16V Lifters ticking?

[jason at scirocco.org (Jason)]

Wait -- valves tapping the pistons?!  All he did was change ignition 
timing, not cam timing!

Changing ignition timing won't have any effect on cam timing!  Don't 
worry... no threat of valves contacting pistons there.

Lifters and ignition timing shouldn't be related at all.  Are you sure it's 
lifters?  It could be that you have advanced the ignition so far that it's 
firing before the intake valve closes completely (and/or before TDC) and 
you're hearing that detonation.  I'd do what you said - put it back to 
stock 6' - 8'  BDTC timing.  That shouldn't have any effect on lifters, but 
if the noise stops, you probably were hearing detonation...

Jason


At 03:12 PM 6/19/2003, Dave Ewing wrote:
>Uh, that wouldn't be clicking lifters, it would be valves tagging the
>pistons.  I've seen this done on a car that came into the shop once and all
>we did is adjust the cam timing back a little with no adverse effects but
>you definately pushing the envelope advancing that much!!
>
>Dave
>----- Original Message -----
>From: "Ryan H" <rhock99@epix.net>
>To: <scirocco-l@scirocco.org>
>Sent: Thursday, June 19, 2003 11:59 AM
>Subject: 16V Lifters ticking?
>
>
> > I over-advanced my ignition timing by a few degrees the other day, and my
>lifters started making a ticking noise when I start the car for a few
>minutes.  Why would advancing the ignition timing make the lifters tick?  Or
>is it completely unrelated?  I'm gonna set it back tonight to see if they
>still tick, but I just wanted to get anyone's input first.  Thanks.
> >
> >
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