Re: 16v exhaust valves

["Steven Toughill" <stoughill@home.com>]

Type 2 and 914 engines also use sodium filled valves, as do some Type 3's

Steven Toughill
ASE Crt. VW Technician
Volks-Tech


-----Original Message-----
From: Scott F. Williams <sfwilliams@worldnet.att.net>
To: Doolbnroht@aol.com <Doolbnroht@aol.com>
Cc: scirocco-L@scirocco.org <scirocco-L@scirocco.org>
Date: Sunday, June 27, 1999 10:01 AM
Subject: Re: 16v exhaust valves


>Doolbnroht@aol.com wrote:
>
>> but here is the question. tonight i read that the 16v exhaust valves are
sodium
>> filled and have special discarding instructions (don't belive me? read it
>> yourself!).
>>
>Yeah, don't believe the manual instructions about immersing them in
kerosene.
>What you really want to do is open them up and throw them in your nearest
>swimming pool! Just make sure that you do it on July 4th so that you don't
take
>anyone off guard. :^)
>
>> but anyway i wanted a good explaniation as to why they are filled with
sodium.
>> hope you all can help me.
>
>The sodium filler is there to absorb heat. I don't know how explain this on
an
>engineering-level. Basically, though, it keeps the valve from warping from
the
>heat and reduces the engine's tendency to pre-detonate. I believe that the
>Corrado G60 is the only 8v motor with these valves. Anyone know if the TDI
cars
>have'm too?
>--
>Scott F. Williams
>NJ Scirocco nut
>SCCA ProRally driver
>Hotrod Rabbit GTi
>
>
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