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    460 King Cobra Shifter detent upgrade

    Hey everyone, Back again with another question about my engine/outdrive combo. Always appreciate the feedback get from you all. I have a '89 460 King cobra and was experiencing some hard shifting issues. Every time I'd go out the my outdrive would be stuck in neutral and I'd have to work...
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    Failed exhaust flappers

    Hey everyone, I have a 89 460 7.5L King Cobra. Was just doing some general maintenance taking off the risers and manifolds when I noticed that one exhaust flapper was broken. The little rod moved from its bushing and dug itself into the inner wall of the y pipe. The other flapper on the other...
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    OMC 460 backfire under load

    Back again with another 460 KC question. As always I appreciate all your help. I have a '89 460 OMC King Cobra. It's equipped with a Holly 4160 650 CFM carb (newly rebuilt) and a comp cams xtreme marine camshaft. Stock camshaft was replaced. Points distributor that has been rebuilt with a...
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    OMC 460 vacuum test/reading

    Hey everyone, I have a '89 7.5 L OMC 460 with a 650 CFM holley carb. I just recently rebuilt the carb and was going to do my due diligence on tuning the carb/engine to the right settings. I've set dwell and have the timing where it needs to be. I was thinking of doing a vacuum test coming...
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    OMC 460 running rich at idle after higher rpm

    Hey guys, sorry for the long write up. Let me know if you have any ideas. Thanks in advance. I have a '89 460 king cobra. Everything was completely rebuilt and she runs pretty damn good. The only issue we've been having is when we lower the speed/rpm coming off of plane. The engine seems...
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    2nd wiped Camshaft OMC 460

    Hey guys! Yeah its as bad as it sounds. At this point I'm just trying to figure out what is causing this problem. Bear with me on this long story and please help!! Backstory: Originally pulled engine to address a transom leak. While engine was out we figured we should do a once over and...
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    460 King Cobra oil pump

    Hello everyone, In a week or so I'm pulling the engine to replace a cam shaft in my '89 460 King cobra. While out in the water I noticed that my oil pressure would drop significantly at higher rpms. (sorry I don't have the specifics but I remember it was in the 40psi range at higher rpms)...
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    '89 OMC 460 Camshaft

    Found a lifter failure on our 460 and it looks like we're going to swap cam shafts as a result. Need some advice on choosing the right camshaft. The book only gives the specs on lobe lift of this engine. (Intake .285 Exhaust .290 with max allowable lift loss .005) Most websites only give...
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    Wiring question: Slave solenoid to Ignition coil

    Hello again, I have a wiring question for you guys, hopefully you can help me out. I have an '89 OMC King Cobra. After rebuilding the engine I was putting all the wiring back together and noticed some mystery wires that were cut by the previous owner. I always wondered what they were for so...
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    OMC 460 Timing / Harmonic balancer

    Hey guys, I'll be doing a timing procedure on an 89 460 King Cobra pretty soon. I know I'll need a dwell meter to set dwell and a timing light to adjust timing, however the harmonic balancer or crankshaft damper on the engine is very rusty on one section, which happens to be the section where...
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    Electric fuel pump and placement

    I have a 89 7.5 L OMC 460 king cobra. I've decided to go the electric fuel pump route. I know about installing the Oil pressure switch. I'm more curious as to which electric fuel pumps everyone likes and placement 1) . Should the new electric fuel pump be placement between the fuel tank...
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    tracking down a leak through the transom

    Hello everyone, Was out on the water and noticed some water in the bilge. Had previously thought it was coming through a thru-hull fitting but I tracked it down near the y-pipe. (Check out the video). I've been searching through videos and parts diagrams to see if I can locate the most...
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    Spark Plug wire order

    Hey guys, this might sound like a dumb question but help me out here. I have a 89 460 king cobra. We were working on sparkplugs and what not and forgot to label each wire once we removed the wire from the distributor cap (they're currently all off). I do understand the firing order and I...
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    Starter not engaging the Flywheel ...90HP

    Bear with me on this long story. I'll give as much info as I can but I'm stuck on this one. I've been working on my Father's '96 90 HP Mercury Outboard Model: ELPTO After noticing the positive power cable running from the solenoid to the battery was corroded, I decided to replace it. I went...
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    Anode Thread size???

    This might be a question hard to answer but I can't for the life of me figure out the right size for the anode bolt on the outdrive. I have an 89 7.5 l 460 King Cobra. I recently bought a new anode for the outdrive. However, the original anode was not there nor was the bolt to hold it in...
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    How important is the Exhaust seal flapper?

    I've been slowly fixing up an '89 460 King Cobra. Recently found the exhaust seal flappers part #0765166 broken off in the bellows. My question is, how important is it to replace these 2 flappers located at the top of the Y exhaust pipe? I know the purpose is to prevent raw water from going...
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    OMC 460 King Cobra Serial Number

    Hey everyone, First post for me but have been reading lots of the topics lately and love the forum. I recently inherited an '89 Bayliner. We've been slowly fixing the engine and learning how unlucky we were to get an OMC. That being said, the engine is now idling perfect after some work...
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