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    Smokey 4.3L Engine via PCV valves

    I have a 2003 Stingray with Merc 4.3 Carb 190A (Ser #M616646), I rebuilt the heads, replaced some valves after I blew a head gasket. I have it running now, but there is a good bit of smoke coming out the valve cover hoses that feed back into the intake. I thought it might 'burn through' as...
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    Stumped: poor compression on 4.3L Merc

    I have a Merc 4.3 L on a 2003 Stingray. Ran a compression check and get values between 185,130,180, 95, 20, 120. The 20 and 95 psi are the #2 and 4 cylinders. I took apart, found water in 1 cylinder and in oil. I had heads rebuilt (milled, valves replaced/reconditioned and reinstalled. I...
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    Oil power Flush procedure for low compression engine

    I have a Merc 4.3 L 190 CARB on a 2003 Stingray. Water got in the oil from bad head gasket and turned it to gray mush. I've drained and replaced the oil, but it still is not flowing (my oil pressure guage does come up so I know the pump is working). Does anyone know how to 'power' flush the...
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    CAM same for Using GM 4.3 to replace MERC 4.3L

    I have a 2003 Stingray with a MERC 4.3 Carb 190A (SER M616646 with a blown motor (scratches on 2 cylinder walls). I'm looking to save some $$ (maybe $800) and buy a refurb truck block from AutoZone that works in an S-10 Blazer. Seems to me if I take the marine parts (intake/exhaust manifolds...
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    Piston scoring

    I have a Merc 4.3 L on a 2003 Stingray. Ran acompression check and get values between 185,130,180, 95, 20, 120. The 20 and 95 psi are the #2 and 4 cylinders. I opened up and found: scoring on #2 cylinder. water in piston my Q: 1) Do I need to get engine rebored for light scoring of cylinder...
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    Merc 4.3 compression test and non-start issue

    I have a 2003 Stingray with Merc 4.3 Carb 190A (Ser #M616646), just got it out of the shop (tune up/replaced plugs/clean carb/thermostat/oil). Running well until about 8 running hr later (exception, slight nock under high load). After tubing about 1 hr, put engine in idle and it stalled out...
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