Echo 620p FKWS Build

[farminkarman]

I haven’t done a build thread in a while. I am gonna try to document my steps in voiding the warranty on this 620p. The saw is fresh from the box as it came from Bruce.

 

[farminkarman]

Nothing surprising or noteworthy on the teardown…the base gasket ripped apart like they always do on these.

 

[srcarr52]

The typical goofy Echo transfer ports!

 

[farminkarman]

In the past, I haven’t cut the squish band on these. I’m going to do it on this one.

 

[farminkarman]

The typical goofy Echo transfer ports!

Yeah, they are kinda weird. The exhaust port is a head scratcher too.

 

[Catfishclark89]

I’m here for this!

 

[farminkarman]

I’m here for this!

I wish I had time to keep cranking through this build today. Hopefully I can pick it back up tomorrow morning.

 

[EFSM]

These old school saws are something else when done properly. That long stroke can make real power. I hope they keep building these for a while.

 

[huskihl]

These old school saws are something else when done properly. That long stroke can make real power. I hope they keep building these for a while.

The long stroke is almost too long in these for real power. They do well with a 52mm bore cylinder on them though

 

[farminkarman]

The long stroke is almost too long in these for real power. They do well with a 52mm bore cylinder on them though

That would be a fun build. I remember you had your hands on one of those creations a while back.

 

[huskihl]

That would be a fun build. I remember you hand your hands on one of those creations a while back.

Cole sold his 7900 because of it. Somebody was crazy enough to buy it…

 

[srcarr52]

These old school saws are something else when done properly. That long stroke can make real power. I hope they keep building these for a while.

I think the one I did a while back pepped up quite a bit. With the longer stroke I kept the intake and exhaust duration a bit shorter.

 

[srcarr52]

The long stroke is almost too long in these for real power. They do well with a 52mm bore cylinder on them though

What cylinder was used for that?

 

[farminkarman]

What cylinder was used for that?

MS460 IIRC

 

[huskihl]

What cylinder was used for that?

^

 

[wolfriverchainsaw.com]

Looks like fun, nice to see echo getting some love.

 

[farminkarman]

Looks like fun, nice to see echo getting some love.

I don’t have a ton of experience running the Echos, but I have always liked them. They are nice saws to work on, and they seem to be well made. The biggest issue I see with them is lack of dealer support…at least where I live. Thankfully several places like HLSupply and Sawsalvage sell parts for them.

 

[srcarr52]

MS460 IIRC

I ran the numbers... I could see that working well. You wouldn't have to touch the top of the exhaust port or transfers.

 

[farminkarman]

I ran the numbers... I could see that working well. You wouldn't have to touch the top of the exhaust port or transfers.

Sounds like a good SCARR project

 

[srcarr52]

Sounds like a good SCARR project

I have plenty of projects in the works, the biggest one being a 42'x64'x16' post frame building that I am buttoning up the framing on.