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Thread: Timing Chain Lubrication
          
   
   

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  1. 06-15-2009 12:25 PM #1
    Rick Rush
    Rick Rush is offline CHR Member
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    Timing Chain Lubrication

     



    I'm going to put a new timing chain in my sbc 350. In looking at all the timing chain set-ups out there, I noticed some of the cam gears are solid (no holes around the circle) and some have 6 or 8 holes drilled in them. Where does the oil come from that lubes the timing gears and chain. Is it pumped out from behind the cam gear or slings up from an oil hole in the crank. If it's pumped from behind the cam gear wouldn't it be better to get a timing chain with holes in the cam gear so the oil would run down the front side and lube the chain and crank sprocket. Just wondering. I know alot about engines just not how all the oil is pumped around to all the places. Thanks:
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  3. 06-15-2009 02:44 PM #2
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    HWORRELL
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    Timing gear is oiled by splash/drainback from the lifter valley. Been that way on every small block chebby ever made so it must be sufficient.
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  4. 06-15-2009 03:43 PM #3
    pat mccarthy's Avatar
    pat mccarthy
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    some guys kill two birds with one stone .if you drill the galley plugs keep air lock out and oils the chain
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    Last edited by pat mccarthy; 06-15-2009 at 03:46 PM.
    Irish Diplomacy ..the ability to tell someone to go to Hell ,,So that they will look forward to to the trip
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  5. 06-15-2009 04:07 PM #4
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    jerry clayton
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    those plugs are available already drilled from Pioneer
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  6. 06-15-2009 04:34 PM #5
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    pat mccarthy
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    Quote Originally Posted by jerry clayton View Post
    those plugs are available already drilled from Pioneer
    well it give s me some thing to do jerry and i can use the drill to drill out the stamp cup plugs
    Last edited by pat mccarthy; 06-15-2009 at 04:38 PM.
    Irish Diplomacy ..the ability to tell someone to go to Hell ,,So that they will look forward to to the trip
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  7. 06-15-2009 06:50 PM #6
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    jerry clayton
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    wait till you decide to drill one of them rods to oil those bushings up the center!!!!!!
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  8. 06-15-2009 07:16 PM #7
    pat mccarthy's Avatar
    pat mccarthy
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    Quote Originally Posted by jerry clayton View Post
    wait till you decide to drill one of them rods to oil those bushings up the center!!!!!!
    no way on the drill EDM rods like this jerry
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    Irish Diplomacy ..the ability to tell someone to go to Hell ,,So that they will look forward to to the trip
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  9. 06-15-2009 07:43 PM #8
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    they're nice pieces, huh???
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  10. 06-15-2009 07:44 PM #9
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    Quote Originally Posted by jerry clayton View Post
    they're nice pieces, huh???
    seam to work well . use them ?
    Last edited by pat mccarthy; 06-15-2009 at 08:18 PM.
    Irish Diplomacy ..the ability to tell someone to go to Hell ,,So that they will look forward to to the trip
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  11. 06-15-2009 08:38 PM #10
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    jerry clayton
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    no but have done several squirters---altho it comes from the mains it leaves the oil on the rod journal for the rod bearing until it slings out and then we'll use 2 holes at lower side of wrist pin and some bigger clearances--well not big clearance but it seems all the stuff comes pretty tight so we open them up to our specs
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  12. 06-15-2009 08:48 PM #11
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    pat mccarthy
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    i had some bbc that had that done off the mains with the screw in jets.help keeps some oil on the under sides of the pistons to help cool as well .the rods in photo shoot oil up the rod in to the pin nice .just have to ball mill the uppers for the oiler pee hole
    Last edited by pat mccarthy; 06-15-2009 at 08:50 PM.
    Irish Diplomacy ..the ability to tell someone to go to Hell ,,So that they will look forward to to the trip
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