Showing posts with label field expedient measurements. Show all posts
Showing posts with label field expedient measurements. Show all posts

Wednesday, January 29, 2014

Chainsaws, Mixed Gas

Today was the first decent weather in nearly a week.  Windchill was around zero F.

I took a walk around Riverbend/Burchfield park.

Then I came back home, ate some lunch and did some chainsawing.  We have lived here for about twenty years and I have been planting trees steadily.  All of the trees were small when I planted them and were hit by deer browsing.  Consequently, many of them came up multi-stemmed.


Mostly Red Maple and one or two Black Locust

Part of my long term plan is to "release" oak, chestnut, walnut and other mast trees.  I will also prune any narrow forks out of the trees I leave.  In areas where there are no mast trees I trimmed out the multi-stems and leave just one good pole.  It leaves a heck of a mess.

Chainsaws use gas


More accurately, chainsaws use mixed gas.  Mixing gas is a necessary pain.

One of my flaws as a property manager is keeping track of "stuff".  I have more "stuff" than I have places to put it.

Today was my chance to use a field-expedient oil measure.

My chainsaw uses 40:1 mix.  A US gallon is 128 ounces.  That means I need just a scootch over 3 oz of 2-stroke oil.

According to a few standard formulas (volume of a cylinder = Height X Pi/4 X Diameter ^ 2)  and there are 0.55 oz in a cubic inch.

My tape measure tells me this pill bottle is 3" tall by 1.5" dia.


Looking around I see that we have a wealth of empty pill bottles.  I found one that is 3" high by 1.5" in diameter.  That calculates out to 2.9 oz.  So one of these plus about a quarter inch more should be about right.