From:    JordanVw@AOL.COM
Subject: Re: turbocharger: how to destroy it

chris wrote:

> best bet is to get a turbo timer, (some late model Supra turbos have
> these stock- different than the one im describing, tho) which runs
> engine for about a minit or 2 after you turn off the key , running oil
> thru the turbocharger, to prevent "coking"(shutting the car off after
> running high RPMs (super high

Can be bought aftermarket for ~$100, or made from any suitable time
delay relay, like a glow plug relay. Leaving the temp sensor terminal open
gives you a 1 min time delay on the std VW fast glow relay.

> exhaust gas temps) and oil just sits in the turbocharger, and "cooks"...kind
> of like clogging your arteries...which is the major cause of turbo failure...)

I like the analogy!

> or you can do what i do, and everyone w/ a turbo charged car should do
> - i let the car idle for at least 2 minutes prior to shutdown...to
> cool down the turbo.

Or just drive lightly for last few minutes before stopping. Installing a
pyrometer to measure EGT makes sense, and that will tell you when you
need to idle a while before shutting off.

/Martin
--
Westy 1.9l Turbo Diesel
Quantum 1.6l Turbo Diesel

Martin Jagersand                 email: jag@cs.yale.edu
Computer Science Department             jag@cs.rochester.edu
Yale University

        Slow down and visit the VW diesel Westy page:
          WWW: http://www.cs.rochester.edu/u/jag/vw
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