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    possible seized motor?? Input appreciated

    On wednesday I checked coolant level and heat exchanger tank was empty added approx 3-4 quarts of coolant, ran motor and all seemed fine. Thursday went out fishing, both motors run fine holding a steady 150 degree temperature for most of the day. In the afternoon I notice that temp on port...
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    1986 crusader 454 bogs down under load

    Need some direction on potential issues before I start troubleshooting. port side motor will bog down when underway at 2000 rpm and will then intermittently backfire thru carb. Fuel filters are new and no fuel in pump sight line so I am guessing fuel pump is ok. not sure whether to direct...
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    Overheating after elbow and riser replacement

    Thanks Ricardo, The block off plate is located at the bottom of the riser between the riser and manifold. The manifolds are a part of the closed cooling system so I beleive that it is a full system. The raw water exiting the heat exchanger is dumped into the bottom of the riser and exits from...
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    Overheating after elbow and riser replacement

    I would appreciate some input on this one as I am about to be driven crazy trying to figure out what the problem is. I recently undertook routine replacement of the elbows and risers on my 1986 Tiara 3100 and as usual removing the old risers was a nightmare but eventually they came off but as I...
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    Vibration issue

    My Tieara 3100 with twin 454 Crusaders and velvet drive transmissions has developed a bad vibration at the rear of the boat that starts at approx 1800 rpm seems to peak at approx 3000 rpm and goes away at 4000 rpm and above. The vibration has slowly been getting worse over the past year. I plan...
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    Rochester 454 Quadrajet Rebuild

    Anyone have a recommendation for a vendor to rebuild these carbs? Thanks Ned Long Beach, Ca.
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    Mechanical Fuel Pump Replacement on 1986 Crusader 454

    I need to replace the fuel pump on the starboard motor in a 1986 Tiara 3100. Acess to the pump without major dismantling of the engine seems to be almost impossible. I am sure their must be an easier way to access the pump! Has anyone got any tips or suggestions for this job. Thanks in advance. Ned
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    Leak at riser stud after installation of new riser and elbows.

    Just finished installing new Osco risers and elbows on a 1986 Crusader 454. I followed the instructions on several threads in this forum and in the crusader manual. Apart from getting the old risers off, which was a major pain, the rest of the installation went smoothly. After running the...
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    Diesel fuel filters being used in a Tiara 3100 with gas engines

    Anyone know if it is a problem to use Racor water seperators intended for Diesel fuel in a boat with Crusader 454 gas engines. I removed the filter elements this weekend intending to change them and noticed that they are 2 micron diesel filter elements. Now I am thinking that instead of changing...
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