Re: Hydraulic Lifters

[Phil Payne <Phil@sievers.com>]

In message <199502061530.AA28110@swiss.ans.net> HoekstraMC%DFEG%USAFA@dfmail2.usafa.af.mil writes:

> I'm sure this is old hat for most quattroeurs, but I'm unable to find the 
> answer in the faq.  Here is my question:  how serious is that 
> clickety-clack sound at startup?  Do you just live with this?  Do you 
> change the oil viscosity?  Are the valves adjustable?

Yeah, it's old hat to all of us, and we love it - it puts lesser mortals off 
buying the cars we love and keeps the price down.
 
a) Yes, it's normal.
 
b) It's significantly influenced by the oil filter - Audi's "turbo" filter 
cartridges have a non-return valve that keeps oil up in the oilways when the 
engine is switched off.  Not all turbos have hydraulic lifters - not all 
hydraulic lifters have turbos.  I believe the filters are otherwise 
interchangeable.
 
You might decide not to worry about it until you sell the car.  Then have a 
"turbo" cartridge fitted at the last service.

Phil Payne
Sievers Consulting UK
Vice Chair, UK Computer Measurement Group
Phone    +44 385 302803
Fax/BBS  +44 1536 723021
Fido     2:2503/415
CIS      100012,1660