Primer Solenoid Valve Flow Direction?

jsharkey · #1 11-04-2007, 01:09 PM

The Parker B2DX62 solenoid valve used for the Van's primer system has two ports stamped 1 and 2 respectively. I assume that one is the inlet and the other is the outlet. Can anyone confirm which is which?
Thanks in advance.
Jim Sharkey
RV6 O360-A1A FP Tip-up

The A/C Spruce catalogue has the same part and says Port #1 OUT and Port #2 IN - can anyone confirm?

N395V · #2 11-04-2007, 05:35 PM

@^^&*#^$^$

2 is in and 1 is out.

If you hook it up backwards your boost pump will blow right thru it and flood and kill the engine.

There is nothing that comes with the solenoid that tells you this. You are correct the only place where it says anything about it is the Spruce catalog.

I found this out on my first test flight when I turned the boost pump on prior to landing. The engine promptly flooded and that was my first forced landing in my new plane. Luckily I was over the top of the airport.

2 IS IN 1 IS out.

jsharkey · #3 11-04-2007, 05:45 PM

Quote:

Originally Posted by N395V

@^^&*#^$^$

2 is in and 1 is out.

If you hook it up backwards your boost pump will blow right thru it and flood and kill the engine.

There is nothing that comes with the solenoid that tells you this. You are correct the only place where it says anything about it is the Spruce catalog.

I found this out on my first test flight when I turned the boost pump on prior to landing. The engine promptly flooded and that was my first forced landing in my new plane. Luckily I was over the top of the airport.

2 IS IN 1 IS out.

THANK YOU!!!!!!

carguy614 · #4 11-05-2007, 04:29 AM

Thanks guys... I rechecked mine this evening, and found I had accidently plumbed mine right!!

Regards...Chris

lostpilot28 · #5 12-19-2007, 03:28 PM

Hey guys,
I've just installed my primer line and I have the B2DX62 Solenoid. I have a 1-foot piece of flexible line (material braided with no firesleeve) that will go from the gascolator to the solenoid.

What I need to know is, what kind of hose or tubing do you use from the solenoid to the brass T-fitting? I'm guessing that because the brass fitting is NPT that you don't need AN fittings. From the T-fitting to the 3 cylinders are regular NPT brass fittings.

So, what kind of hose or line could I use? Does it need to be fire-sleeved? Should I put firesleeve on the 1-foot section of braided line to the solenoid?

Any pictures of how you fellas set it up would be great, too! Thanks in advance.

jsharkey · #6 12-19-2007, 03:36 PM

I used copper tube that came with the Van's primer kit. It only feeds the front two cylinders and runs over the top.
Jim Sharkey

lostpilot28 · #7 12-19-2007, 04:07 PM

Ahh! Thanks Jim. Just curious though, if there's a way to do it with flexible lines. My guess is that it would get expensive compared to buying copper tubing.

LifeofReiley · #8 12-19-2007, 04:08 PM

Quote:

Originally Posted by N395V

@^^&*#^$^$

2 is in and 1 is out.

If you hook it up backwards your boost pump will blow right thru it and flood and kill the engine.

There is nothing that comes with the solenoid that tells you this. You are correct the only place where it says anything about it is the Spruce catalog.

I found this out on my first test flight when I turned the boost pump on prior to landing. The engine promptly flooded and that was my first forced landing in my new plane. Luckily I was over the top of the airport.

2 IS IN 1 IS out.

Help me out here... How does the boost pump work with the primer pump? These are two separate functions items. Are you stating the boost pump pressure somehow makes the primer solenoid bypass?

lostpilot28 · #9 12-19-2007, 04:30 PM

Quote:

Originally Posted by LifeofReiley

Help me out here... How does the boost pump work with the primer pump? These are two separate functions items. Are you stating the boost pump pressure somehow makes the primer solenoid bypass?

The primer is a solenoid, not a pump. When it's activated, it opens and allows fuel to flow through the primer lines. You have to have the electric pump on first, then hit the solenoid switch for a second or two (I don't know for how long, because I haven't used mine yet).

New problem, though...the primer lines that I installed were the silver (aluminum?) lines that came with my ECI engine kit. They do NOT use AN fittings, but rather NPT pipe threaded ends. So, I was about to buy some copper tubing to copy Jim's setup but I don't know how to connect copper tubing to an NPT fitting. You don't flare it like an AN fitting, do you?

I'm going to have one end (the solenoid end) using an AN fitting, then I'm going to have the other end connect to my NPT T-fitting. Anyone care to explain how to make the NPT fitting work?

mahlon_r · #10 12-19-2007, 04:34 PM

You need an AN-800-2 ball end and an AN-805-2 nut. Easily gotten from Spruce.
http://www.aircraftspruce.com/pdf/20...l/Cat08114.pdf
Good Luck and Merry Christmas,
Mahlon
?The opinions and information provided in this and all of my posts are hopefully helpful to you. Please use the information provided responsibly and at your own risk."