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Stihl 066 repair manual, how to take out drive bearings?

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017



one turn high and low 66 has compesator carby willrun rich up high but will lean under load

Posted on Sep 03, 2008

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SOURCE: stihl chainsaw 066 died

mr siegs
remove the muffler and look inside the cumbstion camber and look at the piston.if you see marks (score) on the piston the piston and cylinder are bad and need to be replaced.this is caused from a lack of lubercation to the cylinder,possible water in fuel,spraying starter fluid into the saw,bad oil to fuel mixture,old fuel has no lubercating value.any more questions please feel free to contact me

Posted on Mar 12, 2009

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SOURCE: 066 stihl, have all screws out but can't split case.

Assuming all screws are out, intake, exhaust and cylinder, oil pump and all oil pump related items are removed Screw the clutch carrier back on to the crankshaft (this protects the crank threads) and tap the crankshaft with a brass hammer. (TAP not Whack.) The tapping should loosen the 2 halve of the crankcase. You must replace the crankcase gasket.

Posted on Apr 10, 2009

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SOURCE: What is the red light

here is a copy from an article i was reading

It features a "red light" on the right hand side above the tuning screws which illuminates at a set RPM to assist in tuning the high speed mixture screw, which is great when using the saw out in the field as no tachometer is required to give the saw a quick tune before commencing work. It allows peace of mind knowing that your saw is always tuned correctly and not running a lean mixture which causes damage very quickly. Incorporated with this "red light" system is a rev limiter, so even if the saw is tuned incorrectly it will not allow the saw to over-rev due to a lean out condition and blow up the saw!!

Posted on Jan 02, 2011

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SOURCE: keep burning up piston on

It sounds like you are running lean. Not a lean oil/gas mix but a lean Air/fuel ratio. This engine runs hot as a high performance engine. any air leaks such as crank seals, manifold gaskets or muffler gaskets can give you too much air for the fuel coming in.

Secondly from the fuel side:
Ethanol (curse it) combines with oils that have no nondispersants making a white chalky poweder in the fuel system causing less fuel to mix with air. any blockage or pin hole leak can cause less fuel to be brought into the engine thus less cooling and lubricating.

Your carburetor and fuel filter need to be serviced and adjusted correctly or they will affect the mix.

When done the engine should run no faster than 13,000 rpm top no load speed.
This engine should idle smoothly at 2,500 with no more than 150 rpm change

if the speed is not as listed above when the rebuild is done you need to go back into the machine.

Call up a shop like www.arcolawn.comto get a EDT8 tach. it is well worth the money.

good luck


Posted on Feb 12, 2011

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