Advise needed, Stihl 084

[Coach]

Hey guys.  Wondering what do with my Stihl 084. It's had an easy time most of it's life sitting in the back of a service truck, but the compression is now at 125psi.  What are these big saws typically?  It starts easy and runs great if that means anything. 

I do have an AM cylinder/piston kit, but maybe a better idea to just get an OEM piston. Can't see the cylinder walls on the muffler side, but the opposite side looks perfect.

[sawguy21]

It sounds healthy, advertise it on e-bay or a local buy and sell and see what happens.

[snobdds]

List it for sale on here, if that's what you're planning on doing.  

Then we can talk.  

[Coach]

 

[Coach]

If someone interested in buying here, I will honor the selling fee the forum asks for. 

[mike_belben]

If the rope will hold the saw up your gauge is probably reading low.

[snobdds]

If someone interested in buying here, I will honor the selling fee the forum asks for.

make a for sale ad here and list a price, I'm interested. 

[ehp]

never go by what a gauge reads unless you use that gauge on everything so you get a good idea on how it reads , length of the hose on a gauge can throw things off , the type of part that screws into the cylinder can throw the reading off , where is the check valve , is it close to the part that screws in sparkplug hole or on a 12 inch hose up by the gauge . Is there a the piece added to the end to change the spark plug thread size , that one will really throw the reading off cause you just added a large volume area to the combustion chamber 

[ehp]

if saw starts and runs good then your good to go , sorry but I'm a OEM guy only but getting parts for that saw most likely will be hard to get now 

[BradMarks]

Coach:  You are being coached!  There is specific language needed in your post if you intend to advertise anything, along the lines of "I've read and agreed to.......".  

[Coach]

Coach:  You are being coached!  There is specific language needed in your post if you intend to advertise anything, along the lines of "I've read and agreed to.......".  

I'm aware of it, have sold stuff in here in he past, will get at it one of these weeks. 

[Coach]

Ok, i lifted the cylinder, looks good.  Only replaced the rings, cleaned off a bit of transfer.  I'm getting 150psi compression now, do think it's reading a little low.  I was going to get rid of the base gasket, but left as it is, has .040 squish.  The saw is listed for sale.

[Real1shepherd]

Can't speak for Stihl, but on large Husky cc saws back in the day, 150psi was fine. If you put back in Cabers, that will come up a bit in a couple of tankfuls.

Some of the older Jonsereds had crazy compression....like over 200psi.

Kevin

[ehp]

150 psi is fine and it will run good at that compression