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61
The Costco's and Sam's Club's around here in the midwest either don't have diesel, or if they do, have islands that are not roomy enough to handle large vehicles. Chains like Casey's or Circle K can have more room. If the price is good I don't mind waiting to fill with small slow nozzles, but the the lower volume stations have more opportunity for contaminated fuel clogging the filters.


I like filling with small nozzle's ,no foam, time to walk around and do checks and clean the windshields and walk the pets ,plus they are cleaner.I liked the older Flying J's you could get fuel,dump you tanks,fill with water,and buy propane if needed all at the RV island with out moving and there was no dump fees   
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Bus Topics ( click here for quick start! ) / Re: Engine shuts itself down.
« Last post by niles500 on November 30, 2024, 06:05:14 PM »
In my experience 90% of shutdowns on 8v92's are from low coolant fwiw
63
Bus Topics ( click here for quick start! ) / Re: Engine shuts itself down.
« Last post by Coach_and_Crown_Guy on November 30, 2024, 05:09:53 PM »
The old GMCs had what they called MotoGard and it behaved exactly as you described. Usually there was also an emergency button or spring loaded toggle to get yourself off railroad tracks etc if it stopped. This had to be done BEFORE the engine quit or you were screwed. GM and MCI had a warning light come on, MCIs  would blink for a while before going full on and that was your only warning from MotoGard.

This tracks exactly with your explanation for how it was designed and implemented long before any computers were involved. If there isn't an overrode button already in place it might make sense to add one yourself and have the option of keeping the engine running... as long as you know the alarmed items are in fact still OK.

If it was high water temp you could usually downshift and lower the temp and the warning light would go out. Been there, done that. I think I'm not a fan of the whole "low coolant" sensor idea. I've heard too many cases from many brands and experienced them myself where the low coolant alarm comes on and causes trouble when in fact there isn't anything wrong and the levels are fine. More crap to go wrong is what I usually say.

We lived for years without any sensors and just always made sure to check every day and could usually spot any leaks or incipient problems from how the temperature acted while driving. That's what made a professional driver, he knew his vehicle and how to drive and care for it.
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Bus Topics ( click here for quick start! ) / Re: Engine shuts itself down.
« Last post by richard5933 on November 30, 2024, 02:54:00 PM »
I had this happen on the low coolant sensor on my 4108 - it would run for a few minutes and then shut down. Got that sensor changed and all was good, for a while.

In my 4108 there were a few systems which had safety shutdown relays, including one for low oil pressure and I believe another for high temp. The way they worked was that once a fault triggered a relay it sent power to another relay with a small bi-metallic heating element. If that stayed energized long enough the heating element bent over and cut power to the system which kept the engine running.

Once that all happened and the engine shut down, it would not restart until that bi-metallic heating element cooled off and re-established contact. Until the fault was corrected it would only run a short time.

Don't know exactly which system your bus has, but it's old enough to have one of these mechanical fail-safes installed. Check your manuals and wiring diagrams carefully to see what you've got.
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Bus Topics ( click here for quick start! ) / Engine shuts itself down.
« Last post by peterbylt on November 30, 2024, 02:21:31 PM »
1989 MCI 96A3 8V92TA, mechanical engine.

Engine starts up and runs fine no issue.

Good oil pressure, good air pressure, 175 degrees, no outstanding lights on the dash.

After 10 minutes or so of idling it activates the air valve that shuts it down.

A minute or less after it shuts down the valve pops back to normal and lets me start it again.

I did not check yet, but it occurred to me on the way back from the yard it might be something like a low coolant sensor? Do they have a low coolant sensor?

What else would trigger a shutdown like this?

I am not stuck on the road, discovered this in the storage yard, but I do have a trip planned next weekend and don’t want to be stuck on the road.

Peter
66
The Costco's and Sam's Club's around here in the midwest either don't have diesel, or if they do, have islands that are not roomy enough to handle large vehicles. Chains like Casey's or Circle K can have more room. If the price is good I don't mind waiting to fill with small slow nozzles, but the the lower volume stations have more opportunity for contaminated fuel clogging the filters.
67
Bus Topics ( click here for quick start! ) / Re: Drivers platform in coach bus
« Last post by freds on November 30, 2024, 11:26:18 AM »
On my 80 prevost it has an air throttle.

Get someone to weld you up an extension platform for the seat and then fill in a build up area around it.

I have thought about this myself and then have the drivers seat swivel so it can double for entertaining in the cabin.

 
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So are old MCIs, Eagles, and Prevosts. Younger generations have little interest in ANY bus conversion. Witness the rapid shrinkage of FMCA. They started including rv's and travel trailers to stop the bleeding. 5 to 7 miles per gallon is a killer anymore. A bus conversion is too expensive to own and operate anymore except for well heeled and very mechanically inclined.
Even here, Bno, and Facebook have fewer followers any more. Ask Gary. He knows.

Fewer people are buying these over-the-road buses than there used to be.  It used to be that if you wanted a 35 - 40' motorhome, the only way to get one was to buy a bus and convert it yourself.  Then, manufacturers started building larger motorhomes. 

Also, when I was in high school in the early 70's, many of us took shop classes and learned how to rebuild engines and run machinery.  Those days are long gone and replaced with kids who only know how to use a keyboard.  So it is becoming increasingly difficult to find youngsters who can work on anything mechanical.  That being said, if they do have the inclination to convert a bus, it is generally a school bus with many fewer miles on it and can get serviced in many more places than a 50+-year-old Eagle bus like mine. Fortunately, I can do most of the maintenance and work on my bus, so I don't have to pay someone to do the work, which would make owning a bus not affordable for me. 

Many younger people can only afford a less expensive school bus and put every cent into converting it, then beg for money when they break down. But they are in a bus conversion for sometimes much less money than an over-the-road coach that will run millions of miles and more comfortably than a rough-riding school bus with no storage bays under it for tanks and storage. So, they spend more time hanging everything under the bus, which frequently becomes a disaster after hitting the first bump.  Truth be told, less than half of the people who start converting a bus ever finish it, and the numbers are even less for school bus owners.

The second thing that killed over-the-road buses is most do not have slides, so middle-aged and older folks prefer having more room whilst parked, especially if they plan to stay in their coach for long periods, thereby reducing the market value of used buses without slides.  So, being able to buy a manufactured motorhome 40' long was a significant first hit in the bus conversion business. Adding slides was the second big hit, along with the younger generation's inability to work on these old buses or even have an interest in getting their hands dirty.

Growing up on a farm, I never worried about getting my hands dirty. Or my entire body if I turned the tractor too sharp when spreading manure on a windy day.  ;D
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Is anyone familiar with this Prevost?  A young couple parked next to me in SoCal bought it this week and wondered if anyone knows anything about it.  They said it was previously called the "Silver Bullet".  The rear wheel wells look unusual to me, and I am wondering if this design if from the Factory or was a conversion modification.
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You can find Walmart,Sam's and Costco across the US that have plenty of space for RV's towing to fuel,I stop at one in West Texas that has truck pumps with the large nozzles for fueling in a hurry,I use the W/M app for fuel it saves money. Don the difference between fuel in Needles vs Az here is a little over 2 bucks a gallon ,well worth the 3 mile trip across the river ,heck we are getting places selling non ethanol gasoline now 
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