Message

Thanks Ed and Rusty. Now comes the dreaded work of tracking down my = wiring error. I had earlier suspected a problem because when ever there = was power to the main buss the light on the EC2 would come on, indicating = there was power to the EC2 coming through the injectors. = Tracy said this was = normal, but maybe he was thinking that the engine was running. I am sure = that the injectors are open because the system will not hold pressure unless I = remove the fuses to the injectors. But remove the fuses on the hot side = of the injectors and the light on the EC2 goes out and the system holds = pressure. This happens with either the primary or the secondary = injectors.

I am also having trouble picturing = where I could have gone wrong in the wiring. It seems unlikely to me that = I could have grounded all 4 of the injector leads. Your idea about testing = with the main connector unplugged is a good place to start. But = assuming that checks out OK (no ground with the connector unplugged), I really would = have no idea what to do next. I can’t believe that I would put all 4 injector leads in the wrong hole. BTW, I did not install an = injector disable switch.

David Leonard

The Rotary = Roster:

http://memb= ers.aol.com/_ht_a/rotaryroster/index.html

-----Original Message-----
From: Rotary motors in = aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Russell = Duffy
Sent: Saturday, February = 28, 2004 6:31 AM
To: Rotary motors in = aircraft
Subject: [FlyRotary] Re: = 13B - No start problem

With the injectors connected to the main buss, when ever there is power to the = injectors they are OPEN!!! This occurs even when the EC2 does not have = power. As I was trying to adjust my fuel pressure and check for leaks (there = were only 4 ;-) I had about 10 min of pump running time with the injectors open = before I discovered the issue. Now I'm sure I have quite a puddle of fluid = inside the intake and rotor chambers.

Hi David,

I agree with Ed, and everyone else = who said the injectors should not be open just because they have power on them. Are you sure they were open, or did you measure 12V on them = and assume they were open?

Try this- turn the power back on to = the injectors, and measure from each connection on the injector to ground = with a voltmeter. As Ed indicated, you should see 12V on both connections = to show that the injector is off. If you see 12V on one, and ground = on the other, unplug the main EC-2 connector and check again. If you = still have ground on one side, you have inadvertently grounded the injectors in = your wiring somewhere, which will cause an extremely high idle speed = :-)

Good luck.

Rusty (I want to make noise = again)