Stihl 070 stalls in cut

[Robin Wood]

ok
piston has minor vertical line scratches scoring
but compression is still ok
clutch is new not drum

 

[Robin Wood]

not the carrier set, new bearings though

 

[Eddy_t]

Replace the drum, that should hopefully stop it slipping


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[Robin Wood]

alright i will first try richen it like you said 1/8 ccw
if it doesnt help, new drums i guess
will also file the cutter teeth to 20 degree till its very sharp

 

[Eddy_t]

alright i will first try richen it like you said 1/8 ccw
if it doesnt help, new drums i guess
will also file the cutter teeth to 20 degree till its very sharp

The richening won't help, it'll just stop the saw being borderline lean!


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[Robin Wood]

didnt know that,
ok new drums anyway

 

[Robin Wood]

today i was watching my buddy cut a log with his contra
i just realized my 30" bar vibrates way more than his(28")
mine vibrates left-right like rattle snakes tail on the tip when stumping
could it be the chain ?

 

[Eddy_t]

Solid or roller nose? Check the chain and bar, it may have been pinching in some places


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[HarleyT]

Show us a pic of the bottom of your chains and the pic of the drive teeth of your sprocket....

 

[Robin Wood]

solid nose
bottom of chain=drive links ?
pics coming soon

 

[Robin Wood]

sorry for the late reply been busy
heres the pics

 

[Robin Wood]

 

[Eddy_t]

That clutch drum is showing signs of wear already?! Must be made of recycled husky bars! Chain looks fine, check the bar isn't splayed.


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[Robin Wood]

looking at the drive links wear makes me think are the links fat ? or the bar is a lil tight because its new ?
bottom of the drive links are bent and chipped btw

 

[Robin Wood]

clutch drum wasnt changed, bar is new and not splayed

 

[Eddy_t]

Bud, that drum is blue! Your clutch was slipping badly! The wear on the chain looks normal, you can still see the numbers! Is your chain tension correct?


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[Robin Wood]

yes if u notice the OP, i did mention previous clutch was blue so i changed to new clutch.
but if u look closely the drive links are skinned abit on both sides "bar groove" too tight ? chain gets loose after some period of cutting as usual, nothin weird on that though

 

[Eddy_t]

Post 64 I suggested you replaced the drum. The chain looks normal in regards to wear.


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[Robin Wood]

yes u did, thought could get away with it LOL
ok will change the drum and see how it fares...

 

[Robin Wood]

holy smoke !!!
dude where did you get those av handles from ?!