S4 / RS4 (B5 Platform) Discussion Discussion forum for the B5 Audi S4 & RS4 produced from 1998-2002

Does anyone have the length of the stock exhaust valve?

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Old 11-08-2008, 01:07 PM
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Does anyone have the length of the stock exhaust valve?
Old 11-08-2008, 01:50 PM
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Not offhand, but if you email me I can measure one next time I'm down at the shop.
Old 11-08-2008, 02:39 PM
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Default Thanks Dave, I'm trying to figure out if these TRW valves I have are 2.8 or 2.7 sodium filled.

Caliper read these as 103.9 mm
Old 11-08-2008, 02:43 PM
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That won't help then. 2.7 and 2.8 valves have the same dimensions.
Old 11-08-2008, 02:46 PM
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Damn. I need to track down a TRW supplier and see what the deal is.
Old 11-08-2008, 03:42 PM
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YGM =)
Old 11-08-2008, 04:13 PM
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Thanks, right back at ya. The top of the valve reads "TRW T331107 TB"
Old 11-10-2008, 01:47 PM
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Default Should be 29.9mm head dia x 5.94 stem dia x 103.90mm length

But just in case, I'd measure to confirm. ;-)
Old 11-10-2008, 02:23 PM
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Figured it out, all good :-)
Old 11-10-2008, 05:01 PM
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Glad to hear it =)
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