BBC Gen4 Oil System
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BBC Gen4 Oil System

  1. #1
    I'm No Expert Shaun's Avatar
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    The oil priming thread has got me thinking.. i've though about this before, even did some quick googling but never really found anything. The oil system of a BBC is not somthing thats really talked about much here. Does anybody have pictures or diagrams of how the oil system on a BBC is setup. I would like to find out, where oil flows, how it flows, what areas get oil first, how the oil gets to those areas... basically discuess how every part gets oiled!

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    Senior Member GT Jets's Avatar
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    Quote Originally Posted by Shaun View Post
    The oil priming thread has got me thinking.. i've though about this before, even did some quick googling but never really found anything. The oil system of a BBC is not somthing thats really talked about much here. Does anybody have pictures or diagrams of how the oil system on a BBC is setup. I would like to find out, where oil flows, how it flows, what areas get oil first, how the oil gets to those areas... basically discuess how every part gets oiled!
    Super simple, rear main first, front cam bearing last, the oil galley is where it all takes place, there are holes all the way down the block and it "tree branches" off from the rear of the engine forward, the lifter bores get the leftovers from the cam bearings...Big block Ford are the exact opposite...

    edit: I guess to expand on it...pump pick up, pump, oil filter, rear main and rear cam bearing, then goes rods /lifters mains cam, rods /lifters and so on...

    GT
    Last edited by GT Jets; 03-07-2009 at 11:10 AM.
    GT


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    Senior Member H20MOFO's Avatar
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    I've always been confused, if the first place the oil goes on a mark iv motor, is into the mains/crank, how is that not considered a "mains priority oiling system?"
    How is a gen 5 or six different? And what mods(besides a better pan,dry sump) can be done to improve the mark 4? I've heard of pipe cleaners in the pushrods, is that worth while? I guess the idea there is less oil to the top means more to the bottom?
    Another Hot Boat refugee

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    Quote Originally Posted by H20MOFO View Post
    I've always been confused, if the first place the oil goes on a mark iv motor, is into the mains/crank, how is that not considered a "mains priority oiling system?"
    How is a gen 5 or six different? And what mods(besides a better pan,dry sump) can be done to improve the mark 4? I've heard of pipe cleaners in the pushrods, is that worth while? I guess the idea there is less oil to the top means more to the bottom?
    I use the restricters (.060) in the rear of the lifter galleries. (they take the place of the NPT plugs in the back of the motor) For balls out racing, they work. DO NOT use them with Hyd lifters, or engines that idle a lot...............Ray
    LOUD BOATS SAVE LIVES

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    I'm No Expert Shaun's Avatar
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    Quote Originally Posted by Moneypit View Post
    I use the restricters (.060) in the rear of the lifter galleries. (they take the place of the NPT plugs in the back of the motor) For balls out racing, they work. DO NOT use them with Hyd lifters, or engines that idle a lot...............Ray
    Can you post pics?

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    Senior Member H20MOFO's Avatar
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    Quote Originally Posted by Shaun View Post
    Can you post pics?
    X2 .. and what if you have hippos??
    Last edited by H20MOFO; 03-08-2009 at 07:55 PM.
    Another Hot Boat refugee

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    Quote Originally Posted by Shaun View Post
    Can you post pics?
    Look in Jegs or Summit catalogs under restrictors..........Ray
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