Author Topic: Looking for gasket material  (Read 229 times)

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Offline KilliansRedLeo

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Re: Looking for gasket material
« Reply #10 on: January 03, 2014, 08:53:28 am »
Well, the saw I'm doing, Husqvarna 262XP with a 365 Special piston cannot go without a base gasket. The 365 piston is 0.060 taller than the stock 262 piston. I am trying to do this without cutting the squish band. So I will need a base gasket to get the squish close to 0.020. Usually I would cut a gasket out of 110 annealed copper precision shim stock but do not have the patience to do that for just 1 saw.
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Offline Al Smith

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Re: Looking for gasket material
« Reply #11 on: January 03, 2014, 10:49:11 am »
Well you certainly can't stuff 60 thou in a 40 thou hole. I see said the blind man to his deaf wife as he picked up a hammer and saw .

Offline KilliansRedLeo

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Re: Looking for gasket material
« Reply #12 on: January 03, 2014, 11:34:04 am »
My sentiments exactly! It is an experiment that both Farmboy and I have been noodling on for some time. We both like the old 262XP even though they are getting long in the tooth. We have both been looking for ways to breathe a little more life into the old 262XP and there are still a lot of people out there that have a 261 and would love to have a 262XP! This project is for a tutorial I will be publishing on Chainsaw Repair when complete.

It is about converting your 261 to a 262XP with some mods thrown in, MM, HDA-87 carburetor and the 365 Special piston. I am attempting to do the entire thing without custom machine work, and without a pile of factory tools. Us old guys are not the target audience for this however a person new to chainsaw repair/modification is.

Tim
"When the people fear the government...you have tyranny....When the government fears the people....you have liberty"

Thomas Jefferson
1743-1826

Offline Al Smith

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Re: Looking for gasket material
« Reply #13 on: January 03, 2014, 12:45:56 pm »
Sounds like good project to me .Like I've said before you'll never really know unless you do it to find out .

Offline Cut4fun

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Re: Looking for gasket material
« Reply #14 on: January 03, 2014, 03:21:01 pm »
My sentiments exactly! It is an experiment that both Farmboy and I have been noodling on for some time. We both like the old 262XP even though they are getting long in the tooth. We have both been looking for ways to breathe a little more life into the old 262XP and there are still a lot of people out there that have a 261 and would love to have a 262XP! This project is for a tutorial I will be publishing on Chainsaw Repair when complete.

It is about converting your 261 to a 262XP with some mods thrown in, MM, HDA-87 carburetor and the 365 Special piston. I am attempting to do the entire thing without custom machine work, and without a pile of factory tools. Us old guys are not the target audience for this however a person new to chainsaw repair/modification is.

Tim

Sounds sweet.  Cant wait to see the posting in the future.   
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Offline KilliansRedLeo

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Re: Looking for gasket material
« Reply #15 on: January 03, 2014, 11:17:28 pm »
Will not be too long now, just got message from HVA, the last of the necessary parts were shipped today! So, away we go, only one problem, I can do the modifications faster than I can type!
"When the people fear the government...you have tyranny....When the government fears the people....you have liberty"

Thomas Jefferson
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Offline Cut4fun .

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Re: Looking for gasket material
« Reply #16 on: January 03, 2014, 11:59:57 pm »
I bet.  I couldnt imagine the time involved doing that.
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Offline KilliansRedLeo

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Re: Looking for gasket material
« Reply #17 on: January 04, 2014, 11:58:16 am »
Well now I have to prepare for the 365 Special piston being a bust. It is an experiment after all, replacing the windowed 262XP piston with a slab sided 365 Special slug. However, the 365/372 saws both had closed ports as does the 262 and they run fine. I have another 261 waiting in the wings and ordered enough parts to do both so perhaps I should build two saws exactly alike except for the piston then we could run em both and see which we like better.

I will have to PM Shep and see what he thinks but right now I'm sorta liking that idea. What do the rest of you think?
"When the people fear the government...you have tyranny....When the government fears the people....you have liberty"

Thomas Jefferson
1743-1826

Offline 660magnum

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Re: Looking for gasket material
« Reply #18 on: January 04, 2014, 12:08:39 pm »
The 262 has the old school Mahle single transfer closed ports like the older Dolmar 6800 and Stihl 066. That is why it has the window piston. The bottom of the transfers is in the cylinder wall.

The Husqvarna 365 has the bottom transfers in the base flange of the cylinder and does not need a window piston.
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Offline Cut4fun .

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Re: Looking for gasket material
« Reply #19 on: January 04, 2014, 12:17:33 pm »
Well now I have to prepare for the 365 Special piston being a bust. It is an experiment after all, replacing the windowed 262XP piston with a slab sided 365 Special slug. However, the 365/372 saws both had closed ports as does the 262 and they run fine. I have another 261 waiting in the wings and ordered enough parts to do both so perhaps I should build two saws exactly alike except for the piston then we could run em both and see which we like better.

I will have to PM Shep and see what he thinks but right now I'm sorta liking that idea. What do the rest of you think?

I put a slab side BB372 piston in a 475 and it runs like a scalded dog.  OEM 475 uses a windowed piston.
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