How good is factory chain?

[treeclimber165]

Yeah, it's down to about 50* already and I'm in full sweats and hunting socks.

You guys done looking at pictures yet? My dial-up modem is smoking!

 

[kdhotsaw2]

chain tests

hello doug,
the question you posted is a interesting one. i thought i'd run a little test. first I cut with a new carlton a-2 full comp square ground chain. then i sharpened it on my square grinder and removed the gullets and cut with it, then I sharpened it on my round grinder and cut with it. I made 3 cuts with each grind and averaged the times with all three grindings.. the results will suprise you.
I cut a 15 inch wet pine and used a completely stock 385 husky with a 7 pin sprocket. no mods to the engine. the results are as follows

new stock carlton a-2 8.44 seconds

fresh square ground a-2 5.59 seconds

round ground a-2 7.12 seconds

I didnt expect to see that much of a change, especially with the round grind but those are the cutting times. when you come out in march we will have to get art to help you with your filing. can't have you running down to home depot or lowes to get your chain sharpened. there is a fellow named gypo just north of toronto that is supposed to be fairly adept at both round and square grinding. his name is little leroy lambert, you might want to call him
ken
[email protected]

 

[Grateful11]

>Grateful, forgive Brian, he gets cranky when the temps drop into the 60's at night.

That's all right we all get cranky sometimes. I used to like cold weather but the older I get......
It's 27 here now and they're calling for 2-6" of snow tomorrow night, yuck! I still haven't made a dent in Dec's Ice Storm damage. What type pics do you have Brian?
Grateful

 

[Fish]

Don't send them to Grateful, they constitute a felony in the
Carolinas.
However, keep sending them to me, I am a lonely, bitter, old,
fat man, and need such images to get me to spring. I have to move to Fla. soon, as this cold is getting real old.

 

[dbabcock]

That is interesting, Ken. Sorry I took so long to get back to your post, but I had to wade through a bunch of Fish milt to get to it. I'll call you tomorrow and then we can discuss your tests in more detail.

 

[Gypo Logger]

Its ok Doug, I will call and give you the details. Robert called me after talking to Dennis, who already talked to Ken about it.
John

 

[Gypo Logger]

Ken, those are some pretty good differences between the chains. It just goes to show that few would notice the difference between properly filed round and square unless racing.
Send that round ground out to me and I will give it the 90 second tickle, which will probably drop the time by .5 sec.
Lil Leroy

 

[treeclimber165]

LMAO Doug! I find it funny that someone took YOUR thread off topic! I'm probably more guilty than Fish, though.

KD- thanks for the test and results. I'm not surprised by the square filed results, but I'm encouraged that a round filed chain beat a factory square file edge. In the last year I've noticed faster and easier cutting with my filed chain than with a new untouched chain. Mostly due to what I've read and seen here and some practice. All the pics posted by JL and others have confirmed that I'm doing it close to right. Maybe one day I'll try some square filed chain.

 

[dbabcock]

It's of no consequence to me, Brian. I just wanted to egg Fish on.
If I dish it out, I sure as sh!t better be able to take it. Have at it!

 

[Fish]

What's Fish milt mean? You starting something?
I don't need no trouble from any uppitty college yankees!

 

[Fish]

Doug,
your last 2 posts refer to milt and eggs, are you in heat?
You folk that live above the arctic circle are weird, at least
Brian sends good photos.

 

[Gypo Logger]

Hey Doug, your not beatin up on my pal Fish are you?
Want me to come over there and speed bag ya!
Eldorito Kid

 

[treeclimber165]

Originally posted by Fish
Doug,
...at least Brian sends good photos.

Do me a favor and erase my email address off of them when you forward them to all your porno buddies. I'm not fond of getting my email addy harvested for spam lists.

 

[Fish]

I never forward your milt, I just save it for myself.

I save it to easily disposable cds, in case the law shows up.
Look what happened to poor Pete Townsend, I am sure he is
a victim of some misunderstanding.

Seriously, you are my only porno buddy.

 

[dbabcock]

butt...butt...

 

[Tony Snyder]

There is more to getting the best out of your grinder than cranking the right angles in.

Like someone said taking small amounts of metal at a time help from burning the chain.

Wheel type and grade makes a big difference. The brown resinoid bonded wheels are worthless for saw chain. The pink wheels are not a whole lot better. The best wheels in general availability are the grey Silvey wheels. They are a soft grade of aluminum oxide vitrous bond wheels. They have apparently put a lot of research into specifying that wheel.

I have reworked the arbor on my grinders and modified the guard so that I can use standard 1 1/4 arbor hole surface grinder wheels. That way I have a much greater choice of wheels.

Softer wheels break down faster, and are sort of self cleaning for that reason. Good for saw chain

Dirty chain will load up your wheel surface and make the burning situation worse. Continued....

 

[Tony Snyder]

Fish made the very important point that the wheel needs to be dressed often. That is not so much to reshape the wheel as it is to expose a fresh wheel surface.

Some Manufacturers make hard wheels to sell for chain grinders because they last longer, and sometime the customer/user likes that because he doesn't know any better. His hard wheels will have a greater tendency to glaze over and burn the cutters.

I have rigged up a little compressed air line that may help me a little. I really wish there was a way to run coolant without throwing it all over the shop.

If the cutters were air hardening steel which they may be, there may be less damage done by the discoloration than we think.

Walt could tell us a lot about this subject I'll bet. Where is he? I don't see how he can stay mad so long. I can't.

 

[bwalker]

Tony/Fish, You guys seem to be up on how to sharpen a chain properly. Too bad there where not more like you guys out there. I brang chains to a dealer once to have sharpened. When I got them Back the guy made the comment"I dropper yer rakers fer more speed". Sure enough the chains where practicaly ruined. I never said anything, I just never went into his shop again( hes the husky dealer I disdain that I have refered to in other posts) and never will.

 

[geofore]

what's made of ?

This is a question you should put to George Ruggles at Oregon chain's technical department. The tech guys ought to know what it's made of . They ought to tell you if it isn't a trade secret.
I touch up new chain before I use it. The best compliment I've gotten hand filing is when the guy comes back and tells you "It didn't cut this good when it was new."

 

[Gypo Logger]

The best way to grind is go slow, taking off small amounts. Its ok to use the wheel in a hop, hop motion in and out of the cutter to reduce heat. The farther into the gullet the stone goes, the closer the stone gets to the top plate, so easy does it, and dress the stone often. Only one side of the stone does the grinding.
John