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Old 08-25-2010, 03:28:38 PM   #1
BondoSpecial
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Can I use my 320 grit brush hone for cast rings or must I use 180/220

I have 2 hones - a 220 grit 3 stone hone and a 320 grit BRM brush hone. I am going to assemble a recently 30 over block with new rings and I keep reading that cast rings can "tolerate" a rougher hone grit but does that mean that I CAN'T hone them with the 320 grit brush hone? Do they need the rougher finish or is it just a time and cost saving option to not finish them as fine? I like the finish I get with the brush hone better than the stone hone

(pic of 320 BRM brush honed cylinder I did)



I can buy another brush hone @ coarser grit but just wanted to know if there would be any harm in honing @ 320 for cast iron rings

Thanks

Steve
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Last edited by BondoSpecial : 08-26-2010 at 03:33:23 PM.
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Old 09-02-2010, 06:49:23 PM   #2
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anybody?
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Old 09-02-2010, 07:46:49 PM   #3
frankz
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Are you asking about rebuilder grade rings w/o moly or chrome?
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Old 09-02-2010, 08:08:43 PM   #4
Damon
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What you got there looks fine for just about any typical set of rings. You just don't want it perfectly smooth or there's nowhere for oil to grab onto to the bore to keep the rings lubricated.
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Old 09-02-2010, 08:56:41 PM   #5
BondoSpecial
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I am asking about for plain cast, non plated rings (I would only use moly with a fresh bore)
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