Originally Posted by Transporter2112
Good thinking, but I believe my transmission is functioning correctly. I do believe it's the Allison 545 and have counted the shifts. It does indeed shift into 4th gear, no strange noises or slipping noticed. It pulls well until i reach 45 indicated on the speedometer, 40 GPS, then it really feels as if I've let off the throttle. It doesn't slowly loose power like a normal vehicle does when you max it out with a gradual decline of acceleration, it pulls until the governor kicks in. I used to drive over the road tractor trailers for Warner and the trucks were governed at 70 MPH. This feels exactly the same. So either: the school system installed some speed limiting governor that was not properly disconnected when I purchased the bus, or: they turned the mechanical engine governor down to some lower RPM setting and I'm not getting full revs. I've ordered a tach so hopefully it can shed some light.
Hello...been following your thread as I have the same issue...what tach did you order...thanks
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