| Author | Message | ||
| Matthew J Rutkowski (Matt_rutkowski)
Registered Member Username: Matt_rutkowski Post Number: 26 Registered: 1-2010 Posted From: 98.235.157.220 Rating: N/A |
Hi everone I just picked the 6 up at the shop after having it inspected and the tranny fluid was very low I added around 2 gal and it came up to the proper level. So I started looking for leaks and couldn't until it was cold then found a small leak around the filter canister by small i mean around a half a qt until it warmed up a little. so i dug a little deeper and ended up finding around 5 gal of tranny fluid in the air system. Is there any way that tranny fluid could pass thru? Let me also tell you that I had a leaking hydrulic pump that runs the main fan hooked to aux drive on engine this summer that was dumping lots of tranny fluid into the oil. could the fluid be from the previous problem in other words could it have passed from aux drive to air pump somehow or is it passing from tranny to air system now any help would be greatly appreciated. Thanks Matt | ||
| George M. Todd (George_todd)
Registered Member Username: George_todd Post Number: 1157 Registered: 8-2006 Posted From: 99.68.214.35 Rating: N/A |
Hello Matt, If I didn't know you better, I would think you were smoking something funny! 5 gallons of liquid will fill up most of the air system on that bus, period. As you say, the hydraulic pump can leak its oil into the engine, the steering pump can also. A worn compressor will pump whatever lubricates it, or water into the air system. So, I guess it is possible for the compressor to have pumped mostly trans fluid by its worn rings into the air system? The original compressor air intake was thru the engine air cleaner, but I didn't pay any attention to where yours is... What are you going to do with two? Regards, George | ||
| Matthew J Rutkowski (Matt_rutkowski)
Registered Member Username: Matt_rutkowski Post Number: 31 Registered: 1-2010 Posted From: 70.91.44.214 Rating: N/A |
Hi George, Great to hear from you you know as well as I DO THAT 2 IS ALWAYS BETTER THAN ONE ! Where would you start looking for the problem? I have allison transmissions telling me that there is a control box attached to the tranny that has air going to it for the bennett shifter I thought all that was electric?? There are air lines running to the tranny for what I dont know? You would think that air pressure would be much higher than the fluid pressure while running so it wouldnt be leaking then right? I would think you would be getting air into the tranny fluid ? But how about when its building air pressure ? Any thoughts are much appericated Thanks Matt | ||
| Buswarrior (Buswarrior)
Registered Member Username: Buswarrior Post Number: 1951 Registered: 12-2000 Posted From: 174.91.141.196  Rating: N/A |
Where exactly in the air system did you find this mysterious oil? happy coaching! buswarrior | ||
| Matthew J Rutkowski (Matt_rutkowski)
Registered Member Username: Matt_rutkowski Post Number: 32 Registered: 1-2010 Posted From: 70.91.44.214 Rating: N/A |
drained it out of the main tanks maybe its coolant im using extended life a/f thats red?would a leaking tranny cooler allow cooland into air system?? (Message edited by matt rutkowski on December 11, 2010) | ||
| Bruce Henderson (Oonrahnjay)
Registered Member Username: Oonrahnjay Post Number: 644 Registered: 8-2004 Posted From: 68.84.6.83  Rating: N/A |
I'm gonna guess coolant/anti-freeze from the compressor, into the air system. But where the trans fluid is going, I'd have no clue. | ||
| Luvrbus (Luvrbus)
Registered Member Username: Luvrbus Post Number: 979 Registered: 8-2006 Posted From: 24.251.187.142 Rating: N/A |
Not all the Bennett are electric over air some work Air/Hyd/electric with the transmission fluid and air,a bad transmission cooler leaks antifreeze into the transmission good luck (Message edited by luvrbus on December 11, 2010) | ||
| George M. Todd (George_todd)
Registered Member Username: George_todd Post Number: 1161 Registered: 8-2006 Posted From: 99.68.214.35 Rating: N/A |
Matt, I'm a lot happier with the red fluid being coolant. Your trans cooler is oil-to-air, as in outside air, so no cross-contamination there. Many engines are equipped with a dual oil-to-water cooler in the crankcase. A leak will let either engine oil or trans fluid into the water while running, or water into the oils with the engine off. The Bennett shifters move a shaft on the outside of the trans, so no contamination possible there. G |