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Author Topic: Gx440 gen 2 adjustable flywheel  (Read 371 times)
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jjsmallengine
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« on: April 18, 2014, 08:13:52 PM »

I was turning my motor over and it seems as the motor is firing to soon I have check the cam timin and valve lash. My only thing is the adjustable flywheel I have on it. It is set to the - side of the adjustment. Would spinning the flywheel more towards the + side crate a later spark?? Please any advice appreciated!
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Builder and own of 1969 murray FX/S mower
Paul steinmetz
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« Reply #1 on: April 18, 2014, 08:46:14 PM »

i posted you on facebook why it is.
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Jonathon Kaup
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« Reply #2 on: April 18, 2014, 11:16:13 PM »

It started up and ran off Sprays of carb clean. Then suddenly it made a loud ping. As if something hit the block or valve cover. Sounded like a bell. Then it started couple more times. And now it'll do a full rotation then spin counter clockwise half the rotation. Not sure what's goin on
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« Reply #2 on: April 18, 2014, 11:16:13 PM »

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The Tank
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« Reply #3 on: April 18, 2014, 11:18:03 PM »

Sounds like a sheared flywheel key.
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Frank "The Tank" Woods

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jjsmallengine
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« Reply #4 on: April 18, 2014, 11:58:31 PM »

Ill be shocked. It's all brand new parts. But I'll check it out!
It made that ping. Then I tried starting it again and it started, I wasn't sure what it was. Then when it started spinning and so on. It made it again (pin sound that is) and it will only back fire
Unbalanced crank shaft wouldn't do that would it?
Is it possible I dropped a valve?
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Paul steinmetz
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« Reply #5 on: April 19, 2014, 07:46:20 AM »

tanks right my buddy did that few days ago. Shifted timing off. No I ran with balancer in it with unbalanced crank. Most people run them that way.
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Jonathon Kaup
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« Reply #6 on: April 19, 2014, 07:48:31 AM »

Kk ill check key first.
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