Stihl 090 restore

[Frank bierce]

Well...this is going to be my first full year down, powder, restore saw.
Picked this carcass up for just this occasion. Was told it was froze up..but it had the majority of the body parts intact.
Main missing parts are clutch/sprocket, and carb. I have two other complete saws...so one will get tore down to complete this one.
This one was frozen up pretty bad. Still have yet to release the piston from the cylinder. Hopefully be able to salvage the cylinder. Time will tell. Looks like the piston was scored pretty good :/.
Here are a few pics of how I received it...

 

[Frank bierce]

Here are a few photos during, and after tear down. Quite a bit of corrosion build up in the bottom end..hopefully the cases will be useable. I’ll try to get them cleaned up a bit better tomorrow after work.

 

[Dub11]

 

[Scotty Overkill]

Sweet. How can one not look forward to a Stihl 090 thread?

I'm in!

 

[Mastermind]

This is gonna be good.

 

[Whitty21]

subbed for this one

 

[Frank bierce]

Will not be a fast paced project. As long as I remember to take pics...I’ll be updating as I go along. I’ll be getting a pile ready for powder, and procuring needed seals/gaskets/bearings etc.
hoping to have it done for the PNW gtg in June.

 

[GoBigBlue1984]

Shewwww Doggy! Count me in for this one

 

[Scotty Overkill]

I wanna convert my old Contra to a 66mm P/C some time soon.....just gotta quit spending the $$ on other saws and commit to buying the parts......

 

[Frank bierce]

I wanna convert my old Contra to a 66mm P/C some time soon.....just gotta quit spending the $$ on other saws and commit to buying the parts......

View attachment 113995

Very nice!

 

[Scotty Overkill]

Very nice!

Thanks, brother! Bought it from a guy in Austria two years ago on ebay.....for 430 bucks!!

Little bit of tuning work, and she ran like a top!

 

[Frank bierce]

Well. Bottom end on this is pretty rough inside. Here is a photo of the worst part. What do you think?? Usable?

Edit with a second pic...

 

[jacob j.]

That looks pretty rough, but with a lot of clean-up, it would be usable again. I wouldn't put it in a customer's saw but I would my own.

You'll need to check around the bearing pocket real good.

 

[Frank bierce]

That looks pretty rough, but with a lot of clean-up, it would be usable again. I wouldn't put it in a customer's saw but I would my own.

You'll need to check around the bearing pocket real good.

Bearing pocket seems to be in decent shape.
Since I have to tear down one of the others, I may just use a different set of cases. I’ll have to think on it.

 

[Onan18]

Bearing pocket seems to be in decent shape.
Since I have to tear down one of the others, I may just use a different set of cases. I’ll have to think on it.

Get @Glock37 to blast and powder them, I have seen worse run.

 

[Basher]

As long as its structurally sound and can be made airtight it will work, also have seen worse ones still running. Clean it up so there won`t be bits getting loose, they find their way into the bearings along with between the piston and cyl walls, not good.

 

[Definitive Dave]

Just my 2 cents devalued by inflation, etc. i would restore the nicest one to showroom condition rather than the most beat up example. Then stick a 10 cube top end on the ratty one and build a fun gtg hot rod
But then i am a different breed of cat
Dave

 

[Woodpecker]

Just my 2 cents devalued by inflation, etc. i would restore the nicest one to showroom condition rather than the most beat up example. Then stick a 10 cube top end on the ratty one and build a fun gtg hot rod
But then i am a different breed of cat
Dave

Now we're talkin!

 

[Definitive Dave]

70mm turns a 16" bar with authority, requires an aftermarket electronic ignition and a big modified carb but......

 

[Frank bierce]

70mm turns a 16" bar with authority, requires an aftermarket electronic ignition and a big modified carb but......

Shoot...it’s only money