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alniki alniki is offline
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Join Date: Feb 2007
Location: Taipei, Taiwan
Posts: 332
Scotchbriting cylinders? Please see pictures.

Picture one: from a used set said to have less than 10k miles after rebuild.


Picture 2: from my original broken engine, with less marked/dense cross hatch pattern.


Questions:
1. Is the first one over-honed?
2. Do I need to Scotchbrite both or just the second one?

I've test-treat a crap cylinder with degreaser, 3M pad/hot soap water as suggested in the excellent thread Do I need to hone this? but cannot see much difference after the Scotchbriting? The 3M pad I used is Maroon in color and is the only one I can find locally that looks similar to the red 7447 recommended. It feels pretty coarse when dry but soft after soaked in hot soap water. What should I expect to see after scotchbriting the cylinder? Thanks a lot!

Picture 3: 3M pad

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'87 3.2 Targa

Last edited by alniki; 09-26-2009 at 06:39 PM..
Old 09-26-2009, 06:36 PM
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