Ed,
I was thinking of
trying that. I couldn’t figure out which bins are not correct. For
example, in my case, the bins go from 43-44 to 47-48 when it jumps. So I
didn’t know if I should adjust the intervening bins (the ones it skips) or one
or the other side of the jump.
It seems that you
adjusted the receiving bins??
Bill
From:
Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Ed Anderson
Sent: Saturday, November 06, 2010 12:52
PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Adjust BELOW Observe
ABOVE
Bill, if you don't like the idea of
using Mode 6 because it may cause an adjustment of all bins above staging - here
is an alternative suggestion based on the way I coped with the
situation.
As I mentioned my engine would also
bog due to leaning during the staging process - being too lazy to read the
manual and spot Mode 6 as a possible solution, I used the "brute force"
method. I observed that when my engine staged my bin pointer would jump
from the 30 some region to around 60. It was immediately after I observed
the manifold pointer to make that jump - that the air/fuel ratio went lean
and the engine bogged.
So from the lean indication I was
getting , I presume my engine was (for whatever reason) not getting adequate
fuel in the bins around 60. So I started increasing the MAP values in bins
60-65 higher (enrichen) in incremental steps. I found that each
adjustment richer in those bins caused the bog to become less severe giving me a
comfortable feeling I was headed in the correct direction. Eventually the
bog disappeared and my bin values above 65 were not affected because I did
nothing to change those.
You might want to try that method -
but I would give Mode 6 another try by adjusting below staging and checking
results above staging.