Date:         Fri, 2 May 2014 20:14:27 -0400
Reply-To:     Mike B <mbucchino@CHARTER.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Mike B <mbucchino@CHARTER.NET>
Subject:      2.1 exhaust spring washers
In-Reply-To:  <000601cf665f$f1596e50$d40c4af0$@salicos.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Volks,
   Does anyone have a picture or description of  how the 2.1 exhaust
system donut gaskets hardware as it was originally installed?   I looked
at the Bentley manual, and ETKA and found that the forward end of the
connector pipe (where it meets the Y cast elbow) is supposed to have
65mm long bolts, 5 spring washers and 1 thick flat washer and a
high-temp lock-nut.   The 5 spring washers are called diaphragm washers
, also known as Belleville washers, which are basically cupped steel
washers.   I need to know if the cups all nest together in a short stack
or alternate against each other in a long stack.   The lock-nut
obviously must have a specific torque and along with the spring washers,
will this maintain a snug fit that can flex by use of a steady clamping
force on the donuts and pipe flares.  The Bentley does not specify a
torque value, so I'm assuming standard torque values.
   I'm not interested in hearing how no-one ever does this and how yours
has been just fine without the spring washers.
   I'm looking for the correct information, so I can set mine up exactly
the way that the factory engineered it.
   I've experienced multiple joint failures due to them being assembled
for years without these spring washers.  Now that I know why it's not
lasting and have new parts, I want to do it right, as original.

Thanks for any assistance.
Mike B.