Hone grit

[jamie2370]

Having a convo with another person as they were asking about dingleberry hone grit. He said someone told him to use an 800 grit ball hone. Seemed to fine to me. I would normally use a 400 on our bracket motors. What's yalls opinion on the 800? Assume moly or latest tech total seal rings

[richie 2]

good question. I sometimes wonder if the 400 grt. even seals a std. moly ring street motor? who sells the 800?

[Alan Roehrich]

You'd panic then when the tech guys at Total Seal suggested finishing with 1000 grit levigated aluminum, counterclockwise for five strokes.

[BLKCAM]

Ok, I'll bite Alan, counter clockwise? what application was this on?

[Hacksaw]

Port side boat

[jamie2370]

Originally Posted by Alan Roehrich

You'd panic then when the tech guys at Total Seal suggested finishing with 1000 grit levigated aluminum, counterclockwise for five strokes.

Alan, if that's what they recommend then I would do 1000. I have been taught if it's too slick the rings wont seal. 400 works great on a bracket motor with no risk of a ring not sealing. I've never used anything finer but I know on a stocker motor that a ring combo can make or break you. That's why I asked.

[SSDiv6]

Like Alan said, call Total Seal and speak to Keith.
Piston ring material and technology has changed drastically.
We are no longer in the era of breaking-in Chrome rings.

[richie 2]

can someone reasure me please (because ive never deglazed, usually hone .0005" out of the block)....sbc bracket motor, 400 grit deglazing balls provides suffenent finish for sealed/power plasma ring set?

[Rob Wright]

Originally Posted by jamie2370

Having a convo with another person as they were asking about dingleberry hone grit. He said someone told him to use an 800 grit ball hone. Seemed to fine to me. I would normally use a 400 on our bracket motors. What's yalls opinion on the 800? Assume moly or latest tech total seal rings

If you're working with a harder block, you will want to use a silicon carbide abrasive. By numbers, a 400-grit Flex Hone will deliver rpk of 8-12, RK of 18-22, and rvk of 28-32 on harder blocks / sleeves.

This is what I've seen with my Mitutoyo SJ-210 profilometer after doing 20-ish strokes in clockwise direction, and 5-ish strokes counter-clockwise, with 400 grit silicon carbide hone, on Darton sleeves. In other words, excellent results.

Mileage may vary.