Chris;
Great; sounds like things are going well.
First of all, with all the talk about injector sizing,
I now have all my injectors matched in size per the recommended size of the
Mistral test pilot out of FL. They seem to be working swell.
However, as has been noted here, they are waaaaay larger than the conventional
wisdom found here at 62.7 lbs/hr / 646cc/min. Since from what I have
read, Mistral has done tons of R&D, what do ya'll feel is the purpose of
these large injectors?
Hard to know what their reasons were;
but I wouldn’t be concerned. I’m sure they use them on the turbo
version; and want run on just two. My injectors are 560 cc/min, so not that
much less. The only down side I can think of with the higher flow capability
is getting smooth running at idle; so if that’s not an issue…. . .
Second, after I have moved the throttle to WOT,
when I move it back to idle, the idle RPM is much higher than it was
before. I may have a smooth idle around 1700 to 1800 rpm, but when I go
WOT and then bring it back to idle, the RPM is now around 2200 or so. If
I "pump" the throttle a couple of times, it tends to settle
back down to the 1700 range....if I mess with the mixture, I can get
smooth idle around 1400 to 1500.
Sounds like maybe a problem with the
throttle linkage. Can you check and see that when you pull it back the
throttle plates are fully closed? Is there any adjustable idle-air bypass on
your system? And you might want to check your idle stop – it should idle
down to about 1000 so when you pull the power on final the prop will help you
slow down.
The last two standard oil filters I have installed
are leaking from the seal. I checked the mounting surface and do not
"see" any flaws, however, I am leaking quite a bit of expensive
synthetic oil (following the first six hours on dino oil) from this
location. I thought that perhaps I had tightened it by hand too much and
it warped the sealing gasket. However, it still leaks following a less
tight fit. I have never had a problem with this kind of filter
before. Please correct me if I am missing something. You lube the
gasket with oil when you install and only hand tighten it. Should not be
a problem. Any thoughts? I have had this with the last two
filters. The current one being a K&N...the previous an STP.
First thing to try is tighten it
further. I don’t know your filter placement, but you’re probably
seeing 80-90 psi pressure there. Get a filter wrench on it and give it maybe ˝
turn past hand tight. I won’t hurt the seal.
What’s next? Is that bird about
ready to fly?
Al G