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#1 |
Senior Member
Join Date: Jun 2005
Posts: 663
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What kind of fine stone should be used? Old school ring package with Speed-Pro
BR-18PF top...RBT-10 second...and SS-50U oil...on a 283 Chevy... Any thoughts on how a Rottler HM-series machine compares to a Sunnen CK-10... assuming BOTH being operated by very experienced machinists? |
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#2 |
Senior Member
Join Date: Jun 2005
Posts: 663
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Almost forgot...top ring is a plasma-moly.... One last question...is the Plateau finish
technique desireable for this particular combo? |
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#3 |
Member
Join Date: Sep 2011
Location: Stuttgart, AR
Posts: 125
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The Rottler HM is not an automatic cylinder hone. It is dependent on the operator for the stroking. This makes it much more operator dependent on quality. A CK-10 is automatic, it gives you perfect stroking speed every time, no matter how dumb you are. And it has automatic feed with a load meter to keep your stone load consistent. A good man on a HM could do it, but he would have to be a man that has bonded with his HM. Everybody recommends a plateau finish now a days. The Speed Pro targets for Ra, Rz, Rpk and Rvk are easily achievable assuming your man has a profilometer. They will go nearly to size with 280 and then give it some 400 to knock off the peaks and give it the plateau.
Last edited by rickseeman; 05-07-2014 at 12:51 PM. |
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#4 |
Member
Join Date: Feb 2007
Location: NORTHEAST
Posts: 287
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Here is the honing procedure I use a good hone is a must.
I use a lot softer stones then most guys honing out there, The biggest trick to honing is to use the least amount of pressure to get the job done which reduces the heat build up and the other advantage is less cylinder flexing with less feed pressure. The last .004 I use the 412 stones in and take out .001 at a time to keep the heat to a minimum the last .001 I go to the 512 stones down to the .0005 the last .0005 I go to the 623 stone. To plateau hone I use the C30-CO3-81 stone on OEM blocks I use 4 strokes and the harder blocks I go 6 strokes. Different blocks may require different feed pressures for the proper finish. I build a lot of endurance engines (circle track) and a 400 finish does not work very well in these applications as some engines now I don't see for 2 or three years. Been over my honing procedure with Matt at Total seal he says its spot on. So far never had any complaints with what I have sent out the door for cylinder wall finish and its been tested many years now and proven. I really enjoy when guys tell me they can do the same thing with there servo quip hones ![]() Here is a thread from another site on plate honing you can see the shadows und the bolt holes and the cylinders measured .004 distortion. Quote:
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