Hi Jim, The collapsible variety (telescoping) have two internal o-rings and a spring to provide tension, those were the o-rings I was wondering about. The nice thing about them is that they can be installed without pulling a head & are easily removed. I have new seals for the ends that came in my Reinz kit. Thanks for the tip on rejuvenating the old ones, I will be re-using some of them. Cheers, Tom On Sun, Sep 9, 2012 at 7:21 PM, Jim Felder <jim.felder@gmail.com> wrote: > Back in the day, the accepted practice for rejuvenating pushrod tubes on an > aircooled vw was to roll it on a table with a butter knife pressed into > each accordion groove, giving the tube back its length and therefore > pressure on the o-rings. > > I would at least replace the o-rings, cheap as they are and as much work as > it is to pull them. > > Jim > > |
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