Date:         Wed, 22 Jun 2016 18:56:07 -0700
Reply-To:     Stuart MacMillan <stuartmacm@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Stuart MacMillan <stuartmacm@GMAIL.COM>
Subject:      Re: Problem with push rod tube seals?
Comments: To: Neil N <musomuso@gmail.com>
In-Reply-To:  <CAB2Rwfg9ZHu7bs7bCAD22CxDydwgPxwdn7ufFAqEc+DfaYuruw@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

For all the work that goes into a WBX rebuild, it's worth the $20 ea for new tubes.  Or, you can replace the failed ones later with $40 spring loaded tubes!

Stuart

-----Original Message-----
From: Neil N [mailto:musomuso@gmail.com] 
Sent: Wednesday, June 22, 2016 11:26 AM
To: Stuart MacMillan
Cc: vanagon@gerry.vanagon.com
Subject: Re: Problem with push rod tube seals?

Pushrod metal itself was my first thought though I was leaning toward expansion/contraction (heat cycling) causing the tube to expand and crush the seal then contract and cause an even bigger oil leak.

Can one successfully anneal the push rod metal at bellows or would that mean "entering a world of pain" ?

(apologies to "The Dude". [movie reference] )

Neil.

On 6/22/16, Stuart MacMillan <stuartmacm@gmail.com> wrote:

> .....  I'll bet the old pushrod tubes are the problem, not the seals.
> They may get less malleable as they  age, and after stretching them 
> for reuse they may not have the flexibility they once had, and that 
> leads to too much pressure on the seals.



--
Neil n

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