BBC gurus..... need to pick your brains
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BBC gurus..... need to pick your brains

  1. #1
    Seriously off center slowride's Avatar
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    Default BBC gurus..... need to pick your brains

    First off, this is my first BBC as I have run 385 Fords until this boat. That said, I know the peculiarities that would make a 460 do this, but I'm lost on this 454. Sorry for it being so long winded.
    The boat is a 1991 Canyon tunnel and the engine is a 454 4 bolt marine engine original to the boat. I checked the block casting number some time ago to determine that but don't have it available right now. Has 990 heads, older Edelbrock dual quad tunnel that was modified to run the 6109 Holleys sideways. It was run for a VERY short period of time and then parked (last registered in 1995). I have absolutely no history on the boat and what I will describe is just by observation.
    I'm trying to bring it back to life slowly and cautiously. Had the tunnel ram off to polish it, check the cam (found roller of unknown specs), and put some oil in the valley to help lubricate it on start up. It has a remote dual oil filter with new filters (Wix, not Fram) which were filled before installing them. Pumped the old oil out and refilled with fresh for startup with nothing particularly nasty about it and not loaded with fuel. I bought a cheap oil pump primer to get some oil circulated before cranking and spun the pump with the valve covers off to verify circulation. While spinning the pump, it would build resistance as you'd expect when it builds pressure but after several minutes nothing to the rockers.
    I wrote that off to a cheap tool as I've heard some of these offshore tools don't seal well and bleed off pressure before it can get to the top end. Today, I pulled the plugs, fogged the cylinders and spun the motor over with the starter. Distributor rotor spins, rockers move, no nasty noises, and still no oil to the rockers. My next move will be putting a mechanical oil pressure gauge on it and trying to prime it again.
    Is there something common to the BBC that can bleed oil pressure before it gets to the top, or something obvious I may have overlooked? I know I haven't put a lot of detail into this, so if there's some questions that may help narrow down this issue, throw them at me.






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    Senior Member ol guy's Avatar
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    It would be good to see the primer tool you tried. If it did not have the bottom part of the distributor that controls oil flow. It would be a waste of time trying to get top end oil pressure. Not to mention the fact that it takes a bit more rpm to get to the top end that a starter will provide (depending on the pump) If you spin it with the dizzy out you will never get top end oil to the rockers.Jmlao. Mark

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    Some guy obnoxious001's Avatar
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    The priming tool must have a collar to direct flow to lifters, such as the one in the photo. I grabbed the first photo I could find.

    More importantly, you will have oil to the crank and bearings, and by pouring oil in the valley and putting some on the rockers, it should be ok to fire.

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    steelcomp was here
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    Sometimes it can take a long time to get oil to the top end when priming a new engine or one that has sat, especially with some brands of lifters. If you only primed for a minute or two, try it again, only give it some time. These guys are also correct in saying the priming tool needs the band around it to simulate the distributor, otherwise oil will never get to the lifter galleys and you should definitely have a pressure gauge on there when you prime.
    If God is your co-pilot, change seats!
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    I've rotated the engine alittle during priming, it seemed to help..and it takes several minutes to prime

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    Default Oil cooler???

    Quote Originally Posted by Gone Green View Post
    I've rotated the engine alittle during priming, it seemed to help..and it takes several minutes to prime
    Does this engine have an oil cooler attached to the block???

    Ray
    LOUD BOATS SAVE LIVES

  9. #7
    Seriously off center slowride's Avatar
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    Quote Originally Posted by obnoxious001 View Post
    The priming tool must have a collar to direct flow to lifters, such as the one in the photo. I grabbed the first photo I could find.

    More importantly, you will have oil to the crank and bearings, and by pouring oil in the valley and putting some on the rockers, it should be ok to fire.
    That's identical to the one I got. I think at this point I'll pull the distributor, put a mechanical gauge on it at the sender and spin it for a few minutes (again) with a drill motor. That's my biggest concern..... if I have oil to to the cam and crank I have no issue firing it to see if it pumps to the top end. I just don't want to fire it with the crank and cam dry after sitting for so long.






  10. #8
    Seriously off center slowride's Avatar
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    Quote Originally Posted by Moneypit View Post
    Does this engine have an oil cooler attached to the block???

    Ray
    No, just a remote adapter






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