SimonK
Registered User
Nome
Hi Guys
Tried searching on this topic, didn't come up with anything.
After I got through the annual from Hell in May (my first one, and the 14's first "real" one since the previous owner bought it in '86) I had a nice shiny upgraded 160 hp with 500-some hours smoh. I was burning about 8.2 gph during break-in and not much changed after the 50 hours, still burning right there at 8.2 - 8.3. At the advice of my shop I was not leaning to keep the engine temp down, and after the initial 25 hours I would cruise at 2400 rpm.
So here's the problem: After about 60 hours or so the fuel consumption jumped to 9.4 gph. I have tried to think of any changes, but haven't come up with any. Same RPM, same fuel, same outside temperature (approximately), same mixture (full rich),... I also checked it on different tanks to rule out a leaky tank.
I called the shop and was told that 9.4 was still within the specified fuel burn for a 160, but:
1) That seems high to me (might as well run a 180 horse);
2) Why the sudden increase of 1.2 gph?
I know guys who run a 160 burning in the mid 7- range.
Does this sound like a carb problem? Any other thoughts?
Help! Thanks!
Simon
Tried searching on this topic, didn't come up with anything.
After I got through the annual from Hell in May (my first one, and the 14's first "real" one since the previous owner bought it in '86) I had a nice shiny upgraded 160 hp with 500-some hours smoh. I was burning about 8.2 gph during break-in and not much changed after the 50 hours, still burning right there at 8.2 - 8.3. At the advice of my shop I was not leaning to keep the engine temp down, and after the initial 25 hours I would cruise at 2400 rpm.
So here's the problem: After about 60 hours or so the fuel consumption jumped to 9.4 gph. I have tried to think of any changes, but haven't come up with any. Same RPM, same fuel, same outside temperature (approximately), same mixture (full rich),... I also checked it on different tanks to rule out a leaky tank.
I called the shop and was told that 9.4 was still within the specified fuel burn for a 160, but:
1) That seems high to me (might as well run a 180 horse);
2) Why the sudden increase of 1.2 gph?
I know guys who run a 160 burning in the mid 7- range.
Does this sound like a carb problem? Any other thoughts?
Help! Thanks!
Simon