Build Threads?

[Brewz]

 

[Deets066]

View attachment 74973

I like em rough

 

[Brewz]

I like em rough

Yeah me too and this one has had a hard life.
Lots to fix on it but nothing I can't fix.

I just want to build it into a low key beat up looking work saw that will go really hard

 

[Brewz]

I weighed a new Meteor 066 piston and the Meteor 288 piston. and they are very close.
When you add the Meteor wrist pins the MASSIVE pin that comes with the 288 piston makes it a lot heavier.
I dug out an OEM 084 tapered inner core pin and its a bit longer but about the same weight as the smaller 066 wrist pin.
You can easily notice the weight difference between it and the log that came with the Meteor.

So I can shorten up the 084 wrist pin and with a a bit of grinding to remove some material from the 288 piston, it will be the same as a meteor 066 piston.

Still heavier than an OEM 066 piston but those WIDE skirts, lower exhaust with same intake and single ring are what I am after.

Hoping to get it to 101/120/80ish with a tiny touch of fill in the intake

 

[RI Chevy]

What effects does a wide skirt piston provide?

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[Adirondackstihl]

What effects does a wide skirt piston provide?

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Allows you to widen the ports without free porting

 

[Brewz]

What effects does a wide skirt piston provide?

It lets you go wider on the intake and exhaust ports. A lot wider!

 

[MustangMike]

Does the ring gap placement on the piston also limit port size?

 

[RI Chevy]

I thought sometimes, wider wasn't necessarily the best? In other words, too much hurt saw performance?

@Adirondackstihl
@Brewz

 

[Brewz]

Does the ring gap placement on the piston also limit port size?

Single ring piston, center pinned on intake side.
You gotta take about .070 of the base to tuck the ring ends in and about .030 off the band to set squish.
This saw will probably end up with a 084 carb and boot on it so the wider ports are good to take advantage of the flow capacity

 

[Brewz]

Jason told me he stopped using 288 pistons as he couldn't keep wrist pin bearings up to them but the one I did has done 20+ tanks so far at 14500 RPM and is going strong.
That saw goes like stink too and I have improved my porting since then.
It will probably return for some porting updates I have offered for free to bring it up to my current standards.
Will be good to check the wrist pin bearing too.

 

[mdavlee]

Use an 088 bearing and/or spacers to keep it centered.

 

[Brewz]

Use an 088 bearing and/or spacers to keep it centered.

That's the plan mate
The last one I did I actually used an OEM husky 288 bearing but I have an 088 bearing for this one

 

[mdavlee]

That's the plan mate
The last one I did I actually used an OEM husky 288 bearing but I have an 088 bearing for this one

I got some metal in the mail yesterday for 84 mufflers

 

[Adirondackstihl]

I got some metal in the mail yesterday for 84 mufflers

Pics?

 

[mdavlee]

Here you go Jeremy

 

[Adirondackstihl]

Here you go Jeremy

Look pretty good

 

[mdavlee]

Look pretty good

They sure do.

 

[Larry Joe]

Dang Jake. That's a nice mower.



Yes sir Pat. The Echos are very reasonably priced.

I think the carb is gonna be my choke point on this one. But, I can probably make a pretty good runner out of it.



I wish I would have made a baseline cut with it. It's a lot different than the 500P that I was used to doing.

Now you can have a chance for that baseline cut .

 

[Mastermind]

Now you can have a chance for that baseline cut .

LOL

Good point. I might run a few tanks thru it stock to be sure it's not gonna eat itself again.