Miata Mailing List: April 1994, Message #31
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   From: tom.manson@pobox.com (Tom Manson)
Subject: Re: Valve Chatter
   Date: Sat, 2 Apr 1994 12:13:55 -0500

Good Day Miateers,
For some time now I have been reading the communications regarding valve
chatter on starter.  My Miata has seldom experienced this condition,
although I will admit that I changed to 5W40 some time ago in order to
avoid such chatter (as warned by the MCA and some of you on the net).
However, the other day I was enjoying myself with the RPMs the other
day, stopped (turned off the engine) and went into a shop for only a few
minutes.  When I came back out a few minutes later and started the car,
the chatter occurred.  This was the first time that I had heard it for
any length of time (normal start-up chatter is usually to short to time
or even to make sure that I recognize).

I was obviously concerned since I knew the car to be warm and the oil to
be fully circulated (not laying in the sump after a night's rest).

Milton Horst mentioned this and I felt a little reassured since it had
happened to someone else, and then Andy discussed it.  Apparently this
(post-autoxing start-up clatter) is not critical.  Does anyone mind
concurring with this?  Are there other autoxers out there that have
experienced this post-autox start-up chatter?  Or anyone else for that
matter!
Tom
Manson@fsd.com
Tom.Manson@pobox.com