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 41 
 on: December 09, 2017, 11:09:28 AM 
Started by oldmansax - Last post by oldmansax
My 6v92 has a 2 stage Jake Brake that doesn't work; however. when I start the coach cold, one side of the Jake Brake is on. After it runs 40 seconds to 1 minute (depending on how cold it is), Jake goes off and engine runs fine. The only test I have done is to remove 1 wire from the buffer switch to see if that made any difference. It didn't. I have tried starting with Jake switch off, on LO, and on HI, and that made no difference either. The Allison trans has a retarder and a switch for JAKE, OFF, & RETARD. That makes no difference either.

Any ideas?

TOM

 42 
 on: December 09, 2017, 11:07:13 AM 
Started by paul102a3 - Last post by windtrader
@Mike - One of the reasons for getting the bus, pretty low on the list, was as a mobile second domicile, free to move where desired in case of natural disaster or doomsday event. I certainly am not a card carrying prepper or survivalist but conditions and events just make me more uneasy that some big shiiite could go down. It is highly comforting to know that as long as we can escape the bay area and get to the bus, we can survive a whole lot better than most folks.

Clifford and Mike, the effect of the CARB rules on older two strokes has pretty much run its course through the commercial truck industry in CA, at least from what I know. Any that has not had the PM conversion is virtually off the road for any commercial use now as the last of the extensions have run out January 2016. That was allowing some to remain in fleets based on the percentage of the fleet being otherwise compliant and current. There is one other exemption allowing some minimal use, like under 5,000 miles a year. I think that one still is in force.
https://www.arb.ca.gov/msprog/onrdiesel/documents/faqLowuse.pdf
https://www.overdriveonline.com/carb-to-boost-low-use-mileage-exemption/
https://www.arb.ca.gov/msprog/onrdiesel/documents/FSRegSum.pdf

Agree with you on the coming glut of old buses for sale. The way I read the regulation (3rd link) is just before 2020 there may be a great buy opportunity for mid-late 90's 4 stroke like a MCI 102 Series 60 motor. It seems that by 2020, heavy trucks/buses with 1996-1999 motors will need to have at least a 2010 or newer motor. Operators will surely be dumping them cheap and getting new ones. Time to buy stock in the large truck companies.

As long as the motorhome conversion rules remain intact then we can still use the loophole to buy an old commercial non-compliant bus, convert it, and register it as a motorhome, bypassing the regulation. Much like how we run the old two strokes on the road today.

Until they get rid of diesel vehicles altogether it seems to me that we old busnuts will still be able to run down the road. But as we already experience getting supplies and parts will continue to diminish; take getting low ash straight 40 weight oil for example.

The thing with California, specifically the SF Bay Area, is people put up with all the BS, extreme costs and regulations, due to one thing. It is in the top ten most beautiful and enriched, culturally, socially, and geographically, weather, economically, etc locations in the world. Dec 9, sitting outside with a light shirt on, under clear blue skies, 60 degrees, overlooking the green rolling hills. Does not get any better. Now, don't ask once I have to leave to house and go anywhere. LOL

@Neodaddy - LetGo - the problem isn't finding ways to get rid of stuff. The problem is my wife accuses me of being a hoarder. I seen them shows and I am no hoarder but I'll admit it is hard to let go of anything that seems like it can be repurposed or reused down the road. Hey, my insurance covers seeing a shrink; maybe, I can get hypnotized to get rid of all the stuff. LOL

 43 
 on: December 09, 2017, 10:39:24 AM 
Started by B_K - Last post by HB of CJ
How many Crowns sold in total as schoolies?  Dunno.  Crown also made special weird stuff including weirds, fire apparatus, mobile libraries, medical vans, military, etc..  Each practically hand built.

In total?  You will get different numbers.  I was told around 5500 but that might be wrong.  Started around 1949?  Ended 1991.  There are many websites discussing Crown Supercoaches. ... 

www.crowncoach.com?

www.crowncoachjunkies.com?

Try a Google search?

 44 
 on: December 09, 2017, 10:11:16 AM 
Started by B_K - Last post by Oonrahnjay
  ...  As for adding a bit of extra boost to get it up to speed, check this out:
https://www.youtube.com/watch?v=NfkOOt_Sf68 

      Where do you find school bus tires good for 300 MPH?HuhHuh

 45 
 on: December 09, 2017, 10:01:58 AM 
Started by oltrunt - Last post by dtcerrato
That's a very nice story Jack! Count me in when it comes to maintaining a vintage excellent piece of equipment. Lots of stuff that was salvaged out of our class C S&S after we totalled it on the grapevine went into our 4104 conversion. The "Fireball" S&S was a 1973 so it was going into a 53 bus and was like new stuff. One appliance in the bus to this day (as many appliances have been upgraded over the years) is an Empire radiant heater with an optional 12 volt blower fan on it. No electric other that that, light with a match, pilot light from there. It's only 11,000 btu propane. 5000 of that can be forced into the insulated holding tank compartment with the optional fan. Some years back we finally found a replacement gas control valve for it and was able to keep it in service. It is an ace in the hole especially if the batteries are dead. It has bailed us out a few times over the years and is externally vented for intake & exhaust, It is a backup to a modern Atwood 35,000 btu furnace and a memory awakener everytime we use it. I'm with you Jack...

 46 
 on: December 09, 2017, 10:01:14 AM 
Started by oltrunt - Last post by oltrunt
Brian, I asked the same question and after a bit of internet sleuthing, I'm still scratching my head.
 
I just went back to the net and found an explanation presented with great gravity by some long winded scientist.  Apparently materials who's molecules are tightly packed together have greater mass (hence weight) than materials who's molecules are loosely, less densely packed together.  Dr. science went on to explain that as air is heated it's molecules move  about more rapidly and begin to spread out.  This leads to fewer hot air molecules per volume than would be the case with cold air of the same volume.  The relationship between mass, volume and gravity somehow equates to weight and since hot air weighs less than cold air, hot air rises and cold air flows down to replace it--the basis for the name "gravity heater"

Bet you're sorry you asked--I know I am Cheesy  Jack

 47 
 on: December 09, 2017, 09:48:33 AM 
Started by B_K - Last post by CrabbyMilton
Interesting perspective. I agree that if they were still building skoolies, they would have had the modern power trains but where I would beg to differ is that they likely may have phased out the mid engine version and concentrated on the the rear engine since they had an updated version toward the very end that was indeed a handsome model. But, the market moved toward the lower cost shorter life skoolies.
Now a question for you CROWN experts out there: How many CROWNS were sold in the midwest and east coast?
If so, how did they hold up to harsh winters since most were sold on the west coast?

 48 
 on: December 09, 2017, 09:47:26 AM 
Started by B_K - Last post by windtrader
Well, some folks appreciate the Crowns. SOLD - out the door $6k. lots of money these days for a 30 year schoolie.

As for adding a bit of extra boost to get it up to speed, check this out:
https://www.youtube.com/watch?v=NfkOOt_Sf68

 49 
 on: December 09, 2017, 09:24:04 AM 
Started by luvrbus - Last post by Utahclaimjumper
 The FMCA name has not changed.>>>D (FMC has always existed)

 50 
 on: December 09, 2017, 07:54:37 AM 
Started by johnjem - Last post by buswarrior
Call IBP.

They have done lots of special order stuff for busnuts, and have helped busnuts save money by making alternative suggestions.

Don't worry about what is, or isn't, appearing on their website, for a price, they can make it.

happy coaching!
buswarrior

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