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Bill,
I have no idea why it crapped out. It was working fine the day before. I have finger strainers in the tanks and an inline filter (not sure of the mesh size offhand) before the pumps. This filter use to catch a lot of building debris and dust but has been clean of late. I have a big ol canister filter after the pumps and before the injectors.
I have power at the pump but even though the new filter came in today, I will likely swap the auxiliary pumps power to the primary just to verify the power test.
I have heard of problems of running the pumps dry and avoid it, however, I have done do a couple of time unwittingly for a number of seconds. Perhaps the damage was done and it took a while to manifest itself.
Chris
Sent from my iPhone 4
On Aug 12, 2012, at 3:18 PM, "Bill Bradburry" <bbradburry@bellsouth.net> wrote:
> Chris,
>
> Why did your pump crap out? Is there something caught in it? Did you run
> it dry? They are supposed to be good for about 5 minutes running dry before
> they crap.
>
> BTW
> The bigger pump (391) is more than you normally would need, but if you lost
> your alternator and were running on battery, the larger pump will maintain
> the fuel pressure for a longer time. (as your battery runs down.)
>
> Everything is a trade off. Tracy may get a pump to you faster, the CA place
> is about $20 cheaper. They claim 2-3 day shipping...free.
>
> Bill
>
> -----Original Message-----
> From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
> Behalf Of Chris Barber
> Sent: Sunday, August 12, 2012 1:10 PM
> To: Rotary motors in aircraft
> Subject: [FlyRotary] Fuel Pumps
>
> What is the part number of the newer fuel pump Tracy sells, the ones that
> has screw on fitting.
> My primary stopped working yesterday as I was showing the plane to a guy who
> just bought a Velocity SE retract sans engine and avionics. He is
> considering a rotary
>
> The auxiliary pumps is still hanging in there. The primary is getting power
> but is silent. I would like to see if I can pick one up locally as I am
> grounded until I get one.
>
> I searched the archives but they are less than search friendly. I found the
> part number of the push on and clamp version (heck, I may have a pair of
> those that I removed)
> but I prefer the screw on that use the AN adapter for what i hope will be a
> pretty basic swap
>
> Thanks
>
> Chris
>
> Sent from my iPhone 4
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