| Author |
Message |
toddsaint (12.218.69.202)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, March 25, 2002 - 11:01 pm: | |
4905 8v71 4 speed new rebuild (2k mi)
looses power & speed on any little incline
drops from 70-75 mph to 50-55mph and these are the rolling hills of NW FL!
has n65 injectors-
Air?
appreciate your thoughts
Todd |
RJ Long (Rjlong) (24.127.8.58)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, March 25, 2002 - 11:10 pm: | |
How did it do before the rebuild?
Only 2K miles? Still breaking in. . .
"Rack" set right?
Engine "A" timed w/ N65s?
Fuel filters clean, especially secondary?
Air filter clean?
How heavy is the coach? Weight has a big effect.
Buses don't climb hills like cars do. . .
HTH,
RJ
PD4106-2784
Fresno CA |
Buswarrior (Buswarrior) (64.229.215.21)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, March 26, 2002 - 6:15 pm: | |
Hello Todd.
Simple thing: Is it smoking out the exhaust when the power goes away? Smoke means some fuel and air related imbalance like a clogged air filter or fuel rack not set up.
If the exhaust burns clean, check to be sure that the throttle is actually going to the full fuel position. Both at the governor and the whole throttle linkage back to the pedal.
I had the similiar experience, turned out to be unrelated to the motor. A cross member that the throttle linkage was attached to was rotten, and flexed under full throttle pedal movement. Net effect was the engine seemed to run fine on the flat, and then bogged out when a rise in the road was encountered.
Might be one of those coincidences unrelated to the motor work. Darn those bad bus ghosts!
happy coaching,
buswarrior |
|