Author Topic: Typical China Quality  (Read 376 times)

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Offline Eccentric

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Re: Typical China Quality
« Reply #10 on: April 21, 2015, 08:35:27 pm »
10-series McCullochs have had a long, thin spring inside their fuel lines since they were released in 1965.  The AV models have the same spring in the impulse hose as well.
-Aaron

For older saws:
Tune the H side so that it 4-strokes (burbles) at WOT unloaded and just cleans up when under load.
When you lift cutting load, the saw should immediately revert to 4-stroking.  Fine tune the transition point for the wood you're cutting.

Offline aclarke

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Re: Typical China Quality
« Reply #11 on: April 21, 2015, 10:12:12 pm »
Lol!, I f××ked up the oem replacement and ended up using Tygon.  Heat gun would have saved a lot of trouble.  I'll remember that

Online srcarr52

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Re: Typical China Quality
« Reply #12 on: April 22, 2015, 10:15:02 am »
10-series McCullochs have had a long, thin spring inside their fuel lines since they were released in 1965.  The AV models have the same spring in the impulse hose as well.

Anti crush springs?

Offline Eccentric

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Re: Typical China Quality
« Reply #13 on: April 22, 2015, 11:18:17 pm »
10-series McCullochs have had a long, thin spring inside their fuel lines since they were released in 1965.  The AV models have the same spring in the impulse hose as well.

Anti crush springs?

Yep.  Both the fuel lines and impulse lines make a sharp bend, and could collapse without the springs.
-Aaron

For older saws:
Tune the H side so that it 4-strokes (burbles) at WOT unloaded and just cleans up when under load.
When you lift cutting load, the saw should immediately revert to 4-stroking.  Fine tune the transition point for the wood you're cutting.

Offline mikehonda

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Re: Typical China Quality
« Reply #14 on: October 24, 2015, 08:38:31 am »
China is making alot of the stihl smaller saws now which are poor quality saws, however they are also making lots of after market parts that seem to work well for other stihls. On the fuel lines i put elbows in them if they kink too much. A spring does work however if it is made from anything that will rust it won't be long before its a problem.

 

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