe about 10mph, but still did some damage to the fin on the stern drive and the prop. Prop I can deal with, curious if the chunks out of the stern drive is something to be concerned...
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    Oil pressure dropping off while under way

    Hey guys, Quick question....took my boat out today into the bay. Boat was running great for about 2 hours or so. On the return trip I noticed that the oil pressure was dropping down to between 0-20 (first hash mark). Was running at about 3k RPM. If I let off on the throttle, it would go back...
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    Prop for 3.0 Mercruiser

    I was inspecting my prop and it has a bunch of dings and is actually cracked on a fin. Looking to replace it, but not exactly sure which prop to get. I know that props are very user preference. I would be fine getting the same one I have on there now, but not sure how to read the numbers. On the...
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    Float replacement on 2010 3.0 TKS Carb

    In the process of rebuilding the carb, I weighed my float and it is at 9.2 grams. According to the merc manual, anything 9g and over needs to be replaced due to fuel absorption. I have been looking online, and the only part replacement I can find is a Sierra part. From reading the reviews there...
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    Engine starts and stops after emergency shutoff got hit

    Hey guys, 2004 Maxum with a 2010 Mercruiser 3.0. Took the boat out today. Started and backed off from the trailer and purred like a kitten, Docked it to park the truck, shut it down. Got back in, started right up. Backed away from the dock and accidentally hit the emergency shutdown for when...
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    Line questions

    Hey guys, couple of questions. I just picked up a new boat and need to get some dock line for it. It will only be used to tie it up to the dock while I park the truck, the boat is trailered. I went to my local marine store today and they have three strand nylon and also double braid nylon. The...
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    Sierra Impeller kit missing face seal gasket

    Hey guys I'm doing the water impeller on my Alpha One Gen 2. Got everything off and am starting the reassembly process. Got the pump back on and went to put the face seal on (I think that's what its called)...the gasket that goes over the drive shaft and sits on top of the pump housing. The...
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    Sierra Impeller Repair Kit

    I picked up a repair kit for my 04 Alpha one Gen 2 at my local Marine store. They gave me part number 18-3214D. I've been poking around online and most sites recommend 18-3214. I have looked at what they include in the packages between the 2, and everything looks the same. Does anyone know if...
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    Replacing Water Impeller and Oil Change Quesitons

    I just picked up a new boat and am going through and completing some of the maintenance items so that I know they are done. The boat has been winterized and has been sitting for about 6 months. Should I run the boat prior to replacing the impeller? Not sure if it needs to move or something...
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    Mystery Vent Hose

    Picked up a new boat and am going through it. I found one of the vent hoses for venting out the engine compartment was broken. When I went to look at it, it actually doesn't appear to be attached to anything...it's just flapping in the compartment. There is another vent hose right above it that...
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    Faria Gauge model

    Hey everyone, I just bought a 2004 Maxum 1800 SR3. The oil gauge is a little flaky. It won't read anything but if you give it a whack...it starts working. I would kind of like to know if my oil pressure drops and not have to start smacking it. It's a Faria guage, but I am not finding this...
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    Impeller replacement on 04 Alpha 1 Gen 2

    Hey guys, Just bought a new boat. It's an 04 Maxim 1800sr3. It was off a very friends brother so I have very good knowledge of the things that have been done. He had the impeller replaced in 2010 and it has about 56 hours on it or so. I'm figuring it's due for a new one given the age. Have a...
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    Mercruiser 3.0 - Throttle sticking between 3/4 and full

    Hey guys, Took the boat out last weekend and when I move the throttle between 3/4 and full it gets hard to push down. I can give it a little effort and it pops down to full and the boat accelerates. But when I go to back off the throttle a little and hit that same spot, I have to pull up and it...
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    Trim Tap "Up" not working

    Hey guys, I'm a little baffled here. I replaced both my trim pucks last year and installed a gauge. The up was not working at all and there was no gauge. After installing and calibrating, they were working great. They never saw the water before boat was winterized. Just fired up the boat...
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    Skipping motor - black plugs

    Boat is a 1988 Four Wynns with a 3.0 Mercruiser. End of last season, I replaced the head gasket and had the Carb rebuilt. Finished it up this season and it just hasn't run right since. Has a very bad skip at 2k rpm and will not idle. Brand new AC Delco plugs, cap, rotor and wires are all new as...
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    Which is the best spark plug brand for a 1988 Mercruiser 3.0

    Hey guys, I'm looking to pick up a some new plugs and am wondering which ones are the best ones. I looked up the plugs for my engine and I have the option of: AC-MR43T (AC Delco) RV15YC4 (Champion) NGK-BR6FS These were the part numbers listed in the service manual. Is either better than...
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    Brand new electronic ignition conversion kit - Still no spark

    I had a no spark issue. 1988 Four Winns with a 3.0, same year. Over the weekend engine just stopped firing. Had no spark. Already had an ignitor 1 kit on it, but had original coil, crappy cap, rotor and wires. Bought a brand new Ignitor 2 for it as well as a flamethrower coil. New cap, rotor and...
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    Will wrong ignition coil cause running issues?

    Hey everyone, So here's a quick run down on the situation. Boat is an 88 Four Winns with an 88 Mercruiser 3.0. Bought the boat late last season. In my only time out with it, it ran fine for about 15 minutes and then died and wouldn't restart. Restarted at home on trailer without issue. Found...
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    Where is Cylinder #1 on 3.0

    Boat is a 1988 FourWinns and engine is a 1988 3.0. I replaced the head gasket at the end of last season. I buttoned it all up this past weekend and fired it up. It was skipping like crazy at idle. I thought the engine was going to jump out of the boat and drive down the street. I checked the...
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    Stern Drive question

    Hey guys, Quick question. I replaced the water pump a few weeks ago and when I put the lower end back on, I messed up the linkage somehow and now won't go in to gear. I pretty much know what I did and how to fix it. My question is, I have to take the whole outdrive off to replace the Trim...
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