engine breather question
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engine breather question

  1. #1
    77 sleek. corbin5754's Avatar
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    Default engine breather question

    Can I put breathers on both valve covers or do I need a PCV valve setup on my bbf.

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    Senior Member rpm0414's Avatar
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    I just went thru this problem. Got rid of PCV and went to breathers on both covers.

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    77 sleek. corbin5754's Avatar
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    Quote Originally Posted by rpm0414 View Post
    I just went thru this problem. Got rid of PCV and went to breathers on both covers.
    Cool so I'm taking it, it will be fine if I do the same.

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    Senior Member Jake's Avatar
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    Quote Originally Posted by corbin5754 View Post
    Cool so I'm taking it, it will be fine if I do the same.

    If the breathers spew oil add a puke tank.

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    dual breathers here... mooneyes makes some nice ones.

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    Member 77CenturionJet's Avatar
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    Make sure your valve covers have baffles or they will spew oil

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    Quote Originally Posted by 77CenturionJet View Post
    Make sure your valve covers have baffles or they will spew oil
    no oil spewing here. if you have oil spewing out of your breathers you have bigger problems than baffles...

  10. #8
    Senior Member Uncle Dave's Avatar
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    mmmnot so sure about fords, per se,

    - but I can say I've been running speedway (dual breather) valve covers for some time now because I was weeping out of a single breather, and going to twins fixed it.

    It started when I wrung out the setup a bit more from flat tappett to a hot hydraulic and did a bit of porting work. Seems to create more crankcase pressure and one hole per cover had a weep- the Duals work perfect neither arent even moist. Dont need a spew tank.

    There is nothing remotely wrong with my mill.


    Uncle Dave
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    Last edited by Uncle Dave; 08-03-2012 at 03:29 PM.

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    Senior Member SBjet's Avatar
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    No fag jokes from the old HB crowd?
    Quote Originally Posted by Tom Brown View Post
    I'm still chuckling at being "poo-pooed" for straying off topic. Awesome.

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    Senior Member Jake's Avatar
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    Quote Originally Posted by ka0tyk View Post
    no oil spewing here. if you have oil spewing out of your breathers you have bigger problems than baffles...


    if the motor is blown, it is common.

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    Quote Originally Posted by Jake View Post
    if the motor is blown, it is common.
    Thats true all my blown motors have catch tanks for breathers an i have to drain it every once an awhile

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    Senior Member Bubbletop409's Avatar
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    I think the location of the breather on the VC could be part of the problem also. On a BBC with a normal valve train layout the pushrods are aiming oil at the area where the breather is positioned, even with an engine that has very little blowby I can see where this would add to the seepage problem. On my 565 when it came time to mount the breathers I located them on the vertical surface of the VC near the intake manifold and out of the area where oil is being directed to spray in the area of the breather. Four years and 50+ hours and not a hint of mist let alone a mess.
    Larry

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    Senior Member jamesblown97's Avatar
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    i run dual breathers and no pcv on mine with no issues

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    Quote Originally Posted by neil450 View Post
    Thats true all my blown motors have catch tanks for breathers an i have to drain it every once an awhile
    sounds like i need to get me one of those to make sure my breathers are working properly.

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