Originally Posted by ChiliChzPoopTart
How did you determine the speed governer vs rpm governer? Also where is the hp stamp?
the horsepower stamp is on the left side valve cover.. it will likely be covered with grime.. I took a paper towel moist and carefully wiped the grime off the label.. there are 3 ratings on the tag, and one will have a dot above it stamped..
to tell the difference between the rpm and speed governor.. get on the open road and run the bus up to full speed.. when you hit the speed governor, your rpms will drop down and speed up to maintain a pretty exact vehicle speed, almost like a cruise control does... you'll really notie it when you go down hill how your rpms wil drop off a lot.. its really easy to do thos with an AT545 since there's no lock up.
I surmise after looking over the bus longer that it was used for elementary school thus the little tires. it makes the door-step lower for little tykes to get on and off.. also makes sense as to the fact I have built in child-safety seats.. and why the interior is in such nice shape other than the driver seat (little kids arent brats and cut seats on busses like junior high).. its interesting that its 6 window and set up as 5 rows inside... pretty decent legroom on the seats.. in effect its interior is almost ready to run for what I want this bus for..
I do believe my T444E suffers from the #8 injector "Cackle".. at first youd think it has an intermittent rod knock, but only occurs at idle, and not all the time... 'tap...tap-tap-tap.........tap..' and is up high.. you hear it under the bus but when you get under the hood and listen up top its much louder .. and doesnt rap under power... supposedly its a nuisance only and is simply the #8 injector being slightly fuel starved along the rail because the #6 fires right before it.. so that injector "bottoms out" its plunger.. a "Long-Lead" injector was developed to fix this issue... I only post this because others reading this may have the same sound and wonder what it is..
to me the whole 7.3 sounds wierd anyway compared to the mechanical diesels im used to... all of my diesel experience has been with I-4 or I6 engines.. fiorst diesel V-8 so it hasnt yet registered in my brain as to how ot should sound.. but I just drove it 1050 miles, and i didnt appear to be fogging mosquitos and my oil level is still on full....
my dashboard (like most IHC') is flaky.. my gauges will freeze.. then I reach behind and press on the connector slightly and they come back to life... so I need to take the cluster out and clean up all those contacts on that crappy MyLar flexible connector.. its all good since several lights are out.. I can take it apart and re-lamp the whole thing. and figure out why my trans temp and AMP-meter are no good... perhaps the cluster was changed and those 2 gauges were in it and never hooked up... I had never heard of a trans temp gauge on a 545... but the bus drives totally like its a 545.. I havent crawled under yet to read the tag off of it.. its a tighter 545 than the one in the DEV... or I should stay the stall speed on the converter is a bit tighter.. or could be it just feels that way because this bus is considerably lighter than the DEV...
it drives quite well for a school bus... at times feels almost like driving an E-350 van...
time will tell but i think I got a pretty decent bus!..
Fan clutch will likely fix its temerature issue.. last night when it cooled down and I was along the florida coast with some light showers, the temp was solidly at about 180-185 so the rest of the cooling system is doing its job.. in my past when a cooling system was clogged internally.. it would want ot run warm in most all conditions... this one only at high speed on a hot day and I never hear the fan... same symptoms as DEV.. time to order a fan clutch... its an easy fix... I think I can fix it like I did DEV without tearing apart the whole front of the bus..