[V8] Sodium-filled Exhaust Valves
Dave Saad
dsaad at icehouse.net
Thu Sep 20 21:26:50 PDT 2007
The V8 definitely does. There is a discussion in the manual about
sawing them in half and dropping them in a bucket of water to discard
them.
Dave
On Sep 20, 2007, at 9:35 PM, Tony and Lillie wrote:
> I work at a VW shop where we have done quite a number of 1.8T's
> with broken
> belts. We don't use sodium filled vasves for the replacements. The
> ones we
> get are about $8 each, as opposed to the dealer's ones of $61, our
> cost.
> BTW, every 1.8T I've seen go has bent nearly every valve. Check
> them very
> closely. The easiest way is to fill the combustion chambers with
> fluid, with
> the head upside-down. If there is even the slightest leak in each
> of them,
> you have a sealing problem. Also, check the lifters very closely
> for dents.
> Usually the hit valves have damaged lifters. If these are re-used,
> they may
> damage the camshaft in short order.
>
> I don't know the source of our valves, as I don't order them. But,
> I can
> find out, if you are interested.
>
> On a side note, say it with me, TB, tensioner, and water pump every
> 60K.
> Tell everyone you know with a 1.8T!!! I just finished doing the
> head rebuild
> on a 2002 Jetta, factory 105K interval. The car had 82K, the
> tensioner went
> bad. Think VW covered it........think again. $2500 later, the car
> is back on
> the road. If it was mine, I'd do it every 60K. It's a lot cheaper (and
> easier) than this.
>
> I'm copying the list for the reason of hoping this saves one 1.8T,
> maybe
> more.
>
> Tony Hoffman
>
> BTW, I don't believe the V8's have sodium filled valves. But,
> anyone out
> there know differently?
>
>
> ----- Original Message -----
> From: "Stafford, Kenneth A." <stafford at WPI.EDU>
> To: <v8 at audifans.com>
> Sent: Thursday, September 20, 2007 7:39 AM
> Subject: [V8] Sodium-filled Exhaust Valves
>
>
>> Slightly off-topic...I believe the V8's have sodium-filled exhaust
>> valves--do any of you know where I can get some (actually for my
>> wife's
>> TT) other than from the stealership? Online, I see TT valves from
>> Osvat,
>> TRW, and Intervalve. I've confirmed that Osvat doesn't make any
>> sodium-filled valves. Where do I go? (Btw, rather than the $6600
>> repair
>> estimate for the TB failure on my wife's 1.8 225Hp TT, I opted to
>> repair
>> it myself. It seems as though we encountered no damage other than
>> 2 bent
>> exhaust valves and 1 bent intake valve--should cost me less than $500
>> total.)
>>
>> TIA,
>>
>> Ken
>> 91 V8Q (x2)
>> 01 TT225
>
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