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    Guide to using automotive PS pump as a replacement

    Hi, After burning up my PS pump, I started looking for a replacement and found that a new merc unit costs $400+!!!! What a ripoff. Following a previous thread on here: PowerSteering, I was able to replace it with a pump that costs $38 bucks at autozone. Here is a walk through and a question...
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    Unbalanced Steering

    Symptoms: Power Steering is not balanced. At idle in neutral, wheel turns itself all the way to right. It is a struggle to turn wheel left. My attempt at fixing it: I disconnected steering cable from power steering ram end, disconnected outdrives from ram and started engine and since ram...
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    Stiff Steering!! Please Help

    My boats steering SUCKS!:mad::mad: It is way too hard to move, So what do you suggest with my current problem: Across the whole range L-R it is hard to move. If I move the wheel really fast with force, it is a little easier. This is all at idle / low RPM --Steering cable is great (I've...
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    Sticking Open Secondaries on a Quadrajet

    Quadrajet secondary air valves are sticking open. I haven't had the boat out on the water yet, but when i push them open with my finger, they catch in the open position and don't close. (not the butterflies below, just the air valves) If I understand correctly, these air valves help meter the...
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    Shift Interrupter wiring question

    Every wiring diagram I've seen of my 1987 Mercruiser 260 engine with Thuderbolt IV shows four wires coming off of screw posts on my distributor (black, white/red, white/green, white/green.) However, my distributor has only three wires going directly to the ignition sensor with no screw posts...
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    Will a new shift shaft go right in?

    Hi, I'm working on getting a boat back in the water that has been sitting for the past three years. It's a 1987 twin engine, Mercruiser 260s mated to Alpha Ones. Serials off the O/Ds are OB-666179 & 666201 Looking at pg 4A17 in manual #6, it says I may need to tap the bell housing to use the...
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    Are these Coils still good?

    1987 Mercruiser 260 Thunderbolt IV ignition system, Alpha One drives. Wellcraft II Spyder I just bought this boat and am working on getting it ready for the season. The boat sat unused and covered for the past 3 years. The STBD coil had some electrical tape covering the connections, with some...
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    How to clean your gauges if they are hazy, sun-worn, nasty looking

    So I decided to tackle my gauge cluster today on my boat, all the gauge glass is made of plastic and over the past 16 years its turned a yellowish hazy color. Looked pretty bad. Step 1: Turn off key / disconnect battery or you risk shorting your gauges out. Step 2: If you can, remove the...
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    Need help fixing Trim UP function and identifying switch use!

    I've taken on a 1993 Maxum 1700SR boat restoration project and am sorting out the wiring. Surprisingly all the electrics work except for the radio and trim up control. Has a I/O Merc 3.0 Alpha 1 The "trailer" button on the throttle arm works fine, and of the "up/down" trim selector on the...
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