Oiling problem

Discussion in 'InsideTopAlcohol.com Tech Questions' started by quickcut, Aug 24, 2019.

  1. quickcut

    quickcut Member

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    Need some ideas where to start looking.
    Have a new build with a oiling problem
    I have very little oil coming up to the heads. Not enough.
    Bae hemi billet block.
    I have used 2 different oil pumps with up to 130 pounds
    I am just about to pull the cam & start looking there.
    Any where else I should be looking as well
     
    #1
    Unforgiven likes this.
  2. Nitro Diver

    Nitro Diver Member

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    I've found opening up the groove in the cam journal helps, depending on the thickness of the torrington bearing behind the cam gear sometimes the Grove doesn't line up with the hole in the bearing and restricts oil flow
     
    #2
  3. hydrotherapy

    hydrotherapy Member

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    Restricters in the block what size are the holes
     
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  4. quickcut

    quickcut Member

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    pull the cam today & check the holes In the bearing to the holes to the heads all good there so. dropped the sump & put the pick line in a bucket & spun it over it was like a fountain out of the cam bearings.
    Measured the grove in the cam to the holes in the cam bearing today they are pretty close. put the cam in spun it again still very little oil up to the top of the block moved the cam whilst rotating the cam it was better & pulsating but still not great.
    going to try opening up the cam grove by 15 to 20 thou ??
    Input ??????????????
     
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  5. jay70cuda

    jay70cuda Active Member

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    Has the block been repaired? I ran into a repair that welded over half the hole and needed cleaned out.
     
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  6. altered8

    altered8 Member

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    Blow air back down from the rocker feed to the cam journal as restrictor jets maybe blocked. I never use this feed anyway , what heads are you running? Just run a feed from Davenport plate on oil pump or tee piece from rear oil passage direct to heads.
     
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  7. quickcut

    quickcut Member

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    yes block has been repaired & cleaned . No restrictors .Air has been blowen through everthing.
     
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  8. Will Hanna

    Will Hanna We put the 'inside' in Top Alcohol
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    I have always preferred to block the cam feed off and external feed the top. Gives priority feed up top.
     
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  9. Nitro Diver

    Nitro Diver Member

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    Fro memory the last one I did I went from .060 to .120 taking .030 from each side.
     
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  10. quickcut

    quickcut Member

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    Will,
    Have opened the cam up. If that doesn't work.
    I can feed from the back of the block, But where do I run it to?
    Make a Spray bar ?
     
    #10
  11. altered8

    altered8 Member

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    What heads are you running? You can tap into the rocker feed in the front of the head and run a dash 4 or 6 to each one from oil pump or rear of block
     
    #11
  12. quickcut

    quickcut Member

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    Heads Are Stage 3 AJPE Ex top fuel 1.75 ratio stage 5 BAE intake rockers
    Fired motor again today & burnt 4 intakes on the right hand side
    Dose anyone have & pictures of Rocker feeds etc. Can you email me info@quickcutconcrete.com.au
     
    #12
  13. altered8

    altered8 Member

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    Email sent
     
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  14. Luke G

    Luke G New Member

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    If you can prime the system with an accumulator you can work backwards until you find oil. It pays to do this with the manifold off to check for leaks from the head gasket back into the valley, also double check all the simple mistakes that I usually make like head gasket backwards, rocker shaft upside down, rocker stand in the wrong location, also if you have 9/16 head studs make sure you have enough clearance for the oil to flow up to the rocker stand.
     
    #14
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