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Heads and Cylinders All about your porting, compression, rings, cylinder and piston modifications to your bicycles engine

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Old 06-23-2016, 02:33 PM
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machinegun4784 machinegun4784 is offline
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Default Piston/cylinder clearance

What should it be? I actually couldn't find it anywhere.
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Old 06-23-2016, 08:05 PM
crassius crassius is offline
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Default Re: Piston/cylinder clearance

all over the map with these (probably why there's so much diff in how diff motors run)

rings are worse
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Old 06-23-2016, 08:22 PM
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machinegun4784 machinegun4784 is offline
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Default Re: Piston/cylinder clearance

Any idea what would be good then? I believe 2 or 3 thousandths is standard.
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Old 06-24-2016, 11:19 AM
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sbest sbest is offline
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Default Re: Piston/cylinder clearance

Quote:
Originally Posted by machinegun4784 View Post
Any idea what would be good then? I believe 2 or 3 thousandths is standard.
Yes, on an air cooled 40-47mm with a cast piston, this will be in the ballpark.
Forged pistons require more, water cooled require less.

Steve
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