stihl 064

[pixie]

hmm, replaced clutch springs with new genuine replacements. unless they were not for 064 as described, not sure if that is a problem or not.

 

however air leak looking more likely as the saw does take time to run down when you blip throttle - will do pressure check at the weekend now !

 

thanks for the input !

[pixie]

Spud, what do you use for pressurising crankcase?

 

pix

[spudulike]

Spud, what do you use for pressurising crankcase?

 

pix

 

A modified gunson lo gauge and a bicycle pump!

[Marc]

Spud's your man if there are running problems to be found, although just a thought, you admit it's a be of a hobby for you and you seem to take pride in running and maintaining a saw, and the 064 is a fine saw one of my favourites.

 

Can I assume you've not used many saws of this size and class? I only ask as there may be nothing wrong with the saw just your expectations, you run a small Hisky which is a nice zippy sneding light firewood saw, the 064 can be a bit of a chugger and more about torque than zip, even our 661 with 25" bar you cannot really lean on it and expect it to fly, keep it sharp and let it cut at its pace.

Also what tooth is your sprocket?

 

If you want a smile one your face whack an 18" bar on it and watch it fly.

[pixie]

Holy 2 stroke smoke batman we've been rumbled !

 

Marc, you are quite right, this is definitely a hobby, i think i am definitely a frustrated arborist as ringing up some big wood is very therapeutic! (though perhaps if i did it all day every day maybe my nice comfy office job in the middle of december would be a lot more appealing!!)

 

Having had a number of saws for home use, i treated myself to a 346xp and that just led to a couple of ms200's and a hankering for a big saw and in the budget for hobbies, everyone seems to rate the 064 as a do all medium-big saw, hence the purchase.

 

its currently down to the base crankcase and cylinder for a pressure test and having ordered a flywheel puller this morning, i'll probably replace the crank oil seals as it is stripped already (it is nearly 20 yrs old and nitrile/rubber bits usually have a service life of 7-9 years) though i'm hoping its the carb boot!

 

18" blade is very tempting, but have one for the 346 and boy is that a featherweight after an hours cutting with the 064 !! (yes i know wussy office boy, but thats how it is !)

 

it has definitely been worth having the conversations especially with spud in particular, as the running on i would not have thought about, i thought is was the bigger engine/chain combo etc, so it may have saved me a piston/barrel in the near future as it looks clean as a whistle inside at the mo

 

thanks again for all your help

 

pix

[pixie]

well, have stuck 9psi into the 064 and left it for a couple of hours and no change in the needle, so no air leak ! (unless i've done something wrong...) biggest job was getting exhaust plate to seal, but have done it now and no issues, so will go to plan b and not change the oil seals as more chance of wrecking something else. have cleaned bits i didn't know existed and found some silicon sealer in the air box between orange carb housing and the fuel tank - is this a normal mod or just an attempt to prevent dust leaks into the airbox. (it has the original full mesh filter and non compensating carb on it ) have removed it for now, but will replace if someone can give me a good reason too!! it seems dust getting into the airbox is a weakness in the 064 ?

 

will reassemble tomorrow and reset the carb and go from there, i think marc was probably right, not used to big stuff and paranoid about having a lakeyboy experience (ouch!!)

 

pix

[Ray1]

The silicone is normal. Every 64 I've done has been the same.

[pixie]

thanks

 

mine is an early saw and so has the welded and screwed tank so will just fillet the edges with sealer to try and seal it, don't really want to disturb the plastic welds.

 

ta

 

pixie

[Marc]

Sounds like you have a good un there Pix, what sprocket is the saw running?

Obviously i cannot think of a better hobby than using chainsaws, what i would think would be fun is stick a 15" bar on your Husky and have an 18" and 25" for the 064

[pixie]

sorry marc you did ask before,

 

saw was running a 7 tooth spur gear (probably original), which to be honest had some wear on it but was servicable, but dropped on a unused. still in the wrapper, genuine stihl 3/8 7T rim sprocket and clutch drum for £9 which i put on it along with new bar and chain for good measure (wish that had been £9!!).

 

the husky has a 15" bar on it normally (in fact is just about to get a new 15" bar and chain fitted in the next few weeks, 3 weeks of firewood duty on old skirting board and garage panels as well as lots of rusty nails has not been kind...) and only gets the 18" on for slightly heavier jobs, which it does pretty well for a small saw.

 

I'll price up a 18" bar and chain for the 064 and see if the hobby fund will stretch! (suspect will have to wait:thumbdown: )

 

saw now back together with silicone rubbed into airbox joins as best can do. will wait for it to set and fire it up tomorrow evening when back from work, then re set carb and take it from there!

 

pix