Engine Sync & "Main Jet" issues?

Mack · 12-13-2003, 05:44 AM

It was a cold and windy night, spent outside.

Trying my best to fix an engine sync problem, couldn't get N1 or N2 to sync? EPR was fine, and the auto throttles worked great.

Now this is what I call a "Main Jet."

Sorry guys, long night, and now I'm feeling bored.

Mack · 12-13-2003, 06:00 AM

PS. Sitting on top of one of these motors at idle, all is right with the world. I won't even touch on what it's like at high power!

tbirdsp · 12-13-2003, 11:29 AM

Hook a Twinmax up to the bleed air and adjust the fuel controls...

kakeyed · 12-17-2003, 06:04 AM

[QUOTE]Said Mack:
It was a cold and windy night, spent outside.

Trying my best to fix an engine sync problem, couldn't get N1 or N2 to sync? EPR was fine, and the auto throttles worked great.

If you didn't have the nose to the wind, N1 would be all over the place and you can sometimes hear the Fan ''cavitate'' (Stick-Actuators often forget about this and write up the N1's as erratic).

If you did have her into the wind, N1 can still jump around a bit if it's gusty out there.

N2 & engine temp are fairly steady in both cases.

Mack · 12-17-2003, 06:33 AM

Quote:

Said tbirdsp:
Hook a Twinmax up to the bleed air and adjust the fuel controls...

Damn it, we tried that, and my brand new twinmax ended up a 1/2 mile behind the aircraft, out on one of the taxiways!

12-13-2003, 05:44 AM	#1
Mack ^OP Gone, but never forgotten. RIP, Mack... Joined: Sep 2002 Location: Austin, Texas USA Native Oregonian Oddometer: 3,797	Engine Sync & "Main Jet" issues? It was a cold and windy night, spent outside. Trying my best to fix an engine sync problem, couldn't get N1 or N2 to sync? EPR was fine, and the auto throttles worked great. Now this is what I call a "Main Jet." Sorry guys, long night, and now I'm feeling bored. Attached Images

12-13-2003, 11:29 AM	#3
tbirdsp REMF Joined: Mar 2002 Location: Nebraska Oddometer: 8,546	Hook a Twinmax up to the bleed air and adjust the fuel controls... __________________ Mike S. '09 Bonneville Black AMA MSTA STOC http://autos.groups.yahoo.com/group/...orcycleriders/

12-17-2003, 06:04 AM	#4
kakeyed Hangar Ape Joined: Nov 2002 Location: Canada of America.North of Mexico & U.S of America Oddometer: 357	Re: Engine Sync & "Main Jet" issues? [QUOTE]Said Mack: It was a cold and windy night, spent outside. Trying my best to fix an engine sync problem, couldn't get N1 or N2 to sync? EPR was fine, and the auto throttles worked great. If you didn't have the nose to the wind, N1 would be all over the place and you can sometimes hear the Fan ''cavitate'' (Stick-Actuators often forget about this and write up the N1's as erratic). If you did have her into the wind, N1 can still jump around a bit if it's gusty out there. N2 & engine temp are fairly steady in both cases. __________________ When the power of love overcomes the love of power, the world will know peace. - Jimi Hendrix Definition - Third World Aid : Aid paid by the poor people of rich countries to help the rich people of poor counties. (Robert Burron) kakeyed screwed with this post 12-17-2003 at 06:42 AM

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12-13-2003, 06:00 AM	#2
Mack ^OP Gone, but never forgotten. RIP, Mack... Joined: Sep 2002 Location: Austin, Texas USA Native Oregonian Oddometer: 3,797	PS. Sitting on top of one of these motors at idle, all is right with the world. I won't even touch on what it's like at high power!