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    Idles, no power

    I had a compression tester malfunction on me one time. Get a second tester and see if readings are the same. If so I expect you will have to repower. If salt used, replace block.
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    Idles, no power

    If by "reseating," you meant adjusted volves then do compression test to pinpoint area. Examine plugs. If rust or water, you may have to tear motor apart and buy new exhaust manifolds or risers. However, you may have spun a bearing.
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    Buying a used boat with Mercruiser 228

    Tell him you will sign contract that also allows you to drill 3-4 1/4" holes on the inside of transom near transom assembly, and if crud or rot come out, the sale is off. He is selling the "find" for a reason. I have rebuilt 2 transoms on I/Os. It is a job and requires lots of time and patients.
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    Buying a used boat with Mercruiser 228

    How used???? Saltwater used? Anti-freeze cooled or only sea of fresh water cooled? When were riser/Exhaust manifolds replaced? If salt used and over 5 years used in salt and totally sea water cooled, expect another 5 hundred bucks or more to replace them. If motor is over 5 years old and used...
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    Water in the Oil +

    84.... Throw a way. You got plenty of usage out of it. Trust me!
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    Oil pressure dropping

    Install a new manual oil pressure indicator and compare.
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    Water in the Oil +

    If salt water used, pitch motor. If not, tear down, at least, the #7 side.
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    idle adjustment screw

    Idel adjustment on carb or on throttle linage?
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    1988 Mercruiser 5.7 timing issue.

    Recheck plug firing order. MC have a motor anchor process that makes it different to see motor vibrate, if a plug wire is dead or wrong on plug. Recheck firing order and examine plugs were not fouled or electrode damaged when installed.
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    Mystery Knock -- Insurance and Warrantee

    Might be wrist pin or piston slapping due to load on motor. Buy cheap stethoscope to identify precise noise location.
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    Loud squeal and no idle. Replaced head gasket, put engine back together now this…. :(

    Or Gimbal bearing needs More Grease? When was last time OD serviced and alignment checked?
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    Broken Skeg Tip...Repairable?

    any decent TIG welder can fix this. Just be sure he knows prop seals will melt if too hot. TIG will get hot.
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    Tachometer bouncing

    Have friend exercise electrical connections and see if tack bounces, while you are at helm. Not real sure about EST, but I'd make sure coil wire is connected and tight and good ground. Wires get corrosion.
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    Loud squeal and no idle. Replaced head gasket, put engine back together now this…. :(

    alternator whine????
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    2000 Sea Ray 190 CC Hull Soft Spot

    Buy some resins and cloth and reinforce. Oh and grinding tools and respirator.
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    Freshwater Boat to Saltwater

    Living in NW Florida since 1959 and having owner 1 OMC and 3 MC I/Os and with countless friends who owned I/Os, we learned not to store them wet in salt water. Pay extra for a lift or trailer them. Maybe this area is cursed, or paints and anodes have improved dramatically. However, I seldom see...
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    Exhaust manifolds, time to replace?

    It must be our hot weather added to the salt that causes our iron products to rot through sooner than most. We seldom winterize in NW Florida. It is always HOT or warm! We might get 5 years out of salt water cooled risers, with good flushing. Manifolds seem to last a couple of years longer. I...
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    Exhaust manifolds, time to replace?

    If Saltwater used and flushed with fresh water after every TRIP HERE IN NW Florida, I'd replace risers for sure. We didn't have much luck past 5 years. Now, wonder what the inside of your block looks like. Thin heads are even worse. Many Floridians have gone OBs or antifreeze cooled MCs. Is it...
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    2000 Sea Ray 190 CC Hull Soft Spot

    I owned a 1995 Proline that had a lot of foam in the bow area that had been saturated with water. Yet, the hull was "hammer" solid. Transom not so much... The bow cavity was full of water. I drilled limber holes and watched water come out daily all winter long. A shop vac accelerated water...
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    2000 Sea Ray 190 CC Hull Soft Spot

    I've owned two SRs. Balsa decks and foam inside cavities in bow and under decks. This reduces the need for additional stingers, but not all. I repaired BOTH SRs. Fuel is possible. So, know your boat. Drill holes inside NOT OUTSIDE. Limber holes are for inside. Good luck.
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