Gus Cabre wrote:
I have a sticky main strut in my Pa-28-151. My engineer has suggested
changing the o-rings and valves of both struts. I was curious about the
whole structure and have looked everywhere in the internet with no luck Any
suggestions where I could find them?

Gus


As others have said, these things sticking is fairly normal. You
generally don't rebuild them until they start to leak. Since they
already leak somewhat, you just wait until the amount becomes a bit
messy and/or servicing them with air (or nitrogen as some prefer) gets
to be a chore.

I was surprised to find they stuck about the same after rebuilding all
of them as they did before.

If one is really sticking way more than the other you might be tempted
to change them both. But their "stickiness" will vary quite a bit from
strut to strut depending on the temperature and how much bouncing around
the bird gets when parked on the ramp for weeks at a time.

You may want to invest in a service manual and parts manual. Both are
now available on CD-ROM. It helps to have these to review before (or
after) you discuss matters with you mechanic. Just remember that the
mechanic has the benefit of actually DOING these operations, often many
times. They can tell you when the chapter and verse in the book ain't
quite how it REALLY happens.

Good Luck,
Mike