Help with new/used stihl 064

[Tyler Olson]

Is there ANY radial play in the ends of the crank?

There is some side to side play, and i a little radial play.

 

[Tyler Olson]

Here are the pictures for the jug, these are the best i can do with out a bore scope. It looks like some tryed to port the intake some. what do you guys think?

 

[smokey7]

That looks like it has injected a bunch of fines. I would bet that jug could be salvaged. Look up "how to clean a cylinder without acid on here. Long story short it's sandpaper on a split mandrel with a die grinder or drill sanding only on the aluminum transfer. Once removed hit the whole jug with 220 then red scotch Brite a finish . New rings and piston. If bearings are bad it will need to be split.

 

[blsnelling]

Before you but any parts, make sure it's a bad bearing and not the bearing loose in the case. I've seen a couple with the case bad.

 

[Tyler Olson]

ok, this might be dumb but how do i get the flywheel and clutch off. Also if i fix the jug is it going to be the same 52mm piston and rings or do i need a bigger one?

 

[Brushwacker]

Flywheel puller is your best bet (buy 1 on ebay or may be here someone has an xtra, borrow possibly or use a local shop) threads on shaft are right hand (counter clock wise to loosen) flywheel side only, clutch side has left hand threads so clockwise to loosen clutch. Standard procedures I believe uses a piston stop or piece of rope, you can find those methods in the forum somewhere. It may be a no no but I take the clutch and flywheel nuts off with impact wrenches, but am careful to go the right direction and gentle on the trigger until they come loose. Crankshaft ends some times break if you are careless doing it this way.

 

[blsnelling]

You're going to need the Service Manual.

 

[Tyler Olson]

You're going to need the Service Manual.

I have a service manual thank to the sticky

 

[Tyler Olson]

So here is a new problem. I believe i am missing some parts of the jug.

 

[Chainsaw Jim]

Yeah I spotted a problem on the transfer port in the first set of pics. I see that it really is one and not debris stuck to it.
It appears that this saw has already had bearing problems to cause all that damage. It looks like they ground on it to reuse.
It is total junk. I'm betting the case is spun out from multiple sets of bad bearings. Funny thing is the piston is probably still good.

 

[Tyler Olson]

So this saw just became a parts saw?

 

[Chainsaw Jim]

Don't let our predictions determine the saws fate. It needs a good inspection to determine whether or not it is in the condition for a rebuild.
Don't try to remove the flywheel or split the case without the proper pulling tools or you will risk damaging beyond repair.

 

[Tyler Olson]

after looking more the flywheel is broken and the oil line has been JB welded into place. I am not sure if it is worth saving at this point, And the fuel tank leaks.

 

[Chainsaw Jim]

Can we see what the case looks like? The flywheel is easily replaceable and the oil line jb weld can easily be drilled out with the right size bit.

 

[Tyler Olson]

Here you go

 

[smokey7]

That flywheel is just fine to use with a missing fin.

 

[Tyler Olson]

Ok, what about the oil line?

 

[bayard]

it might take 200$ or more to get this saw right. milling with it will push any saw to its design limits. it needs to be built right.and even then they blow up sometimes.

 

[Tyler Olson]

I would be fine with $200. I just don't want to put anymore money into it if I can't do what I bought it for.

 

[blsnelling]

You need to get the case split in order to determine if the case is any good.

Where is the fuel tank leaking?