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    What reason causes the water leaking into gimbal bearing house?

    There is a housing seal that prohibits water from entering through coupler spline. Few replace them but you have an older boat that may need a new one. Water spray may be dripping down into cavity. You can buy a pressure testing tool. I suggest investing instead of throwing parts after parts...
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    Run Merc 3.0LX on external fuel tank

    UR tank may have been compromised or your hose vent is toast. UR water fuel separator should have an additional input and output hose barb connection (may have to install). I have fuel tank selector switches in mine in addition to the fuel separators.
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    Trim won't go all the way up

    You should have OD up/down trim switches and trailer up/down switches. Charge battery!!!!! Jump it at trim's solenoid to point you towards the next place to check. If it will not go up and down completely by jumping solenoid, start looking there. It may be bad pump or bad solenoid. It takes more...
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    Cold engine despite running for a while. Water entering bilge

    Make sure thermostat is working or/and installed. The engine needs to operate efficiently at a certain temperature range. If salter water motor, y pipe or core/freeze plug may have corroded through. Use a mirror as best as possible to see under motor. Pray motor didn't freeze during winter and...
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    Shift interrupter switch

    Defective or not wired correctly... U shifting fast???? Set 700 rps in the water, not on land and hooked up to a hose.
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    Where did my oil go?

    and endless hole in the water to dump money!!!!!!
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    Tips On Replacing Starter

    My experience is that you will have to remove STB exhaust manifold and risers (if you have them), to provide more room. That is how I replaced my starter. You can cut off bold heads of 5" long bolts and cut in flat screwdriver slots into the bolts. You can then replace the manifold center bolts...
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    Thunderbolt 5 Base Timing Issues

    They both have knock sensors and modules. I will check to see if they have some other writing on them indicating they are not TB5-THX
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    Thunderbolt 5 Base Timing Issues

    that is how we determined the switches were not defective, or at least for now not causing alarm to sound. THX!
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    Thunderbolt 5 Base Timing Issues

    Motors are 350 non vortex and non-roller cams. As for years, I don't have a clue. Former owner (since deceased I believe) machined these into Strokers. Before I put up boat 4 years ago, both motors ran great. I used distributor tool to pump/circulate oil before starting. Lube bottle wires are...
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    Thunderbolt 5 Base Timing Issues

    After some health issues, I am back into rebuilding my Old Sea Ray. I have port running great. Starboard is having issues. 1: I cannot get performance. It feels like it is in timing and will not advance (correctly). I disconnected lead and grounding it, but distributor still advances on...
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    Manual fuel pump restrictions?

    used boat and didn't come with them. THX . The fuel selector labeling was not pointing to the correct fuel lines. We finally figured it out. Getting plenty of fuel, so far!
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    Manual fuel pump restrictions?

    We were not getting fuel to pump. We believe we have it all corrected now, but I want to be sure the fuel draw length will not be an issue later on. We will check for inline filters today. Just to be sure....
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    Manual fuel pump restrictions?

    Thanks to all. I will examine for additional inline filters!!! Their addition would seem to be too redundant, but I am not a marine engineer. The pickup tube screens have been removed. I discovered that potential problem. 2' is vertical DROP (best that I can tell) from fuel separator to FP...
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    Manual fuel pump restrictions?

    I have about a 2' foot vertical drop from my fuel tank to Chevy 350 with manual fuel pump. However, the horizontal length of the line is about 6'. Fuel comes from tank into a tank selector switch manifold and into a water/fuel separator. From there it goes to fuel pump. Is this horizontal length...
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    Alpha gen 1 shift cable adjustment.. cannot get reverse.

    CHEAP! BUY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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    Troubleshooting stiff throttle

    Buy lots of brake cleaner and a large flat pan and start cleaning. At least eliminate all the old grease that has gotten hard. MC makes a special Teflon grease. Use it.
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    Alpha gen 1 shift cable adjustment.. cannot get reverse.

    I don't know how you could do that. It'd take too long for WD40 or any solvent to work its way through shift cable. Mine is 15 feet. I'd love to know how. My helm's shifter linkage was full of harden grease after boat set for almost 4 years. I was having a similar problem to above. I could not...
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    Alpha gen 1 shift cable adjustment.. cannot get reverse.

    You may have already done this, but disconnect one piece at a time at your control linkage to determine if cable is binding, where it is binding, or your problem is in your OD. Grease gets hard over time.
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    Base timing on TB5 350 V8 Carbureted with knock Sensor???

    THX!!!!!!!!!!!
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