Another German.....Solo 662 Build

[awol]

Well, I've had a hard time deciding which saw to do for this shindig, but chose the 662 for several reasons. There is not a lot of material posted about them, they have a nice long stroke at 38mm, and I have a really good selection of them to choose from. I have a couple versions of it finished, and will have them at the gtg this weekend. Pics and vid will also be coming.

 

[exSW]

Great. I've got bits and pieces of a 667 here. Learning opportunity.

 

[ajschainsaws]

That must be nearly the longest stroked 60cc class saw going interesting can't wait to see this thread grow

 

[Red97]

Nice.

Until my recent Google search, never seen one of these.

Looks like a pretty solid saw.

 

[Chris Zautner]

Nice.

Until my recent Google search, never seen one of these.

Looks like a pretty solid saw.

I had one, well a none running one...... was a very nicely built saw for sure!

 

[Four Paws]

I had a 667. So did @David Young

 

[rburg]

Did the 665 replace the 662? I am not too familiar with Solos.

 

[Locust Cutter]

Subbed!

 

[Four Paws]

Well, I've had a hard time deciding which saw to do for this shindig, but chose the 662 for several reasons. There is not a lot of material posted about them, they have a nice long stroke at 38mm, and I have a really good selection of them to choose from. I have a couple versions of it finished, and will have them at the gtg this weekend. Pics and vid will also be coming.

46mm bore?

 

[awol]

I don't know if the 665 really replaced it, the designs are much different; one thing I have found they do share, is cylinder base bolt pattern.
Yes, the 662 is 46mm bore, and the 667 is 48mm.

The stock timing numbers are very interesting: 662 stock with base gasket EX97 IN72 TR116 667 stock with base gasket EX98 IN70 TR115 The very low blowdown and intake numbers are for a reason........

Here are a few of the victims in various stages of assembly. They have the typical German over-engineering.


A side view. Notice the very nice intake and exhaust angle.


A pic of the lowers and combustion chamber.



The stock intake port; it's kinda small, but so is the carb and intake. This though, is the shape I strive for when porting.

 

[Chris Zautner]

I don't know if the 665 really replaced it, the designs are much different; one thing I have found they do share, is cylinder base bolt pattern.
Yes, the 662 is 46mm bore, and the 667 is 48mm.

The stock timing numbers are very interesting: 662 stock with base gasket EX97 IN72 TR116 667 stock with base gasket EX98 IN70 TR115 The very low blowdown and intake numbers are for a reason........

Here are a few of the victims in various stages of assembly. They have the typical German over-engineering.
View attachment 42535

A side view. Notice the very nice intake and exhaust angle.View attachment 42534


A pic of the lowers and combustion chamber.
View attachment 42537


The stock intake port; it's kinda small, but so is the carb and intake. This though, is the shape I strive for when porting.
View attachment 42536

Does one of those saws on that bench look familiar to me Alan?

 

[Four Paws]

That's a pretty high exhaust from the factory! What did the squish clearance measure?

 

[CR888]

No brand has impressed me in stock form like a Solo. Whether its a 681 saw or 142 clearing saw or 67cc backpack blower. I have many husky/Stihl products and Solo too. When I run them I think why the hell don't folks know about this brand.

 

[RI Chevy]

What make them better?

 

[mdavlee]

What make them better?

Best running stock saws in almost every cc class.

 

[RI Chevy]

Wow. Weird that they are not more popular.

 

[Four Paws]

Wow. Weird that they are not more popular.

Marketing and dealer support.

 

[David Young]

Here is a vid of the one I had.
I sold it on ebay to thin out some saws. I think I got less than 150 bucks for it. No one knows what they are. Good torque easy start nice low idle.

When I started it for the first time it would idle but not rev at all seemed odd. Turns out the muffler was closed off with mud. easy fix ran like a top.

 

[David Young]

so whats the reason for low intake and little blowdown?

 

[mdavlee]

Case compression is my guess. Lots of volume in those lowers.