Recent content by gregtobin

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    Merc 115hp water pump

    I have about 6h of time on my 76 merc 115 since replacement of water pump two years ago. Last year, it peed out the tell tale like a champ. This year, I put the muffs on in the yard and no pee. I suspect that there is a piece of something clogging the line - not the failure of the pump. Is...
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    water pump - Merc 115 '77

    In late 2008, I took my boat into a nearby shop for several repairs and asked them to service the water pump while they had it. I later took the boat onto the water a few times for maybe 10 - 12 h in 2008 2009 was busy for me and I only got in once for 3-4 h. Water out the tell tale was...
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    merc 115 fuel pump

    I am trying to trouble shoot a lack of fuel problem. I use 6-gal fuel tanks under the transom and have a new fuel line with new bulb. How would I troubleshoot the fuel pump? Thanks Greg
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    what to do with old fuel?

    Each spring I find myself with 5-10 gal of 1:50 fuel left over from the previous year. Even tho I add fuel preserver to it, this old stuff doesn't work very well in my 2-stroke and sure doesn't do much in my chain saw. What can I do with this stuff? Thanks!
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    Merc 115 hp 6 cyl not starting - water in carb?

    I have a 1977 Glassmaster with 1973 Merc 115 outboard. For fuel, I use three 6-gal tanks placed under the transom. At the end of last summer, I switched tanks out on the river and there must have been some water sucked up from the tank as the inline filter looked a little milky and then...
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    ran out of ramp

    Everyone loves boat ramp stories. I was exiting from the river a while back and there was a pretty large boat (26' cabin cruiser) trying to pull out on the other side of the double ramp. Seems that he had backed the trailer down so far that he ran off the ramp. WHo knows how long the ramp had...
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    hull design for stability and speed

    I am going to sell my 77 17.5' Glassmaster to buy a newer boat with better reliability and power. I currently do most boating in a section of the upper Potomac River that is wide, calm, and deep - mostly pull kneeboard/wakeboard/tubes, but want more power to pull a skier. I have a Merc-6 1150...
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    prop depth

    I have a Merc 1150 with a 17p prop on a 17.5 foot fiberglass boat. WOT gives me about 4400-4800 RPM and I'm planning to test a 15p 4-blade SS prop. Before I do this, what should I know about adjusting the height of the motor so that the prop is at the correct depth? I want maximum hole shot...
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    prop exchange on iboat forum?

    With so many of us switching props to improve performance, would it be possible to arrange some kind of swap system? I see that we could do this two ways: 1. we simply offer up our old props to anyone who want them for very little $ by posting availability in some corner of the forum or 2...
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    115 hp prop

    I have a '74 Merc 1150 on a 17.5' fiberglass boat. Acceleration/hole shot is more important than top end speed. I recently replaced the non-working tach with a new one. I ended up running a new wire from the upper set of connectors (connects to an original green wire) as this is the only post...
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    Merc 1150 tachometer installation

    Sorry if this is a partial duplicate posting, my computer just wacked out. I wired up my new tachometer last night and want to check my RPMs tomorrow. Most of the wiring on my 1977 Glassmaster with 1974 Merc 1150 have been replaced and are no longer the correct color code. The brown tach wire...
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    tilt vs trim

    My 74 Merc 1150 on 79 18-foot Glassmaster has the mountings for external tilt cylinders. I understand how both tilt and trim tabs work but I'd like some advice on their installation and use. First, it seems that trim tabs would be easier to install, especially the electric ones. For getting...
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    74 1150 trim

    My 74 mercury 1150 6 cylinder did not come with trim pump or cylinders. I've tried to find some on ebay and other places but am not exactly sure what I'm looking for. Does anyone have part numbers for the cylinders, the pump, and the controller? Thanks Greg
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    faster 1150?

    After reading posts from various boaters (pulling skiers out of the hole like a rocket with an 85hp, a 150 hp going 62 mph, etc) I'm thinking that my boat is pretty slow. This is a 1976 1150 on a 1979 Glassmaster 17'6" fiberglass boat. My top speed is about 33-34 mph with 500lbs of...
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    Fishfinder: mono or color?

    In buying a low to mid end fishfinder, 'm trying to decide whether it is better to get a high res mono or a lower res color (yes, I'd like to get a great big hi res color, but can't get it in the budget!). For example: Hummingbird 727 monochrome 640x320 5" dual beam for $240 vs. Hummingbird...
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