Nope,... It'll be niether Round, nor True....

Hones are for dressing a cylinder,... Not Boring it....

 

i know my buddy grandpa gave that a try the pistons froze in the bore he had it the right size but it was at an angle machine shops do use a hone for the last few thousandths of in if you could keep the engine in a vise and a drill press and a lot of honeing pads and constant flow of oil it could be possable just would never try it my self or tell any one to try it

 

Yes I've done it so many times when it impossible to bore the block out .008 to clean it up when the hone will follow the wear in the blocks. But you have to buy custom pistons and that is expenseive.

 

If you get a good adjustable hone you can set the tension and size on you can do it. the hone will cost you about the same as getting it done at a machine shop though. The hones you are talking about will nat make the bore round as said before.

 

There is a type of hone (Sunnen) that it CAN be done with. This is an expensive tool used in some machine shops. A regular honing son though I dont think it can be done. Ive hogged out a cyl.to .010 over with this type (sunnen) hone and used a bore guage to check it.

 

well then its very obvious i shouldnt try it :nono: off to get an estimate or find a new jug that may work better.

 

what are you trying to bore any how how many cyl

 

The last cylinder I had bored was about 2 years ago on a 660 Raptor. I had it bored .040 and it cost $40.00 so it was about 10 bucks per .010 at an "automotive machine shop". If you take it to an ATV dealer expect to pay at least twice that. Any good auto machine shop can do it, you don't have to have the dealer do it.

 

That reminds me how I used to make fun of the fools I used to work with when they would pay 200 bucks to get 2 cylinders bored in there harley`s, I told them they were crazy to pay that, when a regular machine shop could do it, and they would all say "no! it`s a harley! it`s gotta be done by harley!" and I would say "did the dealer tell you that? and you believed it?"
The real kicker was we worked in a massive machine shop with CNC machines everywhere and used all kinds of different steels and the machine didn`t care what kind it was as long as it was set up correctly, same thing I tried to tell them. So I would add more fuel to the fire by saying "oh yeah harley uses premium materials that can only be bored on harley machines"

 

That reminds me how I used to make fun of the fools I used to work with when they would pay 200 bucks to get 2 cylinders bored in there harley`s, I told them they were crazy to pay that, when a regular machine shop could do it, and they would all say "no! it`s a harley! it`s gotta be done by harley!" and I would say "did the dealer tell you that? and you believed it?"
The real kicker was we worked in a massive machine shop with CNC machines everywhere and used all kinds of different steels and the machine didn`t care what kind it was as long as it was set up correctly, same thing I tried to tell them. So I would add more fuel to the fire by saying "oh yeah harley uses premium materials that can only be bored on harley machines"

Yeah thats just the dealer price I guess. This was on a Yamaha and the dealer wanted like close to 100 bucks to bore it then he said he could'nt bore it that size because of their policy. I think that stemmed because I bought the piston somewhere else and they were'nt going to get anything but labor cost out of the deal.

 

You can't do it with the dingle ball hone or the springy 3 stone hone, you need the heavy duty adjustable 4 stone hone with coarse stones to rough it out and then the regular ones to finish. In your case you're bore is not beyond spec yet so stay standard for now!

 

my machine wont do it i have no way to hold or aline th jug so there may be some truth to the harly story

 

As the title states I looking to find out if it's relativly posible to accomplish a .010" increace in bore size with a hone, either a three stone or "dingle berry", cant rember the real name, type hones. I am working on an ATV engine and am debating buying a standard size or .010" piston. Currently my cylinder is 3.348" and the spec 3.3465"-3.3468" with a limit of 3.350". The spec for piston to clylinder clearance is .0006" to .0020" with a limit of .004" Currently mine is .003" So if i buy a .010" piston can I possibly make my bore 3.358" Thanks a ton Sean.

Yes it can be done, but it isn't a precision process. The problem is ending up with a cylinder that's actually and uniformly round at all points from top to bottom. Plus keeping the walls straight in the vertical plane so that the diameter is consistent from top to bottom. The process of honing tends to concentrate effort in the center of the bore length, when placing a straight edge top to bottom, it's common to see the center has a larger diameter than the ends. The other common error is to make a cone shaped bore where the top or the bottom is larger than the opposite end. These are bigger problems with hand held hones, the abrasive brush being worse at this than the ridged hone, but the cheap three segment hone is next to useless at making any control improvement over a brush. To do a credible job you need a 5 segment hone which isn't cheap, see Lisle 15000 here http://www.sjdiscounttools.com/lis15000.html it costs about 10 times as much as the parts store variety.

All in all boring and prepping cylinders is an activity better left to professionals, who actually do it for a pretty nominal cost considering the investment in equipment, training, and experience.



Bogie