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62hypapak
PostPosted: Mon Nov 15, 2010 2:11 am 
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Joined: Tue Dec 04, 2007 1:37 pm
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so which one is for each application??
whats the difference?
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66aCUDA
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PostPosted: Mon Nov 15, 2010 5:50 am 
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Location: East Arkansas
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Bronze one was for the Aussie "Hemi" six. Iron only for the slant.
As far as I know.
Frank

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73 Duster - Race Car
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Doc
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PostPosted: Mon Nov 15, 2010 9:24 am 
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Joined: Mon Oct 14, 2002 4:32 pm
Posts: 4880
Location: Working in Silicon Valley, USA
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I made-up a batch of bronze (really a nickel-bronze alloy) SL6 oil pump gears for use with steel camshafts. (roller cam applications)
An iron gear wears-out fast when use with a steel cam.
I also heat treat (carborize) the factory cast iron gears to give them a harder "skin". (case hardening)
DD
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62hypapak
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PostPosted: Tue Nov 16, 2010 4:39 am 
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TBI Slant 6

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Would you recommend getting the stock gear hardened and pressing it on a key way melling kit, is this bad practice? Or get the key way gear case hardened?
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66aCUDA
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PostPosted: Tue Nov 16, 2010 6:01 am 
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Joined: Sun Jul 30, 2006 8:36 pm
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Location: East Arkansas
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Quote:
I made-up a batch of bronze (really a nickel-bronze alloy) SL6 oil pump gears for use with steel camshafts. (roller cam applications)
An iron gear wears-out fast when use with a steel cam.
I also heat treat (carborize) the factory cast iron gears to give them a harder "skin". (case hardening)
DD
Ahh ok didnt know your made a batch Doug.
Frank

_________________
Scrapple: Because a mind is a terrible thing to waste.
73 Duster - Race Car
66 Dart Wagon - DD
178" FED
82 D150
All Slant powered
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Doc
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PostPosted: Tue Nov 16, 2010 10:32 am 
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Joined: Mon Oct 14, 2002 4:32 pm
Posts: 4880
Location: Working in Silicon Valley, USA
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Quote:
Would you recommend getting the stock gear hardened and pressing it on a key way melling kit, is this bad practice? Or get the key way gear case hardened?
Either way works better then using the gear that came on the new Melling pump.
I can provide both types of gear, if needed.
(Heat treated factory or aftermarket gears, with a keyway slot)
DD
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