| Author | Message | ||
| David Anderson (168.215.176.229) Rating: N/A |
silver 6v92 turboed using Delo 40wt oil On a climb the oil temp gets up to 240. How hot is too hot? That seems pretty high to me. any advice? David | ||
| Peter Broadribb (Madbrit) (67.136.117.49)
Rating: N/A |
First thing to do is to check the gauge. Try installing a mechanical one near the engine. I was going to install one in a bedroom closet so the co-driver could go back and check it whilst underway. Or use a heat gun to zone in on the hotspot where the gauge is installed and compare readings. Then see if you even have anything to worry about. Peter. | ||
| Ed (4.131.39.159)
Rating: N/A |
The first of the questions how hot would depend on the lenght of operating time. As for the advice, Downshift. I don't know if you have a tach in the coach. I do know you have a houston bus but not if the engine is an 1800 or 2100 rpm. Regardless of the engine if your oil temp is going up the engine is working to hard. Its temp will go up before the engine temp. The engine should not be operated under about 1000-1100 rpm on a pull. Keep the rpm up. You might take a little longer up a hill but your engine will be a lot better off for it. Gear down keep the tach up. Your tranny will thank you also. Ed | ||
| Tom Caffrey (Pvcces) (65.74.65.65)
Rating: N/A |
David, I would think that a call to Southern Oregon Diesel would get you an answer as to how hot your oil can run safely. Try (541) 672-7400, weekdays. | ||
| Geoff (Geoff) (66.238.120.27)
Rating: N/A |
I've never used a temperature gauge for engine oil except on my air cooled Harley, and it normally ran at 180 degrees, but could heat up to 300 degrees. I would think on your 6V92 the oil temperature should run the same as the coolant temperature. What is your coolant temperature when the oil is 240 degrees? And if you can, use a laser temperature gun to verify the gauge reading. --Geoff '82 RTS CA | ||
| Jimmci9 (68.24.3.104) Rating: N/A |
check the wiring on the sensor, if its electric...loose wiring or bad grounds cause erratic readings... the sender should be located in the oil pan sump...then use an infrared heat thermometer to check/verify the high temp..you've got a voith auto, right??? what temp is it running???look closely at whatever oil cooler you're using... whether its a bundle, double/double or a heat exchanger type.... | ||
| TWO DOGS (63.185.97.241) Rating: N/A |
oil temps get high...we never know in our cars...it's one of those "I'd rather not know" things...kinda like when the nurse tells ya' not to flush after ya' finally get to use the 'mode...  | ||
| TWO DOGS (63.185.97.241) Rating: N/A |
like Ed said...keep those rpms UP....don't ever lug a dietroit...drive it like you're pissed off.. | ||
| bruce (24.242.125.53) Rating: N/A |
oil breaks down to its components at 300 degrees | ||
| guy bouchard (161.184.196.2) Rating: N/A |
A temperature range for engine oil in '92 of 260 to 290 is considered within range. That is why it is so important to use single grade oil in a Detroit. You have to remember that a Detroit does all the cooling of the piston head with the engine oil.The're not like the other primitive engines that let the pistons loaf for half the time to get some air cooling. Guy 4905 | ||
| David Anderson (168.215.176.180) Rating: N/A |
The water temperature reading in a hard climb goes up to about 190 to 195. At that point I turn on the mister or back off the throttle. The water temp at 70-75mph on a flat is about 180. The oil temp on a flat at 70-75 is about 195. At 60-65 it is about 185 consistantly. The temps are not erratic. You can set your clock by it depending on the hills. It will shift to 3rd at 50mph and about 1200rpms. I cannot make it downshift any earlier. I have a turbo gauge so I watch it closely when climbing. I back off the throttle until I get maximum psi. It does no good to press the throttle any deeper than the max psi on the gauge at any given speed. At least that is what I have concluded in the three years of driving the beast. Just for information, something that I've noticed is that if I keep the power setting at about 10-11psi on the turbo gauge the water temp will stay below 185. This will give me 62-65mph on a flat. I can get 18psi boost at 78mph at 1950rpm on a flat. I usually set the cruise at 70mph which is 13-14psi on the boost, 1700rpm +/-. This wouldn't work well on my last trip as it was 98 outside and I was pulling a Ford Ranger. I pretty much had to stay around 60-65mph to keep the water at 185. I've acclimated to using the turbo gauge as much as my speedometer for power settings. (I guess its the pilot in me) The Voith auto never gets above 180 unless in a long decent with heavy retarder use. It will climb to about 210 on decents off the mountain divide passes. The Voith tech manual bases all technical tests on a 190 degree operating temperature, so all is well there. It appears that 230 to 240 temporary temperatures in climbs are ok according to some of your posts, above. However, it would be nice to have an auxilliary oil cooler that allowed oil to pass through it when the temp climbed to 195. I wouldn't mount it near my radiator, though. It is removing as much heat as it can in heavy climbs.  | ||
| TWO DOGS (65.179.192.6) Rating: N/A |
I think I know where to get you an oil cooler,in Tulsa...do you want me to see how much ?? | ||
| David Anderson (168.215.176.195) Rating: N/A |
Hi Two Dogs, Sorry we didn't hook up when we were in the panhandle. My bus went through the storm that did all the damage in Amarillo on June 21. We were parked in Pampa that night. It got hailed on and lottttts of wind but no damage. Sure, get some details on the oil cooler. I may be interested. Post on the board how to position the cooler so I'll have an idea of the amount of work I'm in for. Thanks, David | ||
| TWO DOGS (63.185.65.208) Rating: N/A |
yeah...Amarillo GOT IT...one car lot had two million damage,all the windows knocked out of the north side of the hospital...the balls of hail looked like flying saucers,or, saturn...about the size of a baseball.. In the winter ...snow doesn't melt,it wears out... | ||
| Jim-Bob (152.163.252.199) Rating: N/A |
Hi David, Do you know what your rear axle ratio is? I'm curious regarding speeds & temps. | ||
| Jim-Bob (152.163.252.199) Rating: N/A |
Hi David, What is your axle ratio? I'm curious about the speeds & temps. | ||
| David Anderson (168.215.176.227) Rating: N/A |
I dug and dug and know I have that number somewhere. The only thing I found was 3.36 scribbled on some notes I made about my drop box. The model # of the differential is Rockwell A23121V-386 if that helps any. Jim Sheppard knows what we have if he happens to read these threads. He can chime in and give a valid answer. David | ||
| TWO DOGS (65.179.201.76) Rating: N/A |
3.70 ?????? | ||
| Jim Shepherd (Rv_Safetyman) (67.137.255.123)
Rating: N/A |
Eagle only offered two rear end ratios for the 10. They were 3.36 and 3.73. Everything I can find says that the 3.36 was a rare animal. I am pretty sure the Houston Metro Buses had 3.73 rear ends. My calculations and the tach seems to verify that. Jim Shepherd Evergreen, CO ’85 Eagle 10 http://rvsafetysystems.com Bus Project details: http://www.rvsafetysystems.com/busproject.htm | ||
| David Anderson (168.215.176.172) Rating: N/A |
Thanks Jim, I will write down 3.73 in my book. David | ||
| Johnny (68.0.241.248) Rating: N/A |
"oil breaks down to its components at 300 degrees" Unless you run synthetics. After pegging the gauge at 350+ degrees, the Mobil 1 5W-50 in my wife's car checked out fine when it was analysed. And yes, the car now has an oil cooler. | ||
| David Anderson (168.215.176.195) Rating: N/A |
I called Luke at US Coach and he talked to his DD rep. They said I'm ok up to 240 degrees for short bursts. So, it looks like all is well with the Eagle 10. Thanks, David | ||
| Jim-Bob (205.188.116.136) Rating: N/A |
Thanks David & Jim |