[Vwdiesel] NA exhaust valves for a TD head?

[raymond greeley]

Is there a stamping on the valve that would tell me what type the valve is.

ray

>From: James Hansen <jhsg at sasktel.net>
>To: vwdiesel at vwfans.com
>Subject: RE: [Vwdiesel] NA exhaust valves for a TD head?
>Date: Tue, 05 Apr 2005 23:48:58 -0600
>
>Well, I'm thinking if you have sodium valves, they are good and should be
>reused.  If you don't, you don't reuse them...  Only reason for changing 
>out
>a real honest to goodness sodium filled valve was if it was screwed.  They
>have such a long life, that it has to be buggered before you change it, 
>like
>bent or eroded.  That was the reason for the sodium filling in the first
>place- to negate the effects of heat on them and conduct the bad heat away
>down the stem where it can be dissipated.   I'd bet the valves are fine if
>they are true sodium filled valves.  The guides are what wear not the
>valve... much.    That said, always replace ordinary exhaust valves, do not
>reuse. ever.
>-James
>
>-----Original Message-----
>From: vwdiesel-bounces at vwfans.com [mailto:vwdiesel-bounces at vwfans.com]On
>Behalf Of Shawn Wright
>Sent: Tuesday, April 05, 2005 7:14 PM
>To: vwdiesel at vwfans.com; diesel-Vanagon at yahoogroups.com
>Subject: [Vwdiesel] NA exhaust valves for a TD head?
>
>
>In speaking with Peter at Bowwow (the local VW parts place), I was told
>they have supplied standard NA valves for TD applications for years with
>no problems. These are about $12 vs $40 for the proper sodium filled TD
>exhaust valves.
>I'm curious if anyone has any thoughts on using standard valves for a TD
>application (hydraulic). I was thinking I could replace all the guides, 
>then
>measure the valves. If they are in spec, leave them alone. If one or more 
>is
>out of spec, I should probably replace all of them with NA valves, rather
>than have a mismatch. Or spend way more money can get the TD valves...
>
>Shawn Wright
>http://zuiko.sls.bc.ca/~swright
>'85 Jetta D
>'88 Westy 2.1L, soon to be 1.6TD 5 speed
>'82 Diesel Westy
>
>
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