|
The list has been a little quiet lately, so here
goes. I'm the guy who couldn't get his Renesis going. Turns out a
capacitor was missing for the EC-2. Then it would only start on a rare
occation. Turns out it needed a 1000 ohm resistor across the CAS line as
noise was changing the timing. Now, Stageing is difficult. Auto tune
isn't really working and I have resolved that I will do it manually. It
kind of works, but takes a long time and it's easier to just do it
manually. My suspicion is that the manifold pressure is not holding steady
enough, but now I am not so sure. I even added 2 ports near the throttle
body, but it is still erratic. Even teed them together with the back
ports. Now back to staging.
I get up to 19 inches, the staging * turns off
and the engine start bucking. Tryed mode 6, setting for larger injectors
(I am running stock renesis 295 primaries and 610 secondaries) Still
bucks. Tried mode 6 turning down flow rate. At about 20 inches I was
able to get it to even out, but it still bucks at 19, 19.5 and it bucks so bad
that I can't get it to 21. I assume it is flooding as I was able to get it
to run at 20 inches, but can't get it to change at any other setting. The
EM-2 is erratic. The grafical mixture moniter, works and displays most of
the time at lower manifold settings, but the higher the setting, the less it
displays. At 19 inches, it only displays about 5% of the time. Kind
of hard to set things if I have no feedback. Even stuck in a new
O2 sensor to no avail. I can't run it long at these power
levels, as I quickly get to 210 degrees. My suspicion is there is a root cause
of all this EM-2 erratic displaey stuff. My very uneducated guess is that
electical noise is causing all these problems. Your thoughts??
Solutions?
To add more problems, at high temps, I heard a
squeel, then it stopped. Then it happened again. I didn't know what
it was, so shut down. Couldn't get it restarted. Pumps sounded funny
and no fuel pressure. Seems pumps over heated and cavitated as 5 minuets
later, they started working. They are shielded and with a cool tube
blowing on them. Apparently not enough. Your suggestions are very
appreciated. Tracy??? Oh, yeah. If I disconnect the secondary
injectors, it won't buck.
Don Walker
Frustrated RV-8 renesis builder
Now I'm e-mailing the Dynon list to find out why it
won't display GPS data
|