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As far as I understand it is normal for the lifters to be noisy upon first
starting up in the morning due to the fact that they are hydraulic and use
the oil to actuate (they need time fill up with the oil). I believe also
that after "spirited" driving they will tap some although I don't have a
good explanation for this - anyone else? I have not heard of any damage
occurring due to tapping but that is obviously just personal experience.
Another device that causes some "tapping" is the vacuum pump bolted to the
side of the head. I believe I saw a post some time ago detailing a cleaning
procedure for this.
> -----Original Message-----
> From: Richard Haroutunian [SMTP:Richard_Haroutunian@inso.com]
> Sent: Thursday, January 21, 1999 10:54 AM
> To: Perry, Chris
> Cc: email@example.com
> Subject: Lifters??
> My 5KCSTQ has been making a bit of noise lately.. A loud tapping noise to
> be exact. It happens every now and then -- when it's cold for a minute or
> so, and sometimes on not-so-cold mornings as well. It seems to go away
> relatively quickly most times -- but I can't seem to figure out why it
> I'll take your suggestion re: making sure the oil is 'topped off' at all
> times.. But, could it be anything serious?
> I currently use Castrol synthetic 10#-30.
> 87 5KCSTQ
> 85 4KSQ
> 82 VW Cabriolet