dissecting an earthquake chainsaw

[Chris-PA]

When I took off the recoil, I noticed some ducting molded into the cover that made it look like the flywheel fan drove air into the carb box.

Am I crazy?

Does the Redmax design have this as well?

I don't think it's a supercharger, more like filtering system.

 

[tbone75]

You guys get these things figured out so I can just do whats needed !

 

[PJF1313]

Well...

I set one, a 3816, up for our "Chipper Crew" to use at the beginning of the year. Nothing crazy - just a M.M. (cut the cat and the baffle out, opened the outlet to just over the deflector.[Spark screen still installed - Gvmt property]), re-tuned for the mod - a little fat, and some sticker removal.

It's out of the locker 5 or 6 days a week for the past month. So far, they killed the chain - FROM SHARPENING IT and cleaned daily I put a loop of Stihl PC3 - 56 D/L on the 16" FYI - trued and turned the bar. The crew goes to it before the Husky 240 we also have set aside for them.

Pic coming when the camera recharges. They haven't quite wore the labeling off the bar yet - but I'm impressed they haven't killed it yet! It runs on cheap (read contracted) gas and Ultra @ 50:1 with at least 10% corn (haven't tested it recently, but it's been as high as 18) These are the same guys that can f-up a ball bearing!

PJ

To be continued...

 

[Walt41]

Don't listen to the guys who don't own one or never ran one, they are just being quaketankerous!

 

[o8f150]

You guys get these things figured out so I can just do whats needed !

figures,, make us do all the work

 

[tbone75]

figures,, make us do all the work

Got to many other saws apart right now to play with it ! LOL

 

[naturelover]

My latest modification to the little Quake. I checked for air flow and didn't find a way for any significant amount to get in there. I used some tubing to go from the air filter base and made a straight shot up into the new filter. I extended the stock mounting bolt up far enough to even use the same nut to hold everything on.

View attachment 276209

I haven't had an opportunity to run it yet, but I will post the results when I do.

dd

I tried to figure out how to get a dawg on the clutch cover, but the way its made, it wouldn't line up correctly.

 

[67 Mustang]

Got to many other saws apart right now to play with it ! LOL

Mind defining what "it" is, exactly? :msp_confused: :hmm3grin2orange:

 

[diggers_dad]

I don't think it's a supercharger, more like filtering system.

Hmmmm.... I saw a guy hook up two leaf blowers to a car engine one time as a sort of "redneck forced induction system" and it actually worked (to an extent).

Now if I can attach a hair dryer to the intake of the Quake...

Well...

I set one, a 3816, up for our "Chipper Crew" to use at the beginning of the year. Nothing crazy - just a M.M. (cut the cat and the baffle out, opened the outlet to just over the deflector.[Spark screen still installed - Gvmt property]), re-tuned for the mod - a little fat, and some sticker removal.

It's out of the locker 5 or 6 days a week for the past month. So far, they killed the chain - FROM SHARPENING IT and cleaned daily I put a loop of Stihl PC3 - 56 D/L on the 16" FYI - trued and turned the bar. The crew goes to it before the Husky 240 we also have set aside for them.

Pic coming when the camera recharges. They haven't quite wore the labeling off the bar yet - but I'm impressed they haven't killed it yet! It runs on cheap (read contracted) gas and Ultra @ 50:1 with at least 10% corn (haven't tested it recently, but it's been as high as 18) These are the same guys that can f-up a ball bearing!

PJ

To be continued...

That is just incredible. I think they are just telling us what we already know - good power to weight, good handling and good A/V. It's just a good little saw and I hate to say it but it's better than most everything in its class.

The little saw I hate to love :bang:. Sort of like the ugly chick that everyone dated but no one would admit it. :hmm3grin2orange:

 

[milkman]

Sort of like the ugly chick that everyone dated but no one would admit it. :hmm3grin2orange:

Good analogy, it sure ain't pretty, and it is little, but it sure does put out.

 

[tbone75]

Mind defining what "it" is, exactly? :msp_confused: :hmm3grin2orange:

Get your head out of the gutter ! The saw ! :hmm3grin2orange:

 

[jcsmith]

cheap entertainment

Just finished reading this thread. Took me a few sessions, but it was very entertaining. I have to say thanks to everyone who posted. Except for 1 or 2, that is.Had quite a few laughs as well. I even learned a few things. Thanks again fellas. Chris

 

[diggers_dad]

Just finished reading this thread. Took me a few sessions, but it was very entertaining. I have to say thanks to everyone who posted. Except for 1 or 2, that is.Had quite a few laughs as well. I even learned a few things. Thanks again fellas. Chris

There's more to come! Act now and we'll send a FREE Quake (Just send $99.95 separate postage and handling).

Here's how I did my air filter mod:

I had put some silicone sealant around the stock filter because it didn't fit as well as I wanted and let some dust in, so you see the red silicone here.

Next I cut out the part of the filter I needed to make my base and installed it:

Next came the 10/32 coupling nut and 10/32 all thread for the needed extension (available at Fastenal, less than 50 cents).

 

[diggers_dad]

Then I had to secure the piece of hose to the filter cover and make a silicone seal on the end so it would also be air tight:

I also had to build up the base for the new air filter so it would sit on the same level as the air filter base. I just used silicone and made several layers, then trimmed away what I didn't want. I also built up the silicone around the coupling nut so it fits snugly and won't allow air in:

You can see it's a nice straight shot into the carb intake and it's sized the same:

 

[Walt41]

Jr just pointed out that there is a new show called "container wars" where bidders attend shipping container auctions, wonder if that was the source of the quakes, possibly an entire container of quake returns that was abandoned...almost wish I was near a shipping port...almost.

 

[diggers_dad]

Next I had to open the bottom of the new air filter to accommodate the larger intake and mounting stud for the fastener:
(Not the prettiest work I've done, but it was my first time trying this.)

Last piece was a bit of foam to make sure the seal between the silicone and air filter base didn't let any crud in:

Then all sealed up and ready to go:

 

[diggers_dad]

So, did all of my air filter work pay off?

Good question. I cut a piece of seasoned oak (odd shape but roughly 14" wide and 10" tall) which pretty well buried the bar. With the stock filter set up it went through it (average of three times) in 15 seconds and cut best about 8,600 rpm. WOT without a load was 11,600 rpm.

The average cut time with my air filter set up was 13 seconds and it cut best around 9,500 rpm. WOT without a load was 12,500 rpm.

Edit: The air filter was about $6 online with free shipping. If you calculated the cost of the coupling nut, all thread, silicone, foam, tubing and air filter it would be less than $10.

 

[milkman]

Wouldn't let me Rep ya, thanks for the pics and explanation.

 

[singinwoodwackr]

So, did all of my air filter work pay off?

Good question. I cut a piece of seasoned oak (odd shape but roughly 14" wide and 10" tall) which pretty well buried the bar. With the stock filter set up it went through it (average of three times) in 15 seconds and cut best about 8,600 rpm. WOT without a load was 11,600 rpm.

The average cut time with my air filter set up was 13 seconds and it cut best around 9,500 rpm. WOT without a load was 12,500 rpm.

Edit: The air filter was about $6 online with free shipping. If you calculated the cost of the coupling nut, all thread, silicone, foam, tubing and air filter it would be less than $10.

So, at 2sec/cut how long with it take to make up the time you spent on this?

Now I'll have to do something similar...thanks a lot :rolleyes2:

 

[diggers_dad]

Wouldn't let me Rep ya, thanks for the pics and explanation.

You're welcome. My three saw plan is an EQ with a 14" bar, one with a 16" bar and one with an 18" bar.:hmm3grin2orange: