Hmmmm. I guess that's a possiblity. The aux pump makes plenty of noise when it's on.
Wonder if it's really pumping... On the other hand, suppose only the engine pump is
working. Why doesn't it eventually start the first time? Why does it start
*instantly* on the second go?

Best regards,

Steve Robertson
N4732J 1967 Beechcraft A23-24 Musketeer Super III

Ben Jackson wrote:

In article ,
Steve Robertson wrote:
For me, mine has an odd cold starting gremlin. (Lycoming IO-360) It will rarely
start the first time, no matter how long I run the starter or how long I
prime it
with the aux pump. However, it will start on the 2nd blade every time the second
time I run the starter. Weird.

You sure the aux pump is working? Could be you're priming by cranking
the engine pump which gets you the start on the second crank.

--
Ben Jackson

http://www.ben.com/