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  1. O

    Exhaust coming out of prop on Port 4.3 but not Stbd until 2000 rpm

    At Idle in fwd under way no exhaust is mixed in with the prop wash on the starboard engine, you can clearly see the exhaust in the port prop wash. at 2000 rpm or so you can see it on both sides. I havent taken the elbow's off yet but wondering if anyone might know what's goin' on there.
  2. O

    2001 Mercruiser 4.3 one manifold elbow getting warm, the other is much cooler,

    The Port side of the Starboard engine elbow is getting warm, the Starboard elbow is much cooler, didn't let it run too long with the muffs (not in the water yet). I will pop both of them off to see if something is clogged, (it has been 3 seasons at least since they have been checked/removed...
  3. O

    2001 4.3 Mercruiser, Fresh bottom end and head rebuild, Stbd Ex Mani cool, Port gets hot

    Had a hydro lock situation, saltwater in all 6, pulled the block, new pistons n polished crank. Put it back together, new t-stat hsg as well, started right up but not smooth like the Stbd engine, but it's like its running fat, only on the port side where the manifold is getting hot, like no...
  4. O

    1980 9.8HP 110 no spark

    I'm not getting any spark on this thing, I replaced the Pack like 5 years ago and it only has 5 hrs on it since then. Stator's and Trigger are still original, Yikes, that's where I'm going to start, got the puller on the flywheel with tension, filled the cup w/ PB we will see if we need...
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    Mercarb chokes. Functional?

    2001 Chapparal Signature 28, Just got it, twin 4.3 262 V6's with Mercarb 2 Barrels. is the choke supposed to work? Mine are stuck open because the link goes to a bell crank that is held tight by a screw (no swivel). One is oxidized in place and wont move anyway, (PB Blasted it and it freed...
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    Serial number location and why does the parts catalog nor recognize the one I have

    I have a 2001 Chapparal 280, with twin 4.3's The s/n's on the registration start with M05####, both of them, I will check the actual tag when I go to the marina, but I have seen a picture of the tag on the Stbd side near the block and flywheel cover. When I enter the S/N in the search for...
  7. O

    85 200 Black max dies at 2000 RPM under load

    I have a 200 Black Max with a rebuilt powerhead SN long gone, reasearch says it's around 85, no oil injection, was removed before I purchased the boat (10 years ago). I mix with only Quicksilver. Drained tank completely (due to a leaky filler cap), filled up fresh, ran great from the boat ramp...
  8. O

    intermittent slipping in and out of reverse, 200 Black max

    I have a late 80's 200 Black Max. (no S/n or nameplate, and a rebuilt power head) it engages into reverse but slips in and out intermittently. I was hoping to get some suggestions before I started adjusting linkages or taking things apart. Been running fine for years, just started happening.
  9. O

    88 200 Black Max Poppet valve

    I posted a question about how brand new plugs were oily after a 1 hour ride. The previous owner chose not to put thermostats in the heads (Duh) So I am going to get and install a couple of those. my question is about the poppet assembly, mine only has a round cover over the diaphram and does not...
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    New plugs Oily after 1 hour ride

    I have an 88 (I think) Black Max. I changed the plugs NGK BU8H and after a 1 hour ride they had oil drips from the electrode when I pulled them out to check. at high RPM runs great, plenty of power at ilde sounds like random misfirig like its not banging on all six. it accelerates smoothly from...
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