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[HusqvarnaDave]

Thanks

 

[singinwoodwackr]

Looking for misc 066-660 parts ..
Need fan side OEM case,
OEM crank
OEM throttle, spring, and operator presence level
Thanks

Just an fyi…early, and possibly later 066s were matched pairs so getting just one side is a complete crap-shoot as far as matching goes. .020-.030 mismatch of the deck is common. I don’t know about the 660s.

 

[HusqvarnaDave]

Thanks for the information, I appreciate it

 

[Woodslasher]

Just an fyi…early, and possibly later 066s were matched pairs so getting just one side is a complete crap-shoot as far as matching goes. .020-.030 mismatch of the deck is common. I don’t know about the 660s.

I built a late 066 (660 style cases) with bastardized case halves and it lined up perfect.

 

[EFSM]

Just an fyi…early, and possibly later 066s were matched pairs so getting just one side is a complete crap-shoot as far as matching goes. .020-.030 mismatch of the deck is common. I don’t know about the 660s.

Wouldn’t that result in wildly varying squish/timing numbers if the cylinder deck is different on each crankcase? Or am I misunderstanding your post?

 

[singinwoodwackr]

Wouldn’t that result in wildly varying squish/timing numbers if the cylinder deck is different on each crankcase? Or am I misunderstanding your post?

Duh, not to mention trying to get it to seal.
I found this out the hard way. There is actually a fair amount of info on this here and on AS.
Husqvarna never had issues…only Stihl.

And then there’s the question of crankshaft alignment…

 

[EFSM]

Duh, not to mention trying to get it to seal.
I found this out the hard way. There is actually a fair amount of info on this here and on AS.
Husqvarna never had issues…only Stihl.

And then there’s the question of crankshaft alignment…

I’ve mixed and matched crankcases on Husqvarna and Echo, but never a Stihl of that era.

 

[jacob j.]

I’ve mixed and matched crankcases on Husqvarna and Echo, but never a Stihl of that era.

Not all of the earlier Stihls have the issue but it was more prevalent with the saws made in the 1980s-late 90's. The 660s and subsequent large Stihls have less of an issue with it. Squish clearances had more variance in the same era of saws as well. It was pretty routine to see one 044 with .025" and another in the same batch with .035".