Priming an engine after sitting empty all winter?
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Priming an engine after sitting empty all winter?

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    Senior Member Delemorte's Avatar
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    Default Priming an engine after sitting empty all winter?

    Do i need to worry about it? I pulled my motor 3 months ago and drained all the fluids while i worked on my enterior.. Im about to throw it back in the boat and fill it all back up. Should i take any special precautions?
    Quote Originally Posted by jetboatperformance View Post
    the ensueing fire would likely be extinguished by the sinking however

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    Quote Originally Posted by Delemorte View Post
    Do i need to worry about it? I pulled my motor 3 months ago and drained all the fluids while i worked on my enterior.. Im about to throw it back in the boat and fill it all back up. Should i take any special precautions?
    IMO, i would prime the motor to make sure the lifters & everything else has/gets oil...only takes a few minutes & better to be safe than sorry!

    FastRat

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    I'm No Expert Shaun's Avatar
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    if it was me, i would prime it, why not, easy to do. I'm no expert, just my opinon.

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    Senior Member Delemorte's Avatar
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    excellent. thats what i needed to know...


    Now.. How does one prime the engine...? Im assuming you yank the dizzy and use a drill some how.. What i dont understand is how you engage that pump? is there a special tool?
    Quote Originally Posted by jetboatperformance View Post
    the ensueing fire would likely be extinguished by the sinking however

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    Senior Member H20MOFO's Avatar
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    There is probably better ways but I'm lazy, I just unhook the the ign. wire and crank it until the oil pres. gauge moves.
    Another Hot Boat refugee

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    And pull the plugs. That way theres no pressure on the bearings and it spins easier and faster.

    Delemorte You can make a tool out of an old dizzy. Just remove every thing on top, rotor, points/reluctor, advance mech, and put a hose clamp on it so the shaft doesn't fall out. Then put it in the engine, hook a drill to it and pump it up. I usually turn the engine over by hand as the drill spins the pump.

    Tim

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    I'm No Expert Shaun's Avatar
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    Buy the tool, it's like $20 bucks max and you can find them cheaper than that. Pull the diz, slide the tool into the dizz hole and hook up your drill. Your oil pump shaft is spun by the distributor, this tool reaches down and grabs the oil pump shaft and spins it.

    I dont know about the whole pulling the plugs and ignition method. sure there's not alot of load on the main/rod bearings but still why... what about the cyl walls and the rings scrapin down them... And unless you have hyd lifters the pressure of the valve train is still pressin up against the valves, rockers, lifters and cam! I prime the shit out of mine, i can pretty much kill a cordless drill battery with a prime


    http://store.summitracing.com/partde...6&autoview=sku

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    I'm No Expert Shaun's Avatar
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    Quote Originally Posted by H20MOFO View Post
    There is probably better ways but I'm lazy, I just unhook the the ign. wire and crank it until the oil pres. gauge moves.
    Is this somthing you do after it sits a long time or before every use? This method sounds good for when you say havnt ran the engine in a few weeks just to ensure oil pressure at fire. How long before you see oil pressure when cranking?

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    21 Daytona Outlaw's Avatar
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    Don't make this more difficult than it is.....
    pull the plugs, disconnect the power to the distributor or battery side of coil and spin the engine over with the starter until you get oil pressure.

    because like River Rat said, the engine must be rotated while the oil is flowing. then you have to set the timing and if you have a ford
    you take the chance of dropping the oil pump drive
    #55

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    Quote Originally Posted by Shaun View Post

    I didnt know about the whole pulling the plugs and ignition method. sure there's not alot of load on the main/rod bearings but still why... what about the cyl walls and the rings scraping down them...
    if you do a normal winterizing of your boat/watercraft
    you would have pulled the plugs and squirted a little top end lube
    in the cylinders and rolled it over a few times already when you changed the oil and filter after the season.

    come spring time roll the engine over a few time to get oil pressure
    and install plugs, good to go...
    #55

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    Senior Member H20MOFO's Avatar
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    Quote Originally Posted by Shaun View Post
    Is this somthing you do after it sits a long time or before every use? This method sounds good for when you say havnt ran the engine in a few weeks just to ensure oil pressure at fire. How long before you see oil pressure when cranking?
    I like to see the gauge move before it fires if it's sat even overnight.
    Last edited by H20MOFO; 03-06-2009 at 04:05 PM.
    Another Hot Boat refugee

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    gn7
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    I'm No Expert Shaun's Avatar
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    Quote Originally Posted by Outlaw View Post
    if you do a normal winterizing of your boat/watercraft
    Whats this winter that you speak of You mean you dont run your boat all year round?


    Quote Originally Posted by H20MOFO View Post
    I like to see the gauge move before it fires if it's sat even overnight.
    Agree with you there, another good reason why i'm moving from a key'd ignition to a seperated switch system.

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    I'm No Expert Shaun's Avatar
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    Quote Originally Posted by gn7 View Post
    What? You guys aren't running one of these? Shame on you all!

    http://store.summitracing.com/partde...5&autoview=sku

    i always see those in the mags, just never seen one on anything

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