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#Post#: 50933--------------------------------------------------
Re: Bow Bars Good For Firewood?
By: 660magnum Date: December 19, 2014, 11:40 pm
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Me too. There is a very faint mark where the oil hole would
likely be? Must be plugged?
[u]OIL HOLES
The alternate point of the post is that oil holes are important
and somewhat difficult to make in bow bars and must always be
considered.
One guy in one of the earlier pictures in this thread had a
plastic oil bottle taped to the top handle that dribbled oil on
his chain.
Most of these bars were intended for popular saws in the 80's. A
narrow bar stud slot is easy to make wider.
But a oil hole in the wrong place or a mounting slot that is too
wide must be welded up and repositioned.
New oil holes - well - You have to drill down inside the chain
slot to intersect the oil hole. This is limited by the width of
the chain slot as well as the thickness of the bar mounting pad.
In other words, you cannot break out the side and you must hit
the oil hole. It takes a guy used to drilling holes in metal
with a 1/16" bit to do this work. Small drill bits have to be
spun very fast and fed straight or they will lead off and out
the side.
A regular bar for the current popular chainsaws has the oil hole
very close to the bottom of the chain slot. If you study one you
will find that they went in with a .050" thick saw blade or
grinding wheel and deepened the chain slot right at the oil hole
to provide a lead for the oil out of the hole and into the chain
slot.
#Post#: 50935--------------------------------------------------
Re: Bow Bars Good For Firewood?
By: 3000 FPS Date: December 20, 2014, 10:16 am
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That is interesting about the oil holes and grinding the slot
deeper. I have drilled a couple of bars down through the slot
using the flex shaft that I have. It turned out just fine and
worked good. I have drilled some new oil holes in bars but
have not thought about deepening the slot where the oil hole is.
#Post#: 52040--------------------------------------------------
Re: Bow Bars Good For Firewood?
By: 660magnum Date: January 6, 2015, 5:46 am
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The big question with bow bars is: Will it fit my saw or can it
be made to fit my chainsaw?
You may soon wonder if they say it fits your saw - how close
does it fit? How well does it oil?
Here are some current bar pattern fitments from Oregon . . .
#Post#: 52042--------------------------------------------------
Re: Bow Bars Good For Firewood?
By: 660magnum Date: January 6, 2015, 11:09 am
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Here's the way my bar looked before the 8mm slot was opened up
to 9 mm and the oil hole was moved on the other side from
aligning with what would be the adjuster pin position. It was
originally a non-reversible D276 style for Macs. It is now a
non-reversible D009 mount. See the top bar in the bottom
picture.
[URL=
HTML http://smg.photobucket.com/user/jamesirl/media/BowMac2.jpg.html][img<br
/>width=600
height=337]
HTML http://img.photobucket.com/albums/v11/jamesirl/BowMac2.jpg[/img][/URL]
#Post#: 52071--------------------------------------------------
Re: Bow Bars Good For Firewood?
By: 660magnum Date: January 7, 2015, 10:14 am
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This is my bow bar that I plan to use on my Husqvarna 371.
Facts: Unknown actual brand but was a one sided D276 for a
McCulloch. 14" diameter
Original oil hole was welded up and redrilled farther
away from the slot at the D009 distance (the hole closer to the
bar throat)
A second oiler hole was drilled and cross drilled
(away from the bar throat)
Bar was sanded bare and repainted in TSC Kubota
orange
Broke and spun a loop of Stihl 3/8" X 85 DL X .050" X
RS chain shown on bar
This bow bar oils very well with the two oil holes.
[URL=
HTML http://smg.photobucket.com/user/jamesirl/media/P1070038.jpg.html][img<br
/>width=600
height=450]
HTML http://img.photobucket.com/albums/v11/jamesirl/P1070038.jpg[/img][/URL]
#Post#: 52077--------------------------------------------------
Re: Bow Bars Good For Firewood?
By: 3000 FPS Date: January 7, 2015, 12:00 pm
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Someone sure did a lot of work on that bar. Just goes to show
what can be done and modified to work.
#Post#: 52078--------------------------------------------------
Re: Bow Bars Good For Firewood?
By: 660magnum Date: January 7, 2015, 12:18 pm
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I'm thinking the dad of the kid I bought the bar from on Ebay
did the welding and drilling? I bought the black bar in the
picture but he sent me the yellow bar??? I think I like the
yellow one better because it hangs lower and there's less to do
to my 371?
Only thing about the slot - instead of measuring and scribing a
line and then filing to the line, he used a angle grinder to
widen the slot enough to fit the bar studs.
A little sloppy and I tried to even it out with a file. But it
works fine. Now, you probably wouldn't notice unless you had
nothing else to do?
The reason for the two oil holes? I figure the single 1/16" hole
up to the slot was thought to not be big enough? The new second
hole has a little lead in the direction of chain travel.
#Post#: 53360--------------------------------------------------
Re: Bow Bars Good For Firewood?
By: 660magnum Date: January 28, 2015, 12:20 pm
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It's a pretty, sunny day, with little wind. But it's in the
teens F and there is 6" snow on the ground. Ideal chainsaw
weather for a young man. But I'm not a young man.
I'm in the Easy Boy with Fox news on the TV only because Turner
Classic Movies has some foreign movie on.
I was looking on Ebay at the Bow bars and browsing the
offerings. The selection comes and goes and between Thanksgiving
and Christmas was a lot better. Half of what's offered today was
on Ebay back in the early fall.
The main reason I was making this post is the newer offerings on
Ebay are freshly painted bars. Personally, I wouldn't buy one of
these! A bow type bar has a hard face area on the rim cutting
area. If you have a picture of a old bar with the paint mostly
gone, you can see this hard faced area of the bar. It is shiny
like chrome. It will not rust. The most important area for this
hard face is within 6" of the "stop" or dog. That is where all
the pressure and wear is. That is where the hard face is likely
to be worn away.
If the bar is all painted up nice, it is difficult to see the
wear area on the Ebay pictures. - Beware - ???
I was lucky enough to get essentially a NOS bar. It never had a
chain on it. The paint was all skinned up. A little light rust.
Looked rough. But you could tell all about it in the picture.
And then the guy rattle canned red on one side of it before he
sent it to me which I didn't care for. I sanded all the paint
off, the original Mac yellow - as well as his thin red. Then
after looking it over, I painted it with Tractor Supply Kubota
orange which is close to Husqvarna orange.
These bars are likely no newer than the mid 80's and were made
for chainsaws of the era when the bars were made. So be prepared
for some metal work to make them fit your Stihl or Husqvarna?
With the newer chainsaws, it is typically better to set the bar
up to hang low rather rather than the bottom of the bow being
parallel with the bottom of your chainsaw. The reason for this
is it reduces the changes required around the top of the bar
mount area of your chainsaw.
Take note that there were a lot of bow bars made for Poulan
chainsaws. It is highly likely that you can find one that
already fits your Poulan?
Also these guys in the South Eastern USA that are selling these
old bars on Ebay may have a pile of them in the back room?
There's a possibility that they may have what you are looking
for but have not put it on Ebay?
Keep in mind that the 12" - 14" high bow bar is great for
blocking up firewood on a fallen tree. A bow bar is not exactly
the handiest bar to fell a good sized tree with. These bars are
60cc or 4 cube size saw bars.
The little narrow bow bars are called "brush" bars and are great
for Christmas trees. They can be used with a 50cc - 3 cube
chainsaws.
#Post#: 53363--------------------------------------------------
Re: Bow Bars Good For Firewood?
By: Cut4fun Date: January 28, 2015, 1:04 pm
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Back a few years ago on another puter I had sites marked where
you could by new bow bars. I looked for info yesterday and the
new bar bow market must have dried up? Any info on who is
selling new bow bars or did the regulations and lawsuits kill
them all off?
#Post#: 53365--------------------------------------------------
Re: Bow Bars Good For Firewood?
By: 660magnum Date: January 28, 2015, 1:16 pm
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This company manufactures the Christmas tree bars.
HTML http://www.chainbar.com/products.html
They can also redo the hard face overlay on old wide bars or
rebuild the mount area to fit your saw including the slot and
oil hole.
This company would also be a good source of guards and spurs or
stops (dogs) for bow bars.
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