| Author |
Message |
Stephen Fessenden (Sffess)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, July 13, 2005 - 6:14 pm: | |
I was changing an alternator and the alternator belts yesterday and asked my wife to bump the starter just a touch without starting the engine to get one of the belts to pop onto the pulley. (It cannot be done by hand on my second alternator due to poor design.) The engine started on about an eighth of a revolution and would not shut down for about 2 minutes. My air pressure had bled down from sitting and I was aware this might happen and had cleared everything out of the way, but I thought the subject was worth mentioning for any Newbies who did not realize that the engine needs to build up air pressure before it can stop. Don't reach for the emergency shut off, just wait. And never touch the starter switch unless you are prepared for the engine to start and run a few minutes. |
Buswarrior (Buswarrior)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, July 13, 2005 - 6:27 pm: | |
Hello Stephen.
Thanks for sharing an embarressing moment so the rest of us may learn.
Glad all your fingers and toes are intact!
happy coaching!
buswarrior |
Marc Bourget
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, July 13, 2005 - 7:29 pm: | |
I'd agree with inconvenient, but Stephen knew prior that it might happen. As a result, was it really embarassing? |
Brian Brown (Blue_velvet)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, July 13, 2005 - 7:42 pm: | |
Good advice, Stephen.
I dunno about those with newer DDEC engines, but on older DD mills like mine, you can also shut the rack off manually. I had to do this on my bus when the shut-off cylinder developed a big air leak right after I bought it. On my v-drive, the governor's right there at the back... on a t-drive, it might be a little harder to get to.
BB |
David Hartley (Drdave)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, July 13, 2005 - 9:12 pm: | |
wood block and vise grips to lock off the fuel control prior to working around engine with the master switch on.
That is also the reason for rear engine controls in the compartment. |
Chuck Lott (Chuckmc8)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, July 13, 2005 - 9:13 pm: | |
On MCI, If you'se press that fuel shut off lever with ya left thumb ( which seems (or seemed, in my case)like the natural choice, standing there)
As the fuel is shut off and the engine dies, the oil pressure drops and causes the auto fuel shutoff system to come into play (rather rapidly) and the little air cylinder who's job you've decided to do yourself, takes its swift revenge and removes a section of your thumb........I knows this to be a fact, just one of "many" bus scars
When you know where the cylinder hits, you can do it with no problem, but that learning curve is most unplesant for the DIY |
David Hartley (Drdave)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, July 13, 2005 - 9:22 pm: | |
Fat Thumbs...Duh...
That's why you twist the lever from the side and not with your thumb on the flat spot silly!
On MCI's you also have to watch out for that nasty fan belt! Long sleeve shirts/jackets will really get a chunk of skin removed. And quickly too! |
Jtng
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, July 13, 2005 - 9:40 pm: | |
Uhm. Don't ask me how I know -that-. |
Chuck Newman (Chuck_newman)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, July 13, 2005 - 11:05 pm: | |
For those with DDEC engines, you can start it then immediately stop it with the turn of the ignition switch. The ECM shuts off the injectors and fuel supply. At least on the 4 cycle engines. Not absolutely sure on 2 cycle DDEC applications.
Chuck Newman
Oroville, CA |
pipes
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, July 13, 2005 - 11:25 pm: | |
My solution to be able to shut down the 8v71 in my 05 Eagle...NO AIR
The shut down lever on the govenor had a 1/4 inch hole in the end of it. I bent a piece of 1/4 inch steel rod about 1 inch to a 90 degree angle and brought it right under the electric panel, made a bracket with a bronze bushing and fastend that to the underside of the panel,threaded that end and screwed on a RED knob to push lever..
This works good with NO air or with air... Now I dont have to weasle my hand over/thru the hot cross ove pipe. ( in a panic situation )
I think this should be mandatory on this type situation !!!
BTW the rod goes in and out with normal start/stop,so make sure it slides freely and does not bind |
Jtng
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, July 13, 2005 - 11:40 pm: | |
Pipes-
That sounds like a better solution than running around the bus
screaming like the tire is sitting on your foot...
I uhh.... unknowingly tightened the fast idle air solenoid, thinking
it was too loose. I started the engine (no air up) and it went into
full throttle. Reaching between the fan belts to re-adjust the fast
idle solenoid was not all that funny at the time. I guess you;d have
to try that while the engine's going full tilt... scary.
Your manual shutoff device could have saved me some gray hair. |
pipes
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, July 13, 2005 - 11:55 pm: | |
I heard of a busnut That took the oil pan off to check the bearings...take of the caps one at a time, And was using the starter to bump it over!! And of course with NO air in the system
I bet you can guess the rest of the story |
Jtng
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, July 14, 2005 - 12:01 am: | |
Is he still alive, or do we tip our hats? |
Brian Brown (Blue_velvet)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, July 14, 2005 - 12:03 am: | |
"I bet you can guess the rest of the story"
Sounds like something I would do. Gads, that's awful. |
Brian Brown (Blue_velvet)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, July 14, 2005 - 2:21 am: | |
"...or do we tip our hats?"
Prolly just a tip of the hat to the premature passing of a Detroit Diesel. |