Date:         Sun, 6 Nov 2011 05:52:10 -0800
Reply-To:     mark drillock <mdrillock@COX.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         mark drillock <mdrillock@COX.NET>
Subject:      Re: Transmission Woes
Comments: To: craig cowan <phishman068@GMAIL.COM>
In-Reply-To:  <CAH3v19LjkzKq8=o=-6Wn3Bw-ik-b_w1PQxnTi3mn07gLQThL2g@mail.gmail.com>
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An input shaft pilot bearing failure can seem intermittent for this
reason. When the bearing is failing it can grab the shaft which causes
the input shaft of the tranny to spin with the flywheel even with the
pedal pushed to the floor. This makes it difficult to shift into gear.
When the tranny is cold the viscosity of the gear oil adds internal drag
to the shaft and the failing bearing must overcome this drag to spin the
shaft. So when the tranny is cold the bad bearing is less likely to grab
the shaft hard enough to prevent shifting. As the gear oil warms the
internal drag lessens and the bad bearing grabs and spins the shaft more
easily.

Mark

craig cowan wrote:
>.......................
> My concerns were with the pilot bearing, but if that's what's going.....
> why is it intermittent?
> If the clutch hydraulics, same question?
>
> -Craig
>