Hmmm a BD5J with zero hours FS

It's good that you found a problem that may get your engine running
again
but aren't you missing something? If your engine truly is "new", then
all
that injector clogging happened in just a brief ten hours. There must
be an
underlying systems problem that caused the clogging. Have you found
that
problem? If not it will just re-occur in the next ten hoursof running
time.

This is a valid point, don't you think? Is there something in the tanks, or
somewhere in the fuel system causing the injectors to be clogged so quickly?
Was there some problem previously existing in the engine?

Fixing a problem is good.

Fixing the cause of a problem is even better. g
--
Jim in NC

"Morgans" wrote in message
...

This is a valid point, don't you think? Is there something in the tanks,
or somewhere in the fuel system causing the injectors to be clogged so
quickly? Was there some problem previously existing in the engine?

Fixing a problem is good.

Fixing the cause of a problem is even better. g

The cause of the problem was essentially that no cleaning had ever been done
to the engine's injector plate, or to the fuel distribution components. The
engine has not been run for more than an hour or so since I bought it, and
something's bound to get in there. It gets cleaned and we move on.

The reason it is not a "valid point" is that the thought the engine clogs
after 10 hours is absurd.



--
Posted via a free Usenet account from http://www.teranews.com

On Wed, 27 Dec 2006 13:26:23 -0500, "Morgans"
wrote:

It's good that you found a problem that may get your engine running
again
but aren't you missing something? If your engine truly is "new", then
all
that injector clogging happened in just a brief ten hours. There must
be an
underlying systems problem that caused the clogging. Have you found
that
problem? If not it will just re-occur in the next ten hoursof running
time.

This is a valid point, don't you think? Is there something in the tanks, or
somewhere in the fuel system causing the injectors to be clogged so quickly?
Was there some problem previously existing in the engine?

With these plastic airplanes (like I'm building) clogged fuel filters
are common until all the crud is cleaned out of the tanks. After all,
working with fiberglass is mostly sand and fill, sand and fill, fill
and sand, fill and sand and if you get bored you can change that back
to sand and fill... At any rate that creates a *lot* of dust, not all
of which is easily blown out of tanks.

If the injectors are truely clogging it sounds like a fuel system
needs a thorough flush and the addition of a really good fuel filter.
That little jet engine isn't exactly over endowed with thrust so any
loss is substantial.


Fixing a problem is good.

Fixing the cause of a problem is even better. g

It certainly can save a lot of work in the long run and maybe even
hospital bills.
Roger Halstead (K8RI & ARRL life member)
(N833R, S# CD-2 Worlds oldest Debonair)
www.rogerhalstead.com

"This is a valid point, don't you think? Is there something in the tanks,
or
somewhere in the fuel system causing the injectors to be clogged so
quickly?
Was there some problem previously existing in the engine?

With these plastic airplanes (like I'm building) clogged fuel filters
are common until all the crud is cleaned out of the tanks. After all,
working with fiberglass is mostly sand and fill, sand and fill, fill
and sand, fill and sand and if you get bored you can change that back
to sand and fill... At any rate that creates a *lot* of dust, not all
of which is easily blown out of tanks.

If the injectors are truely clogging it sounds like a fuel system
needs a thorough flush and the addition of a really good fuel filter.
That little jet engine isn't exactly over endowed with thrust so any
loss is substantial.


Fixing a problem is good.

Fixing the cause of a problem is even better. g

It certainly can save a lot of work in the long run and maybe even
hospital bills.

You plainly state what I was hinting around at.

If it were me, I would be wanting to know what the substance plugging the
injector consisted of.

Fiberglass or slosh compound would be high on my list.
--
Jim in NC

"Morgans" wrote in message
...

"This is a valid point, don't you think? Is there something in the
tanks, or
somewhere in the fuel system causing the injectors to be clogged so
quickly?
Was there some problem previously existing in the engine?

With these plastic airplanes (like I'm building) clogged fuel filters
are common until all the crud is cleaned out of the tanks. After all,
working with fiberglass is mostly sand and fill, sand and fill, fill
and sand, fill and sand and if you get bored you can change that back
to sand and fill... At any rate that creates a *lot* of dust, not all
of which is easily blown out of tanks.

If the injectors are truely clogging it sounds like a fuel system
needs a thorough flush and the addition of a really good fuel filter.
That little jet engine isn't exactly over endowed with thrust so any
loss is substantial.


Fixing a problem is good.

Fixing the cause of a problem is even better. g

It certainly can save a lot of work in the long run and maybe even
hospital bills.

You plainly state what I was hinting around at.

If it were me, I would be wanting to know what the substance plugging the
injector consisted of.

Fiberglass or slosh compound would be high on my list.

Neither. If you had an inkling of knowledge about BD-5's you'd know the
wings are all metal, no fiberglass. Been that way for 30 years, get with the
program and get off the armchair. And if you had followed my notes, you'd
know I used a sealing product that does not dry while in contact with Jet-A.
The wings must be dry, then the compound is introduced, sloshed, and the MEK
is allowed to evaporate from the formula, leaving behind an extremely tough
Buna-N layer. The substance in the injector was extremely small, probably a
grain of sand or something, because fuel flow was not interrupted, but the
pattern was not optimal.



--
Posted via a free Usenet account from http://www.teranews.com

"Roger" wrote in message
...
On Wed, 27 Dec 2006 13:26:23 -0500, "Morgans"
wrote:

If the injectors are truely clogging it sounds like a fuel system
needs a thorough flush and the addition of a really good fuel filter.
That little jet engine isn't exactly over endowed with thrust so any
loss is substantial.

Already done, and the fuel system has five filters.



--
Posted via a free Usenet account from http://www.teranews.com