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    Best Size Trim Plane

    I posted this request under the Mercruiser I/O section, but some viewers in this forum may be able to provide a better response. I found out the other day that my trim system is woefully too small. I have hyd. 12x9 tabs on a 29 ft Proline. Bennett recommends 18x12 with down fins on the side due...
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    Proper Trim Tab Size???????

    I found out the other day that my trim system is woefully too small. I have hyd. 12x9 tabs on a 29 ft Proline. Bennett recommends 18x12 with down fins on the side due to the limited stern area available to add larger tabs. Bennett doesn't make trim planes with larger than 12" chords. However...
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    Firebouy Fume Dector Malfunctioning?

    I have a Xintex M-1-R that doesn't apear to work. I sent it back and was told by their tecks that there was nothing wrong with it. Yet, it only sounds alarm when I disconnect the sensor from the quick connector. I actually spilled a cup of gas directly below its sensor but alarm didn't sound...
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    Electric Fuel Pump Installation

    Anyone know how to properly install Sierra electric fuel pump 18-7331 (low PRESSURE type)? I have (2) 100 gal tanks that feed two 350 v8s. I have concerns on fuel pump placement. Each motor has 10 micron water separators before current pumps. Pumps are installed on port and stb stringer that is...
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    350 Chevy Compatibility

    I currently have two 350 Chevy v8s in my boat( Mercruiser Alpha 1 Gen 2) . Both motors have the complete rear main seal/crank (not two pieces), and the space where a manual fuel pump world be placed is cast over. The cam is a roller. I don't suspect that there is much HP gain due to the roller...
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    Electric Fuel Pump Nightmares

    I have 1994 Mercruiser Alpha 1 Gen II/ motors that have been replaced at least a couple of times. The latest motors, 5.7 Chevys both have electric fuel pumps and the pumps appear to be automotive with jury rigged wiring. I am trying to make a safe as possible. I have read other posts explaining...
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    Mercruiser Thermostat Issues

    I have a 1994 Pro line with twin 5.7 Mercruiser (not original) that are sea-water cooled. Neither possess closed cooling systems. I recently installed new Sierra 142 degree thermostats each and one new temperature sender to starboard motor. The gauges are original, as best that I can tell. With...
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    Bent 350 Chevy Mercruiser Snout?

    I recently took a 350 Marine Chevy engine to a local shop for a complete overhaul. I have used this shop before and experienced good results. Upon installing motor, after rebuilding transom (too) , my neighbor and I adjusted Mercruiser motor mounts as I have done in the past on several other 350...
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    Mercruiser coupler alignment

    I have aligned couplers too but now I am having problems that my friend and I cannot resolve. I recently replaced 1/2 rotted transom on 1994 pro line 2950 cuddy/v8 MC alps 1 Gen II. Outer skin (about 1/2" think) was OK. I epoxy 2 3/4" marine ply into spot that had been consumed with rot. It was...
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    Need trim and limit switch routing diagram where wires are routed in gimbal housing

    I have not been able to find how to route wires inside the MC alpha 1 gen II gimbal housing. I installed new switches and know how wires pass through top part of housing ans secured with two compressed halves, but do wires route behind 3/4" water hose or what? Do they require tie wraps to secure...
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