----[Please read http://ercoupers.com/disclaimer.htm before following any
advice in this forum.]----
Right on Jan, and also......Ever heard the term "Ramp Check"?

jan zanutto wrote:

> ----[Please read http://ercoupers.com/disclaimer.htm before following
any advice in this forum.]----
> Good advice about the pump-
>
> the other side of the coin is that when we take it upon ourselves to
> install non-aviation parts (especially engine parts) we are incurring a
> big liability for ourselves. If-  there's ever a wreck, and the accident
> investigation ties it into an unauthorized part you wont believe how
fast
> your insurance company will leave you holding the bag- they wont cover
> hull, or your liability for damaged property/human life.
>
> This is one of the FAAs biggest areas of concern- they call it SUPS, or
> Suspected Unapproved Parts and they arent the least bit forgiving or
> gracious when it comes to it. The A & P who installs an unapproved part
> will receive a suspension or revocation of his/her certificate.
>
> jan z
> fresno, ca
>
> On Thu, 31 Aug 2000 19:34:41 -0700 [EMAIL PROTECTED] writes:
> > ----[Please read http://ercoupers.com/disclaimer.htm before following
> > any advice in this forum.]----
> > Coupers,
> >
> > I wrote a letter to Coupe Capers years ago about this subject, but I
> > though
> > some folks might be interested in it who didn't get the newsletter
> > way back
> > then.
> >
> > Back around 1984, I called AC Delco when I was trying to find a pump
> > for my
> > Alon.  This was back when I think they had quit manufacturing the
> > pumps, and
> > the pumps were expensive (but not as expensive as they are now!) and
> > hard to
> > find.  I ended up talking to an AC Delco "fuel pump engineer" (yes,
> > that's
> > what he said his official title was).
> >
> > I asked him about using a different part number pump on my Alon.  He
> > told me
> > that the various fuel pumps for the small Continental engines are
> > NOT
> > interchangeable.  The reason is that the length and/or geometry of
> > the lever
> > arm is different on these pumps depending on diameter and profile of
> > the
> > crankshaft lobe that actuates the pump.  He said installing the
> > wrong part
> > number pump on an engine would either result in the pump being
> > overstroked,
> > which would stress the lever arm and result in a pump failure, or
> > understroke
> > the pump resulting in insufficient fuel flow.  He said that these
> > pumps are
> > designed to fit a specific engine, and to use only the correct pump.
> >  He
> > explained that the differences in these pumps are hard to detect,
> > even with
> > the pumps sitting next to each other, unless you know exactly what
> > to look
> > at.
> >
> > After talking with him for about a half hour, I was convinced that
> > the cost
> > of the proper pump was cheap compared to the cost of having a lever
> > arm break
> > off and fall into the engine.  I think these pumps used to be about
> > $38, and
> > when I was looking for a new one (back around 1984), they had jumped
> > to about
> > $86.  Now I think they are more than twice that amount, but at least
> > they are
> > still available.
> >
> > Good Flying,
> >
> > Wayne DelRossi
> > Alon N5618F
> > GYH  Greenville SC
> >
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