dissecting an earthquake chainsaw

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A little action.

One of the bigger ones its tackled yet, nearly bar length diameter and pretty hard too.

Still cuttin' great! :clap:

ETA: Even got a "dang, that thing cuts pretty good" from one of the onlookers... :msp_biggrin:

Picture001_zps949b6605.jpg
 
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My son and I finally did some testing with the Quake 3816.

Turned this into a high school science project for him.

Did a decent Muffler Mod and then did some cutting speed testing using the modified muffler vs a stock muffler.

We tried to find cylindrical log sections to use for testing.

3 different logs representing different diameters.

12 cuts out of each log section....6 with the modified muffler and 6 with the stock muffler.

When all cut times were averaged the modified muffler gave us a 17% increase in cutting speed.

Same saw, same chain, same amount of pressure (as close as we could tell).

This video shows some cuts on the largest log we used.

First cuts are the MM and the second cuts are the stock muffler.

[video=youtube;49SfC8k576k]http://www.youtube.com/watch?v=49SfC8k576k[/video]
 
So I ran my CS3816 over the weekend, and the thing worked REALLY well. With the timing advance it's now a darn nice saw. Plenty of power for 38cc, and it's light and well balanced. It's been reliable too. However, I dinged a stone with the original chain, so I decided to pop a spare loop on since I have several Lo Pro 16" bars.

NOT!

It's 57DL. I had not noticed this before - all my other 16" bars are for 56DL. How annoying. So I just put on a spare bar too and was up and running, and I got the grinder out and have now fixed the chain without taking too much off. Then I went online at Bailey's and looked at 57DL chains. I almost bought one too, but in the end I decided to order a couple of those $13 Tiger-banded bar & chain combos (Carlton Lo Pro, which I like). I have one already and you can't beat a B&C for less than the price of a chain.

At the very least, I'll keep one around for the next time my neighbor and I have to do storm clean up. He abuses his little Echos and they take the same bar - I've seen what his chains look like!:dizzy:
 
Not me - my one Earthquake is in regular rotation, only passed over in favor of the basically similar 40cc MS4018 strato saw. With the mods I did it's a real saw I can count on to start and work well every time, able to handle anything I can cut with the 16" bar, and very nice to use.
 
Got home tonite to a big box on my front porch... hmmmmm... what could it be????

<a href="http://s1298.photobucket.com/user/echoshawn/media/20130417_203415_zps72b5926b.jpg.html" target="_blank"><img src="http://i1298.photobucket.com/albums/ag52/echoshawn/20130417_203415_zps72b5926b.jpg" border="0" alt=" photo 20130417_203415_zps72b5926b.jpg"/></a>


Yes, I'm now a 'Quake owner...... :hmm3grin2orange:

<a href="http://s1298.photobucket.com/user/echoshawn/media/20130417_203542_zpscfb1d075.jpg.html" target="_blank"><img src="http://i1298.photobucket.com/albums/ag52/echoshawn/20130417_203542_zpscfb1d075.jpg" border="0" alt=" photo 20130417_203542_zpscfb1d075.jpg"/></a>

Time to grab the dremel and get to work! :rock:

BTW, thanks to H2H!!!!
 
oh my, I just don't know what to saw...have fun....
that is a big freakin box for such a little saw..
I have been to busy to play with mine......:bang:

I packed it fast and the only box I had was that one if I knew it was going to seat in the trunk in my car for a few days I could have found a smaller box; I kinda like how it was boxed up with smaller boxes in the big box LOL
 
Little post MM video... sounds reallllll nice... :D
<iframe width="640" height="360" src="http://www.youtube.com/embed/TcKELbmL-qc?feature=player_detailpage" frameborder="0" allowfullscreen></iframe>

Now just gotta find my long reach torx drivers so I can play some more inside it. Was worried I had actually opened the muff too much, but it seems to like it.
 
Here's a question for the earthquake brain trust. My earthquake leaks bar oil very badly, which I just can't stand a saw that leaks. When it comes to a leaking saw, I get so turned off that I don't even want to touch it. The thought of throwing it in my truck, only to find an oily mess minutes later, makes me want to puke. Furthermore, the resulting embarrassment to my friends, family, and community of being covered in bar oil just won't do. So I set out to address the problem today.

The oil hose seems to be the source of the leaking. It appears as though the saw has to come mostly apart to access it. Carb, front handle, rear handle/tank assy, clutch, oil pump cover, etc... Not having any new parts available, I got discouraged about disassembling it. So I tried to look in the oil tank for the inlet line, but I don't see one. It appears that there is a tube moulded into the tank that runs from the outlet on the right side over to the left side. I would assume that if I park the saw on its clutch cover, like a 346xp, that bar oil would not leak. However, the oil pump would starve for oil on felling cuts.

Have any of you experienced a bar oil flow stoppage with the clutch side down?
 
Little post MM video... sounds reallllll nice... :D
<iframe width="640" height="360" src="http://www.youtube.com/embed/TcKELbmL-qc?feature=player_detailpage" frameborder="0" allowfullscreen></iframe>

Now just gotta find my long reach torx drivers so I can play some more inside it. Was worried I had actually opened the muff too much, but it seems to like it.

A MM makes that saw better :msp_smile:


Here's a question for the earthquake brain trust. My earthquake leaks bar oil very badly, which I just can't stand a saw that leaks. When it comes to a leaking saw, I get so turned off that I don't even want to touch it. The thought of throwing it in my truck, only to find an oily mess minutes later, makes me want to puke. Furthermore, the resulting embarrassment to my friends, family, and community of being covered in bar oil just won't do. So I set out to address the problem today.

The oil hose seems to be the source of the leaking. It appears as though the saw has to come mostly apart to access it. Carb, front handle, rear handle/tank assy, clutch, oil pump cover, etc... Not having any new parts available, I got discouraged about disassembling it. So I tried to look in the oil tank for the inlet line, but I don't see one. It appears that there is a tube moulded into the tank that runs from the outlet on the right side over to the left side. I would assume that if I park the saw on its clutch cover, like a 346xp, that bar oil would not leak. However, the oil pump would starve for oil on felling cuts.

Have any of you experienced a bar oil flow stoppage with the clutch side down?

I haven't had that problem

Only thing I've noticed is right after you turn the saw off you'll get a little leakage

I've had one strip down there not that hard to take apart; I would check were there hooked up to the pump and were it goes into the tank there not that well made (Earthquakes) but they sure can cut better than I ever thought
 
I have not noticed it, but I have not specifically looked either. I was using it to flush cut some stumps today and found that the bar appeared to be well piled afterwards, but then again they were not that big such that it was running for a long time that way. Mine leaks no oil either. There is a fitting you can see in the oil line that is visible from below. Could it be leaking there?

Actually I ran it with an 18" bar and some Lo Pro skip chain with the bumpers ground off. It cut great that way! Then I bumped a stone I didn't see - that was the last for that chain, not enough cutter left to go back for one more sharpening.
 
38cc quake observation....I ran 5 tanks thru mine today, I thought it might improve the compression. This one had around 145 when I pulled it out of the box. 5 tanks later...still 145. It must be something with the starter thingy, but it feels like it will pull your fingers off, feels a lot more than what my gage shows......thank god it starts easy or it could hurt me....:msp_scared:

I agree, mine feels like it has more compression than it's showing.. I was worried my old eechos were low because they pull over so easily, but the 500 is in the 160 range, and the 702 is 150.. Must just be better mechanical advantage or something.
 

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