Does a New Valve Have a 'Break-In' Period

anon1

Seaman
Joined
Sep 5, 2007
Messages
71
Hello,

350Magnum needed a new valve and also had a complete valve job done to both heads.

Should the valve that was replaced be making noise? Does it take time to quiet down?

Thanks.
 

Bt Doctur

Supreme Mariner
Joined
Aug 29, 2004
Messages
19,344
Re: Does a New Valve Have a 'Break-In' Period

No and No. Somethings not adjusted properly
 

Jeepster04

Chief Petty Officer
Joined
Jan 5, 2009
Messages
481
Re: Does a New Valve Have a 'Break-In' Period

Was it making the noise right after you had them rebuilt or soon after? May need to check and make sure none of the rocker arms are loose.
 

mkast

Lieutenant Commander
Joined
Nov 6, 2002
Messages
1,934
Re: Does a New Valve Have a 'Break-In' Period

Should the valve that was replaced be making noise? Does it take time to quiet down?

What is the oil pressure on startup? Engine at operating temperature?
 
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