| Author | Message | ||
| Buddy Tennison (Buddyten)
Registered Member Username: Buddyten Post Number: 102 Registered: 7-2005 Posted From: 24.233.243.30 Rating: N/A |
Ok folks....I have 80 Eagle 8V71. Over the past couple months, I would not shut down when I turned off the key. Had to put in gear and dead kill it. Read on some of the posts that the skinner valves likely not operating properly. Some suggested that the solenoid controlling the skinner valves sometimes have bad grounds. Today, I cleaned and reattached all the solenoid ground wires, as well as the hot wires. Shot some cleaner into the lines from the solenoids to the skinner valves. Tightened everything up. Started the bus, and was letting it run. When the "Low Air" light went off, I hit the High Idle switch to let it work out a bit. The high idle kicked in, and after about 3-5 seconds, the engine died, and now will not start at all. Almost ran the batteries down trying to restart, but it won't catch up. Sounds like it is not getting any fuel. What have I done wrong? I think I probably need to replace the two solenoids that control the skinners, and probably the skinners themselves. Are these parts that you can get at a local Truck shop, or do these have to come from some other source. Can you tell me what the parts are called, part numbers, etc? Any help you all can give would be much appreciated. Need to get the bus back on the road by next weekend (the 15th). Thanks for all your help. | ||
| Bill 340 (Bill_340)
Registered Member Username: Bill_340 Post Number: 179 Registered: 7-2006 Posted From: 75.204.170.46  Rating: N/A |
well our eagle with the same engine, did the same thing, we found that the little arm that hits the shaft on the solenoid kept missing its mark sometimes and we had to push it manually to shut down, someone at a rally somewhere bent the bracket slightly and it worked till we sold it 4 years later | ||
| Donald P H (Eagle19952)
Registered Member Username: Eagle19952 Post Number: 102 Registered: 11-2007 Posted From: 98.208.157.149 Rating: N/A |
what bill said try oiling/cleaning the plunger/slave on the little air cylinder, it is stuck. Figure it out on a cold engine. use a broom handle to "kill "your engine in the future. | ||
| Buswarrior (Buswarrior)
Registered Member Username: Buswarrior Post Number: 2224 Registered: 12-2000 Posted From: 174.91.142.236  Rating: N/A |
"shot some cleaner into the lines" And followed it with....? If you mess with them like that, they need lube. Look at the activating mechanisms, something hanging up or in a position that it shouldn't be, your problem is more than likely visible. happy coaching! buswarrior | ||
| George M. Todd (George_todd)
Registered Member Username: George_todd Post Number: 1312 Registered: 8-2006 Posted From: 76.94.211.60 Rating: N/A |
Buddy, The two Sinner valves work two air cylinders. One does the high idle, and the other does the shutdown. The shutdown cylinder is in the vee, and pushes on a lever attached to the governor. You should have been able to stop your engine by going to the back and moving this lever away from the plunger. Anyhow, the stop Sinner valve is known as "normally open," in other words, air flows thru it when there is no power on it, and pushes the shutdown plunger out. Turning off the key stops the power to the solenoid. It sounds like the plunger has been stuck since the engine wouldn't stop when the key was turned off, and now you have freed up the cylinder, and maybe caused an electrical problem that took power off of the shutdown Skinner valve. Follow the air line from the Skinner valve to the cylinder next to the throttle linkage, (the high idle cylinder is down on the side, and you don't see any exposed piston) and see if the plunger is pushing out on the stop lever. If it is, the governor is being held in the stop position, which is the reason for your no start. You can remove one screw and loosen the other, and move the cylinder out of the way of the lever to see if the lever moves back to the run position. G | ||
| Luvrbus (Luvrbus)
Registered Member Username: Luvrbus Post Number: 1348 Registered: 8-2006 Posted From: 184.12.167.98 Rating: N/A |
I will never understand why buses use that type shutdown when you can buy the all-in-one type from a DD for 80 bucks and don't have that problem to contend with JMW good luck | ||
| Tom Christman (Tchristman)
Registered Member Username: Tchristman Post Number: 348 Registered: 1-2006 Posted From: 66.218.33.156 Rating: N/A |
On my first truck with 8V-92TA I had an electric over air solenoid to shut off the engine. There was also a manual pull lever with cable to over ride this. Eventually the air solenoid went south, and I just used the pull cable for the duration. With your bus, you should NEVER have to pop the clutch to stall it (unless it over fuels and takes off on you). You should also learn how to manually start and stop the engine from the rear. Starting a very cold engine from the rear and working the stop lever should be learned. Good Luck, TomC | ||
| Jim Wilke (Jim Bob) (Pd41044039)
Registered Member Username: Pd41044039 Post Number: 748 Registered: 2-2001 Posted From: 184.0.13.120  Rating: N/A |
What is the all in one type & how does it work? |