Geeesh...the mouse froze again.
To continue, I got a moderate, steady stream of oil coming from the remote filter mount. So, I had some flow. I then went to the end of the hoses where it re-enters the engine after flowing through the two oil coolers. Well, here there was no joy.
No oil coming out. I did refill the filter before I reinstalled it and cranked the engine for quite a while to no avail. Next, I unhooked a few of the other hose connections past the filter and still no flow when cranking. Finally, I checked all the way
back to the filter outlet and no oil would come out. I changed to a different filter and still no flow from out of the filter. So, I have some flow....not a lot into the filter buy none out.
I HATE the idea of dropping the pan (will be a real pain) to check the oil pump and pressure gage, but I am not quite sure as what else to check at this point. When I return tomorrow, I will remove the plugs to take some of the stress off the starter
and see if I get flow out of the filter. I am also concerned now that I have been cranking the system long enough that some important parts are not running
with a lot of needed oil, such as the PSRU
etc.
If I would have just happened to look at the OP gauge, I would have never known there was a problem as the engine "sounded" strong and smooth and continued to do so when I started it to test my pressure after discovering the problems.
Hopefully this will be a bit more directly
answered by the engine guru types on the list since it is not specific to Tracy's electronics.
Please, what else should I check, I am about at the end of my testing skill set. Also, what say ye as to what the problem "sounds" like????
Thanks, as always.
Chris Barber
Houston
From: Rotary motors in aircraft [flyrotary@lancaironline.net] on behalf of Chris Barber [cbarber@texasattorney.net]
Sent: Tuesday, September 28, 2010 9:59 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Oil Pressure Loss
Aggg. I need a new computer. The mouse froze and the message sent prematurly
.
Anyway, I rechecked the wires to the EM2
and at the sensor again and all checked fine. Again, I started the engine, but was shut down as soon as I still saw no pressure.
Next, I hooked up two separate mechanical pressure gages in three different locations in the oil system, started the engine three times very briefly. Each time the engin
started and seemed to run fine for the VERY short time I allowed it to run.
No pressure reading on two of the test points, and about 6psi
on the reading from the turbor
engine outlet to the turbo.
Ok, I unscrewed the oil filter, which is located remotely just as the oil comes out of the front (by the pully's
oposite
the prop) of the engine. I hooked up a remote start switch, climbed under the engine and cranked the engie
.....I
got a moderate, steady flow of oil
From: Rotary motors in aircraft [flyrotary@lancaironline.net] on behalf of Chris Barber [cbarber@texasattorney.net]
Sent: Tuesday, September 28, 2010 9:42 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Oil Pressure Loss
In the never ending tradition of two step forward and three steps back, I was working on my RPM drop out at 6000 rmp
(messed with seveal
resistors to no avail). As I was sitting on the ramp at idle for a few minutes, focusing on the RPM's
I glanced over at the Oil Pressure and noted it was flashing as an alert and was showing almost NO oil pressure (4 or 5 psi). I instantly shut down the engine.
The engine appeared to be running fine before I shut it down. I checked the wire to the back of the engine monitor and all was fine. I also checked the continutiy
of the wire to the sensor and it was good. I started the engine again and it started
fine and seem to run fine, however, the OP did not kick in so I shut it down again