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    Brief Engine Trouble, What Would You Do?

    Hello, I have a 22yr old boat with a Mercruiser 350Mag I/O with low hours on it and well maintained and started on muffs regularly. Took it out recently and after about 45min it started to kind of sputter or miss, it was losing power. Throttled back and turned around and made it to a dock...
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    How to take a look under the deck?

    Hello Everybody, I have a 22yr old Baja and want to check for water logged foam under the deck. The deck has a panel down the center of the floor that unscrews and gains access to the fuel tank. You can't see anything around the sides of the tank it is a tight fit in there. Is it usually...
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    Does a New Valve Have a 'Break-In' Period

    Hello, 350Magnum needed a new valve and also had a complete valve job done to both heads. Should the valve that was replaced be making noise? Does it take time to quiet down? Thanks.
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    What Actually Happens When RPMs Too Low?

    Hello, What, tulipped valves?? How? How low for how long? Recently got new 4-blade prop to test due to sluggish low end performance. With original 3-blade prop engine would turn 4600rpm on the 4200-4600 recomended range. New prop went up 1" pitch and engine lost 700 rpms, :confused: It now...
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    Should My RPMs Change This Much?

    Hello, Original: 3-blade 14x19 @ 4,600 rpm / 50mph New Prop: 4-blade 14x20 @ 3,900-4,000 rpm / 54mph I was really looking to get the boat out of the water quicker without losing too much top end. I read on these forums that a 4-blade stern lifting would lose 150-200rpm and the 1" pitch would...
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    Question for member rndn

    Hello, Your post in this thread http://forums.iboats.com/showthread.php?t=338608&highlight=baja you say you got a 22 pitch this thread http://forums.iboats.com/showthread.php?t=222825&highlight=baja+force you mention a 20. Can you please tell me what exact prop model# that you got? I really...
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    How Would You Fix This?

    Hello, Sorry for the length of this. 1989 Mercruiser Alpha1 Most of the continuity circuit parts where missing and/or disconnected. The continuity cables that run from the very botton of the gimbal housing to the gimbal ring and trim cylinders are not there at all. The screws are stuck into...
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    Trim Tab Anode: What Holds That Bolt In There?

    Hello & Happy Independence Day, [edit]I'll have to look closer at this. I have the allen head bolt in my hand, the lower is fastened to the upper. After I loosened the bolt and removed the tab the bolt seems to have been pushed through. Thank you.
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    Replacing Lower Drive Shaft Seal w/ Upper Still on Boat ...

    Is it possible? Dropped the lower to replace impeller and part of the driveshaft seal came out. The rubber part came out, the metal is still up in there. :mad: It is this part 26-965031. Who has the trick to get the remainder of that seal out from below? What tool? Any tips at all would be...
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    What are all of these parts for in the Thermostat Kit?

    Hello, Looking at the Mercury Marine Thermostat Kit 807252T 4 and comparing it with other diagrams I can't tell where everything goes. The attached picture below has the parts labeled 1 through 6. Looking at the diagrams it appears that they would be installed, from the top: - Steel Lifting...
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    Mercruiser Steering Locked-Up, Any DIY Troubleshooting?

    Hello, My Mercruiser 350mag/Alpha1 steering has locked-up. It will not move. The belt is turning the pump and the pump has fluid. There are no leaks in the hoses or fluid shooting out anywhere. Are there any basic troubleshooting things that can be done to the system to try and narrow it down...
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    Why Would The Spark Plugs Be Shorter Than Spec'd?

    1) The last person to change them used the wrong ones, not knowing? 2) The last person to change them used different ones, for some performance reason? 3) The engine has had some kind of work down that would require shorter plugs? I've got the 1998 Mercruiser 350Mag that I was told is...
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    Did older Merc350Mags have oil filters?

    Hello, I'm seeing in the Mercruiser service manual 31 that all models have a remote oil filter mounted on the top side of the engine. I have an older carburated 350mag that is not covered in manual 31 and doesn't appear to have any oil filter. Can someone confirm that they did have 350mag w/o...
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    What Material for Dash Panel??

    Hello, After one unusually hard landing the panel that holds the switches in the dash has broken. The dash has the typical wood backing and some kind of vinyl like main piece. The switches are set into a seperate plastic panel that is then screwed to the entire dash assembly. The yellow...
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    Anyone have a Baja Force 216, What Prop?

    Hello, I've got a '89 Baja Force 216 with the Mercruiser 350Magnum/Alpha1. I've only used the boat with me and one other person in it up until this last week. With two of us, 30gals, about 100lbs of 'stuff', trim tabs down, the boat will usually plane out in about 5-8 seconds. In good...
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    Do You Think It Will Explode?

    Hello, I've got a Baja with the typical Mercruiser setup under the sundeck. Two batteries mounted under there, one on each side. I just installed a two-bank onboard battery charger system that charges/conditions/blahblahblah. The boat is kept outside with a fitted cover and then a tarp over...
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    Throttle/Shift Controls

    Hello, I have a Mercruiser 350Mag with Alpha1 I/O and the stock plastic throttle control. It is side-mount with a square button in the center to disengage the drive, trim button on the side and trailer-trim down lower on the side. It works fine but the handle is loose and has some wobble in...
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    Photos: Hurricane Ike Damage, Many Boats

    Many pictures at the link. http://www.tpicks.com/pictures%20people%20have%20sent%20me.html
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    Different Amounts/Temps of Flush Water Coming Out

    Hello, I've noticed when flushing the engine after use that the starboard exhaust outlet has about 1/2 the amount of water running out and it is considerably hotter than the other side. Mercruiser 350Mag w/ Alpha1, dual flush muff, engine runs very good and pretty cool at 160 degrees all day...
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    Going 90 and thrown out of the boat!!!

    See the link, it has a photo: http://www.sptimes.com/2007/11/27/Northpinellas/Boater_ejected_at_abo.shtml
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