Understanding fuel servo maintenance

On 19 Nov 2006 08:11:59 -0800, "Robert M. Gary"
wrote:


Viperdoc wrote:
I've had two fuel servos repaired on two different engines- My impression is
that the parts are adjusted to insure adequate fuel flow, which is the
desired end result. I can not imagine how a spring would get stiffer with
time- perhaps the diaphragm became more compliant. Why not ask your mechanic
or the fuel shop?

Mechanic doesn't understand fuel servos (in fact, I've yet to ever find
an A&P who understands them from other than a theory point (since
they're aren't allowed to work on them anyway)). I got an anonymous
call from the fuel shop, I don't actually know who worked on it.
My real question is "is replacing the spring considered a repair issue
or an adjustment issue"?

-Robert

Not sure what you are looking for here, honestly. If you cannot
discuss this with the person/facility that did the repair, contact
another facility.

http://www.gnaircraft.com/access.htm

Just one company that has been working on them for a long time. Just
be sure you have a clearly defined question that you want an answer
to. I.E. if you know specifically what part was replaced, your
specific servo p/n and your symptoms prior to repair.

http://www.precisionairmotive.com/

Dig into this site for the list of product support & warrany repair
centers-I can't post a "link" to that page, but G & N is on the list.

I "understand" Bendix/RSA servos just fine, but have no idea what you
are asking, I've never repaired one. Maybe you need to talk to someone
who repairs them every day.

TC