honing a cylinder question

[timtim]

hello

i have a question about honing i have the "3 shoe" honing tool i read i want a 45 degress crosshatch so to get this would run it clockwise a couple of passes THEN counterclock wise a couple of passes iam understanding this right? of course with lots of oil


thanks

[cr480r]

shouldnt need to do any reversing.. the angle of the crosshatch comes from the speed that you raise and lower the hone in relation to the speed of the hone..

[timtim]

ahhh ok so just leave it going clockwise and watch my speed when i raise and lower it and the speed of the drill....does any one have any good pictures of a crosshatch that i can compare to ?

thanks

[timtim]

so that faster the drill speed is the faster you have to move in and out? or no?

[tri again]

You can test it in a soup can or something.

Use a variable speed drill and go kinda slow.
Those triple stone types can fly out and rip your hand apart so be careful.

They got dingleball hones now that are safer and easier to use but the triples were used forever.

You'll be ok . They really don't cut metal but more like break the glaze so the rings have a place to seat to.

Consider an 'X' is roughly 45 degrees and a '+' is 90 degrees.

so 1/2 of 90 is what you want.

Just make sure you check your ring gap.
Something like .010" for every inch of stroke and that the ring gaps do not line up.

Check the specs tho.

If it's a lay down engine, you'll obviously want the oil ring gap to be in the up 12 o'clock position.

[cr480r]

You can only move the drill up and down so fast and remain in control of your movements.. so you will probably need to slow the drill speed down to achieve the pattern you want. Is the engine a 2 stroke or 4? 2 strokes can be very tricky with a 3 stone... especially with short stones.. there is probably some good insructional videos on youtube. If you could get an approximate idea of the pace you will figure it out faster

[timtim]

its a 4 stoke good old atc 125m and the sevice manuals tells me to have to ring gaps 120 degress

[timtim]

i thought ya want a 45?

[cr480r]

120* refers to the stagger on the end gaps of the rings... thats got nothing to do with crosshatch pattern.. the pattern angle is dictated by the honing

[timtim]

ohh i thought you was taking about that

[timtim]

i should say that other guy was saying something about that

[cr480r]

Just make sure you check your ring gap.
Something like .010" for every inch of stroke and that the ring gaps do not line up..

.004" per inch of bore diameter will usually keep you safe

[timtim]

i think i know what u mean not sure tho can you explain more please?

[tri again]

I had the top of a piston come off..in an airplane engine at 1800 feet.

You need to set your rings inside the cylinder, press them in with the piston so they are in there square and check how far apart the ends of the rings are.

I guess .010" is more for car engines but check specs on the 'world class help' section here.

The ring gap is relative to cylinder bore like CR said. if it gets too tight when it gets hot, it can pull the top of the piston off, believe me.

Staggering the ring ends is just so oil can't really shoot up thru all the layers.

like CR said 120 is safe.

You orig question was about the cross hatch pattern. and that wants to be 45 degrees.

That youtube idea about cylinder hone is great!

You'll know exactly what to do in under 10 seconds.

[timtim]

ahhh ok i see what u mean thanks for explaining that