Piston slap

Joined
Apr 15, 2007
Messages
11
I keep reading in the forum about Piston slap. Is this sound noticeble at idle, higher rpms , or all the time? Sometimes after startup for the first 1 or 2 minutes of running the motor can seem a little noisy. It seems to quiet down after a few, and when I`m riding the motor sounds fine.It pulls like a beast and I have great compression- 11,200 orig miles on a 71 roadster. Is this just noise until oil pressure builds?

Thanks again,
Mike
 
Joined
Apr 7, 2004
Messages
1,691
As heat expands the rings and pistons the slap will go away. Not considered to be a make or brake thing on engines just a bit annoying.
 
Joined
Nov 10, 2006
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1,370
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Mike,
Pinking or pinging can be mistaken as piston slap. If the noise greatly bothers you try retarding the ignition a couple of degrees.
Cash
 
Joined
Nov 10, 2006
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Mike,
Pinking or pinging can be mistaken as piston slap. If the noise greatly bothers you try retarding the ignition a couple of degrees.
Cash
 
Joined
May 7, 2005
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5,948
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Or if your are on points fit EI which has a milder advance curve and takes untill 5K not 3K before being fully advanced.
 
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