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05-06-2016, 08:53 PM
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#21
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Almost There
Join Date: Jan 2016
Location: Tepme AZ
Posts: 97
Year: 1976
Coachwork: Crown
Engine: Detroit Diesel 6-71
Rated Cap: 52 pax
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Quote:
Originally Posted by cowlitzcoach
I may be mistaken but I think that air shut off valve is either from Williams or it is a stock Detroit Diesel part.
I know my MCI with an 8V-71 had almost the save air operated fuel shut off valve.
Brake Systems Inc. - Product Lines
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Thankyou! I'm going to give them a call on Monday.
I am also considering adding the electric unit. What kind would I need? Would I want the have its "relaxed" or "non powered" position be retracted so when the button is pushed it extends and shuts down the bus or one that its relaxed position is extended, power applied and it retracts to let the engine run then extends to its relaxed position to shut down? I hope that made sense.
Would one way or the other be better? I'm thinking the former would be best because it only has to be used briefly to stop the motor. Would it wear out faster always having power while to motor is running?
Thank you all for that info and the funny cartoons!!
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05-10-2016, 12:09 PM
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#22
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Bus Crazy
Join Date: May 2016
Location: Georgia
Posts: 2,264
Year: 2001
Coachwork: Blue Bird
Chassis: IH
Engine: T444E
Rated Cap: 14
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I drove an old '73 cabover Pete that had the 8V71 engine, it did not have an air-actuated cutoff, but instead, it had a red "kill" knob that one pulled to cut the engine. I just picked up an '87 IH bus with the 9 L engine that is set up with a similar "Kill knob" you pull out to cut the engine. The air cutoff works, it is simply a more "automatic" way set up to shut down these mechanical engines. If it were me, I wouldn't bother with an electrical version as the manual versions were very much the factory original setup (at least in my 2 cases), and, it's one more thing to maintain and "go wrong" over time.
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05-10-2016, 12:38 PM
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#23
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Bus Geek
Join Date: Feb 2016
Location: Willamina, Oregon
Posts: 6,409
Coachwork: 97 Bluebird TC1000 5.9
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There have been several people that experienced bad electrical fuel shut off valves that either don't work or they work intermittently. A manual fuel shut off is a good thing.
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05-10-2016, 12:40 PM
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#24
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Bus Geek
Join Date: Sep 2014
Location: Eustis FLORIDA
Posts: 23,764
Year: 1999
Coachwork: Thomas
Chassis: Freighliner FS65
Engine: Cat 3126
Rated Cap: 15
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There's a satisfaction in pulling that little chrome t-handle, man.
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05-10-2016, 12:51 PM
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#25
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Bus Geek
Join Date: Feb 2016
Location: Willamina, Oregon
Posts: 6,409
Coachwork: 97 Bluebird TC1000 5.9
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Another good part of the manual shut off is only older people seem to know how to start the rig.
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05-10-2016, 01:27 PM
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#26
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Bus Geek
Join Date: Mar 2011
Location: Houston, Texas
Posts: 8,462
Year: 1946
Coachwork: Chevrolet/Wayne
Chassis: 1- 1/2 ton
Engine: Cummins 4BT
Rated Cap: 15
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I have a perfectly good Cummins solenoid if anyone needs one. $25 bucks plus shipping. I am replacing it with a lo-tech but highly reliable on/off rod.
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05-10-2016, 02:13 PM
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#27
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Bus Geek
Join Date: May 2009
Location: Columbus Ohio
Posts: 18,830
Year: 1991
Coachwork: Carpenter
Chassis: International 3800
Engine: DTA360 / MT643
Rated Cap: 7 Row Handicap
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Quote:
Originally Posted by EastCoastCB
There's a satisfaction in pulling that little chrome t-handle, man.
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nostalgia for me from the diesel scout days.. and priceless for letting a friend drive that never payed attention and couldnt figure out how to start the scout..
-Christopher
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05-10-2016, 04:07 PM
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#28
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Bus Geek
Join Date: Feb 2016
Location: Willamina, Oregon
Posts: 6,409
Coachwork: 97 Bluebird TC1000 5.9
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Reliability for me. Also works as a sort of security system for the truck/bus.
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05-10-2016, 04:36 PM
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#29
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Bus Crazy
Join Date: Apr 2013
Location: Colorado
Posts: 2,359
Year: 1993
Coachwork: bluebird
Engine: 5.9 Cummins, Allison AT1545
Rated Cap: 2
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when i got my bus from the school district, the cut off solenoid wasnt working and their mechanic showed me how to turn it off.
he mentioned that he had replaced that same solenoid 7 or 8 times and that it was an easy fix.
when i got it home, my mechanic installed that chrome T handle shut of cable. no problem since.
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05-10-2016, 08:14 PM
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#30
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Almost There
Join Date: Jan 2016
Location: Tepme AZ
Posts: 97
Year: 1976
Coachwork: Crown
Engine: Detroit Diesel 6-71
Rated Cap: 52 pax
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I do like the idea of the manual shut off, however it might be hard to run it the 15 feet or so to the engine and then of course all the linkages to make it all work... I don't think I could get clear shot at it. Maybe some sort of cable system? hmmm... If I could just find an original part.
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05-11-2016, 02:38 AM
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#31
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Bus Crazy
Join Date: May 2016
Location: Georgia
Posts: 2,264
Year: 2001
Coachwork: Blue Bird
Chassis: IH
Engine: T444E
Rated Cap: 14
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Quote:
Originally Posted by Chevydude01
I do like the idea of the manual shut off, however it might be hard to run it the 15 feet or so to the engine and then of course all the linkages to make it all work... I don't think I could get clear shot at it. Maybe some sort of cable system? hmmm... If I could just find an original part.
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That's exactly what most of them are, cable type setups.
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