Thread: Timing Chain Lubrication
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06-15-2009 01:25 PM #1
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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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06-15-2009 03:44 PM #2
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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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06-15-2009 04:43 PM #3
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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
Last edited by pat mccarthy; 06-15-2009 at 04:46 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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06-15-2009 05:07 PM #4
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those plugs are available already drilled from Pioneer
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06-15-2009 05:34 PM #5
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well it give s me some thing to do jerry
Originally Posted by jerry clayton
and i can use the drill to drill out the stamp cup plugs
Last edited by pat mccarthy; 06-15-2009 at 05:38 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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06-15-2009 07:50 PM #6
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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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06-15-2009 08:16 PM #7
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no way on the drill EDM Originally Posted by jerry clayton
rods like this jerry
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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06-15-2009 08:43 PM #8
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they're nice pieces, huh???
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06-15-2009 08:44 PM #9
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seam to work well . use them ? Originally Posted by jerry clayton
Last edited by pat mccarthy; 06-15-2009 at 09:18 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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06-15-2009 09:38 PM #10
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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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06-15-2009 09:48 PM #11
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Last edited by pat mccarthy; 06-15-2009 at 09:50 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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Thank you Roger. .
Another little bird