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Jeff, I went back out and ran the
engine again. The fuel pumps are T-eed of after the gascolator and go to
the separate fuel systems, the Weber is on top of the engine, above the fuel
level in tank. I ran the engine on fuel injection and it was working fine
when it was cool. I shut off the primary injector switch and the engine
quit immediately like it had always done in the past, but when it go warm (190)
and started missing, it ran a lot better with the injector switch off and when I
turned the injectors back on it was missing terrible and this time I noticed
that the Manifold pressure creep up from 13# to 24# and the EGT on the #1 rotor
went down to the bottom of the scale. I tried the scene 3 times and the
results were the same each time with the primary or secondary injector
switches on. Like wise it is a big question to me, as to the change in
function in the injector switches.
Could it be that the computer is flooding the #2
rotor and the reason it doesn't quit when I turn the mixture to full lean at
2000 rpm. It does run a little better at higher rpm's (like 4000).
The injectors were reconditioned ones that I got
from Bruce T and I'm thinking that the #1 primary injector may not be working
when it gets hot. On the other hand, doesn't the secondary system take
over, or is that only at higher rpm's.
If it is a ground condition, it seems like it
wouldn't wait until the engine is hot to quit working, it would be happening at
any time. JohnD
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