hydralic lifter noise

[quk@sievers.com (Phil Payne)]

In message <3387ACA2.4B63@netaxis.com> yzin28@netaxis.com writes:

> I struggled with lifter noise for years - replacing various lifters
> (although never the complete set at one time).  The problem was finally
> corrected when I replaced all the valve stem guides and had 3 cracks in
> the exhaust manifold repaired.  These were done at the same time, so I'm
> not sure which actually cured the problem, although I've heard that the
> manifold cracks can make a sound that sounds like lifter noise.

I've found the key difference to be that manifold "ticks" are louder when the 
engine is rewarming.  I.e., drive until the engine is _thoroughly_ at operating 
temperature, park it for 1 - 2 hours, and restart.  

--
 Phil Payne
 phil@sievers.com
 Committee Member, UK Audi [ur-]quattro Owners Club