re: S4/S6 bypass valve (and '91, too)

[Phil Rose <pjrose@servtech.com>]

>Date: Sun, 17 May 1998 23:43:46 -0400
>From: Steve Mills <smills@lineage.com>
>Subject: S4/S6 bypass valve
>
>	I just R&R'd the bypass valve on my S4 (with the spate of recently
>reported bad ones, it was worth looking) and, in classic Audi fashion, I
>have good news and bad news.
>
>	Good news: Valve's working fine- operates, holds vaccuum, etc.
>
>	Bad news:  Where the vacuum hose attaches to the bypass valve is
>recessed
>into the body of the valve to the point that I can't get a normal
>screw-type clamp in to resecure the hose, and, even if I can get it in
>there, I can't tighten it. The original clamp was of the crimp in place
>variety (of course, I cut mine off before realizing that it wasn't going to
>be easy to replace)
>
>	Any BTDT's? Should I go ahead and get a replacement stock fitting and
>crimp it in place, or are there other viable (and reuseable) alternatives?
>
>	TIA-
>
>	Steve

Same situation with the '91 200q bypass valve. I have two suggestions:

(1) Relax, as I am doing, and just keep an eye on it. It's easy to peek at
it whenever the hood's open (at least it is on the '91) and if it's fairly
snug to begin with, may not need to be clamped. Or, when I get a chance
I'll get around to:

(2) Twist a couple of turns of 14 ga copper wire around the end of the hose
(with almost NO squeezing of the rubber) _before_ sliding it (hose) onto
the valve fitting. If you're careful not to overtighten the wire, the hose
still can be pushed onto the fitting with a little additional effort
(lubricate with water?) and will resist popping off.
HTH

Phil

Phil Rose		Rochester, NY
'89 100
'91 200q		pjrose@servtech.com