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Cylinder & head question

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Old May 27th, 2006, 03:46   #1
fixerdude
 
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Cylinder & head question

I opened up a G&G GR300L mechbox, the O-ring on the ported head & cylinder fits loosely. Is this normal? There's ~0.5mm gap between the head and the cylinder.

/edit
Sorry, the O-ring barely touches the cylinder.

Thanks.
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Old May 27th, 2006, 03:47   #2
Droc
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should be normal. the Oring is what makes the seal.
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Old May 27th, 2006, 04:24   #3
fixerdude
 
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The O-ring barely touches the cylinder. Is this because the port holes force the O-ring to expand and seal the cylinder?
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Old May 27th, 2006, 16:11   #4
Mantelope
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Yes, that's exactly why. If it wasn't so loose in the first place, there'd be a serious suction effect when the piston is pulled back at the start of the cycle.
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