Author Topic: 024 Super Piston, cylinder, and chain  (Read 1202 times)

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Offline 94BULLITT

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Re: 024 Super Piston, cylinder, and chain
« Reply #30 on: June 02, 2013, 08:03:38 pm »
Here is a picture. I hope it is good enough. The new piston has a shorter skirt so the wrist pins are not setting at the same level.


Offline Adirondackstihl

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Re: 024 Super Piston, cylinder, and chain
« Reply #31 on: June 02, 2013, 09:06:06 pm »
The difference in skirt height seems considerable. I'd make sure it doesnt free port before doing a complete assy

Offline brokenbudget

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Re: 024 Super Piston, cylinder, and chain
« Reply #32 on: June 02, 2013, 09:18:37 pm »
The difference in skirt height seems considerable. I'd make sure it doesnt free port before doing a complete assy

i thought the skirt was a little short from the first pic.
i notice short skirts. especially when they're real short ;D
on a serious note, i would really make sure it doesn't free port. the cylinder looks quite good (on the outside anyway ;)), maybe it might be worth it to get another piston. check for free port first.
when I grow up, i wanna be an adult.

Offline 94BULLITT

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Re: 024 Super Piston, cylinder, and chain
« Reply #33 on: June 02, 2013, 09:35:15 pm »
I'll check for free porting before I assemble it. I stuck the piston on the rod with out ring and put the jug on it to make sure it would turn over.

Offline 94BULLITT

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Re: 024 Super Piston, cylinder, and chain
« Reply #34 on: June 03, 2013, 07:14:23 pm »
Here is a better picture of the pistons. I have them connected by the wrist pin. It does not free port.



I did not do anything to the muffler yet but a gasket match.

before



after



The exhaust side of the cylinder

I just did a gasket match to it.

Before



No After picture, I forgot to take one.

The intake side

I just cleaned it up a little.

Before (really bad picture)



After

Could I have opened the left side up to match the right side?



I have it running. I used it just a little this afternoon. I had to put a 20" bar and chain on it because I don't have a 16" chain yet. I want to run it a little bit then I might do a muffler mod. Thanks for the help.

Offline Al Smith

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Re: 024 Super Piston, cylinder, and chain
« Reply #35 on: June 03, 2013, 09:09:30 pm »
Skirt is a little shorter which in theory would open the intact lower in the up stroke .However that's relative to the cylinder port .It might not change it a bit .

Actually you wouldn't know unless you had the stock numbers then checked this set up with a wheel to compare.If it runs okay I wouldn't be concerned about it .

Offline 94BULLITT

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Re: 024 Super Piston, cylinder, and chain
« Reply #36 on: June 04, 2013, 10:51:36 pm »
I ran the saw a little today. It does not have the power I think it should. Maybe I am expecting too much from it. I checked the compression and it only has 120#s cold. should it have more?

Offline 660magnum

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Re: 024 Super Piston, cylinder, and chain
« Reply #37 on: June 04, 2013, 10:55:26 pm »
You need some Caber rings
We should share what we know... someone may learn...
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Offline Al Smith

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Re: 024 Super Piston, cylinder, and chain
« Reply #38 on: June 05, 2013, 09:15:45 pm »
Run the snot out of it .It should seat in the rings and the comp should go up .

FWIW it took me the best part of one summer to get the rings seated on an 038 Mag  I rebuilt .Simpley because I was cutting down from a 10 cord pile of oak at 10-15 minutes run time at a time .Now once those rings seated the improvement was dramatic .

 

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