irishone

Quote, originally posted by sharkcohen »
I think you people can't read, the Helm uses the terms 'hone' and 'bore' distinctly.
page 7-17 Cylinder Block Inspection: If the measurements are beyond the Oversize Bore Service Limit, replace the block. If the block is to be rebored, refer to Pison Clearance Inspection after reboring.

page 7-18 Cylinder Block Bore Honing: This cylinder linder uses FRM. Hone only as directed below. Measure the cylinder bores. If the block is to be reused, hone the cylinders and remeasure the bores. To hone the cylinder bores (honing procedure details here). If scoring or scratches are still present in the cylinder bores after honing to the service limit (service limit: 3.4279", page 7-17, Cylinder Bore Size), rebore the cylinder block. (page 7-17, Cylinder Bore Size, Oversize: 3.4350-3.4354", Reboring Limit: 0.010" max).

The writers of the Helm manual seem to understand the technical aspects of the terms bore and hone just fine.


Modified by sharkcohen at 8:06 PM 2/22/2005

Quote, originally posted by 96SR-V »
This info would be good to bring to a machine shop so that they know what there dealing with. Honing process is important so if u need to do it, do it right. This is word for word Honda service bullitin. Hope its of use.
Don't let any Joe work on FRM sleeves, they should know what there doing.

SB618958 #18939

1990-2001 Prelude – Honing Fiber Reinforced Metal (FRM) cylinders 2000-01 S2000

All S2000 and 1990 and later VTEC and SI Preludes have Fiber-Reinforced Metal (FRM) cylinder liners. FRM honing is not required unless the cylinder has deep vertical scratches that run the length of the bore. Cylinders with light colored spots or flaking cannot be corrected by honing and must be replaced.

To hone FRM liners, perform the following:
· Use a rigid hone (not a ball hone) with GC-600-J or finer stones for nonferrous
metals. The honing pressure should be 200-300 kPa (2-3 kg-cm2, 29-43 psi).
· Use an oil type honing oil.
· Hone at 45-50 rpm to a 60 degree-crosshatch pattern.
· Do not stroke the hone more than 20 cycles.
· After honing, thoroughly clean the engine block of all metal particles by
washing with hot soapy water, then dry and oil them immediately. Never use
solvent; it will only redistribute the grit.
· Some light vertical scoring and scratching is acceptable if it isn’t deep enough
to catch your fingernail, and doesn’t run the full length of the bore. (rm,sn)


Those to qoutes were pulled from the prelude forum. Everyone seems to be agreeing with both of them. So what's the deal, you have to obviously bore to get .25 over. But what tool would the machine shop have to use to bore. You guys never gave the answer to that. Just what kind of stones and the specs on how to use it to hone. I ask this because I want to make sure the machine shop has the RIGHT stuff to do this. Also, if any of you guys have a recomended machine shop in the New York area I'm all ears. Thanks in advance-Eric

irishone

ya know, i post a damn good TECH question AND I searched and I can't get an answer?

irishone

up b/c i'm beating my head against a wall trying to figure this out.