| Author |
Message |
Brent Coursey
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, January 16, 2006 - 10:34 am: | |
We got our 84 Eagle 10 Conversion home yesterday from Nashville. We ran about 350 miles. I checked fluids this morning: the oil was barely off full, the transmission was overfull(it started out that way), and the power steering which y'all helped me with was still within the marks. The coach water temp ran between 195 and 210...mostly at 200. When I would hit a hill going up it would creep up, than come back down. A couple of questions:
1) I read in the archives that an overfull Allison transmission can make the engine run hot, true? Can you extract out extra fluid thru the dipstick or is there a better way?
2) My Wrico generator uses the engine radiator and the generator temp gauge showed 170 while the bus temp guage showed 200. Any way to figure out which gauge is correct?
Thanks! |
RJ Long (Rjlong)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, January 16, 2006 - 11:51 am: | |
Brent -
There should be a mechanical water temp gauge in the engine compartment. Compare it's reading with the one on the dash, and don't be surprised if there's a difference. But do it after a 10 mile or so drive, so that everything's warm - idling won't get it hot enough to give you a decent reading. DDA says 210 is max for these engines, so you'll want to make sure you don't exceed that, obviously. There may or may not be any provision on the electric gauge up front for adjustment, if not, just make a note of how far off it reads compared to the mechanical one, and work with that. Be sure the dash gauge is grounded properly - a bad ground can cause errant readings (not to mention other electrical glitches!!)
To drain some of the oil out of the Allison, you might be able to disconnect one of the cooler lines between the transmission and engine, but that would be messy. Check where the dipstick tube is attached to the transmission, you may also be able to disconnect the tube and drain some oil off into a pan that way.
Enjoy your new toy!!
RJ
PD4106-2784
Fresno CA |
Jim Stewart (H3jim)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, January 16, 2006 - 12:57 pm: | |
Not to be insulting, but you do have the engine running when you check the tranny oil, right? |
Brent Coursey
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, January 16, 2006 - 1:28 pm: | |
Jim,
Well, I checked the transmission fluid without the engine running...my dipstick has a cold full mark, so I figured it could be check that way. The fluid level was 3-4 inches up past the cold full mark. I'll check it again running after it is warm and compare. |
Eagle 10
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, January 16, 2006 - 1:46 pm: | |
Brent:
When I bought my 1984 Eagle 10 in Nashville, the charter company had about 25 Eagles they were running. They told me the same thing about the transmission being over filled and the engine would run hotter. The method they used to check the fluid was to unscrew the check plug on the base pan of the transmission up on the driver's side of it. Fill the fluid until it starts to weep out. I checked this out seven years ago with many sources and they all said don't trust the dip stick as you never know if it had been changed out. All I do is take it for a nice ride to warm the fluid, set the brakes, block the wheels, leave it running, unscrew the check plug, add if needed, make sure it is level. After more than 7 years, I may have added a quart total with over 75,000 miles driven. Good luck. Great bus ride! |
Jimh
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, January 16, 2006 - 5:39 pm: | |
Guys:
The Allison manual gives an exact measurement for the dipstick from the bottom of the pan. Good idea to check it. Also, when you change fluid ( yearly) Put in the amount given the "Da book" and check your dipstick markings. The transfluid is ALWAYS checked with the engine running and in neutral.JimH |
Sojourner (Jjimage)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, January 17, 2006 - 6:29 am: | |
Amen to JimH.
Always check trans oil level while idling in neutral & at or near operating temperature.
Reason is oil settling (not running) time varying the level due many passages to drain.
Otherwise your are gambling to assume it OK.
As per JimH quote…Look in manufacture’s manual.
Depend which model you have……but this HT 740 with given size pan.
Mechanic Tip; (Fluid Level Check Procedure)
http://www.allisontransmission.com/servlet/DownloadFile?Dir=publications/pubs&FileToGet=MT 1366EN.pdf
FWIW
Sojourn for Christ, Jerry |
Sojourner (Jjimage)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, January 17, 2006 - 6:37 am: | |
Might add this link for all 700 models Allison;
http://www.allisontransmission.com/publications/servicesupport_listings.jsp?ModelGrouping= ht
FWIW
Sojourn for Christ, Jerry |
J.C.B. (Eagle)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, January 17, 2006 - 9:03 am: | |
I have a 85 Eagle with a 6V92TA and a HT740 and the temp. would go to 200 so I dropped the rad. and rodded it and no change. Then I checked the temp. with a infrared temp. gun at the thermostat's and compared the reading with the dash gage and the gage was off 15* |