dissecting an earthquake chainsaw

[diggers_dad]

What's this can't afford nonsense? All your doing is buying a bar and chain and getting a free saw that blows North of 180psi stock right out of the box. I tested one earlier that blew 192 psi. and it's never cut anything or worn the rings in yet. No wonder they start and run so well

That kind of compression is crazy for stock! I pulled the muffler to get a closer look at the cylinder - yep, still a base gasket in there. I'm sure I could crank it to well over 200 psi if I wanted to remove the gasket and open the ports a bit while I'm in there. The muffler is restrictive. I haven't even started it and already have the muffler apart for some re-plumbing. I think for now all I will do is a good muffler mod and change the rim to .325. Some careful tuning and it ought to be a solid little saw.

I've mentioned this before, but thought I'd mention again about the guy who bought a 41 cc Quake from me several months back. I talked to him again today, it's still starting and running like a top. He's rough on equipment. Leaves stuff out in the rain, his mix might be 16:1 or 60:1, used motor oil for the bar oil, gets his saws pinched and then jerks 'em loose, that kind of stuff. He told me when no other saw will run the little Quake will fire right up and take off. He said it cuts faster than his neighbors 40 - 45 cc Husky's, but not as stout as his 032 Stihl.

I've already told the wife what I want for Christmas - another 45 cc toy. Dang oh ate eff one fiddy! He started all this mess!

dd

 

[diggers_dad]

out of stock on their site . HA figures my luck

Are you trying here?

http://moreoutdoor4u.com/cs38chainsaw38cc14oregonchainbar-2-1.aspx

In the coupon box before checkout type "ebay" for the discount.

dd

 

[trophyhunter]

Anyone measured the exhaust port on the 45? I m having an "idea" moment at work...

No, but now I'm really curious as to what sort of mad scientist moment you were having?

 

[Lark-o]

Anyone measured the exhaust port on the 45? I m having an "idea" moment at work...

What do you want measured? Height/ width?

Edit-
Roughly .600" x 1.09" at the muffler flange.

I have a couple pieces of 7/8" stainless tubing left over if you want them you have them. That's what I used as the pipe. I've tons of random stainless tubing at work.

 

[Lark-o]

Had my buddy weld up the muffler. Boy does that thing liven right up, I've never had a saw gain that much by a MM before.

 

[ReggieT]

Had my buddy weld up the muffler. Boy does that thing liven right up, I've never had a saw gain that much by a MM before. View attachment 320045

Wow...how much do you feel like you've gained after MM? Was that muffler flat before hand?...I'ma tad new at this...but I like it!!

 

[Lark-o]

Wow...how much do you feel like you've gained after MM? Was that muffler flat before hand?...I'ma tad new at this...but I like it!!

I'd have a hard time quantifying it but it doesn't even feel like the same saw, the throttle response is so much better. No it's the same size I just cut it apart and took all the baffling and the cat out of it and added a pipe outlet.

 

[ReggieT]

I'd have a hard time quantifying it but it doesn't even feel like the same saw, the throttle response is so much better. No it's the same size I just cut it apart and took all the baffling and the cat out of it and added a pipe outlet.

Hmm...wonder would that produce stellar results with my Remington Weekender 34 CC & my Stihl 025???
Just wondering about the possibilities...

Did you do a lot carb adjustment on the MM?

 

[Lark-o]

T

Hmm...wonder would that produce stellar results with my Remington Weekender 34 CC & my Stihl 025???
Just wondering about the possibilities...

Did you do a lot carb adjustment on the MM?

Ever saw can use a MM, specially newer saws.
The saw was overly fat to begin with so the extra air flow for the MM leaned it out some. I haven't had a chance to get it into some wood yet so I can't tell you how the tune is. It's dark when I get home from work. Neighbors look at me funny when I'm revving saws up in the dark with just a head lamp on in the back yard.

 

[Steve NW WI]

No, but now I'm really curious as to what sort of mad scientist moment you were having?

What do you want measured? Height/ width?

Edit-
Roughly .600" x 1.09" at the muffler flange.

I have a couple pieces of 7/8" stainless tubing left over if you want them you have them. That's what I used as the pipe. I've tons of random stainless tubing at work.

Well, I'm thinking stack. Probably not as cool as a true tuned pipe, but a lot better than a stock muffler, and quite a bit lighter. I was scavenging a bit at work tonight, came across some 1/2x1x.060 wall rectangular tubing that set me off. Checking mine, as close to the piston as I can measure, it's really close to the .375x.875 ID of the tubing.

Here's a couple pics of the mockup, the actual pipe when done will come out at the height of the lower tube, and blow the exhaust in front of the brake handle, and not stick out past the spike. If nothing else it'll look cool. I'm off the rest of the week, and need to call in a favor or two from the laser guys to cut a spacer block/screen holder and pipe bracket, so this project won't go down till next week sometime. With a tiny bit of grinding, standard 1/4-20 nuts will fit in the slot where the square heads of the current bolts go. Just gotta make the bolts just short enough to not bottom out, or use the same nut on the outside method the original did.





Here's a sketch of the spacer block and pipe adapter I need to get made. I'm gonna mill a .050 pocket in the spacer to hold a screen (also scavenged from work), that will sandwich between the spacer and the pipe flange. I'll also "port" the spacer to match the exit dimensions of the saw port giving kind of a <> "expansion chamber" area there.



Thoughts? Maybe it'll run like dog poop and I'll be back to modding the factory muffler, or maybe it'll work great...

 

[Big_Wood]

Well, I'm thinking stack. Probably not as cool as a true tuned pipe, but a lot better than a stock muffler, and quite a bit lighter. I was scavenging a bit at work tonight, came across some 1/2x1x.060 wall rectangular tubing that set me off. Checking mine, as close to the piston as I can measure, it's really close to the .375x.875 ID of the tubing.

Here's a couple pics of the mockup, the actual pipe when done will come out at the height of the lower tube, and blow the exhaust in front of the brake handle, and not stick out past the spike. If nothing else it'll look cool. I'm off the rest of the week, and need to call in a favor or two from the laser guys to cut a spacer block/screen holder and pipe bracket, so this project won't go down till next week sometime. With a tiny bit of grinding, standard 1/4-20 nuts will fit in the slot where the square heads of the current bolts go. Just gotta make the bolts just short enough to not bottom out, or use the same nut on the outside method the original did.

View attachment 320047


View attachment 320048
Here's a sketch of the spacer block and pipe adapter I need to get made. I'm gonna mill a .050 pocket in the spacer to hold a screen (also scavenged from work), that will sandwich between the spacer and the pipe flange. I'll also "port" the spacer to match the exit dimensions of the saw port giving kind of a <> "expansion chamber" area there.

View attachment 320053

Thoughts? Maybe it'll run like dog poop and I'll be back to modding the factory muffler, or maybe it'll work great...

my thoughts are that more then likely you will get decent power out of it but not anything similar to what a modded factory muffler would give. they switched from a stack to a can for a reason. i would be very very very interested in seeing a vid of this very cool project yer doing though. i had my heart set on getting a 45cc quake but payed a good chunk of my wifes dentist bill and did some christmas shopping today so have no extra funds maybe by my next payday one of you guys will have an extra chill'n that i can buy off you.

 

[jsk]

4518 is out of stock. tried everything. Maybe they will get more in.

 

[Lark-o]

Well That sucks!

 

[Lark-o]

This guy still has them on his eBay store. I don't know if it's a different guy.

 

[trophyhunter]

Steve that idea for the pipe is awesome!

 

[Lark-o]

anybody have experience with those woodland pro bar and chains?
Baileys has them I sale till tomorrow.
16" b/c for $26
I can buy a 4116 Quaker for $50...... Hmmmm....Get a power head for $24?? This getting bad.

 

[o8f150]

I would like to see someone make a hot saw out of one

 

[kc4sfe]

Once I get mine muff modded I'm going to loan it to a friend's tree service and see how much abuse they can take!

 

[Lark-o]

I would like to see someone make a hot saw out of one

Me too

 

[Brian B.]

I'd have a hard time quantifying it but it doesn't even feel like the same saw, the throttle response is so much better. No it's the same size I just cut it apart and took all the baffling and the cat out of it and added a pipe outlet.

I honestly feel like my saw gained an honest 30-40%, and the biggest difference is in the cut, I can lay off throttle and throttle right back up with total control where the stock muff saw would stall, not die, just stall out a little. These saws are little demons.

You guys keep saying they are sold out, does this include tc-store on ebay, last I checked he had the, still, $55
(Why do I keep posting that, you guys WILL buy them all, lol)