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Old 04-26-2016, 02:09 PM   #31
Bus Geek
 
Join Date: May 2009
Location: Columbus Ohio
Posts: 7,954
Year: 1991
Coachwork: Carpenter
Chassis: International S3800
Engine: DT360
Rated Cap: 7 Row Handicap
Quote:
Originally Posted by Tango View Post
Allison's 5th gen trannies can talk to an all mechanical engine with nothing more than a TPS (throttle position sensor). They have been out now for about three years (?) and there may be a few avail at the graveyards. Big change from the all proprietary computer speak models.

Mine is a six-speed, 2200 MH that works that way.
heck even buying a REMAN 5th gen you'd probably be equal or same in cost .. maybe even less than having to go to someone like destroked and get a standalone tranny box...

-Christopher
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Old 04-26-2016, 02:30 PM   #32
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Location: Winlcok, WA
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LE (low emissions) is easily found.

The zinc in the old style oil fouls and destroys the catalyst in the emissions equipped engines built after 2007.

You have to ask for and may have to wait to purchase non-LE oil.

Just as non-LE oil is not forward compatible to newer engines, LE oil is not reverse compatible to older engines.
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Old 04-26-2016, 02:35 PM   #33
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Join Date: May 2009
Location: Columbus Ohio
Posts: 7,954
Year: 1991
Coachwork: Carpenter
Chassis: International S3800
Engine: DT360
Rated Cap: 7 Row Handicap
Quote:
Originally Posted by cowlitzcoach View Post
LE (low emissions) is easily found.

The zinc in the old style oil fouls and destroys the catalyst in the emissions equipped engines built after 2007.

You have to ask for and may have to wait to purchase non-LE oil.

Just as non-LE oil is not forward compatible to newer engines, LE oil is not reverse compatible to older engines.

in the hotrod world it tended to be stuff running non-roller cams that required ZDDP additives..

how do I know if my bus engine requires NON-LE oil? or requires ZDDP additives? most everyone here is running busses older than 2007.. im guessing theres an age at some point where the engines didnt require ZDDP anymore?

-Christopher
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Old 04-26-2016, 07:34 PM   #34
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Join Date: Apr 2016
Location: Alabama
Posts: 125
Year: 1991
Coachwork: Thomas Saf-T-Liner
Engine: Cat 3116
I've decided to go with the bus. Will be picking it up on May 6th! I just won't be shutting it off on the way back, just in case. Will try to post some pics up once I have it. Thank you all for the help.
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Old 04-26-2016, 09:55 PM   #35
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Location: Willamina, Oregon
Posts: 4,983
Year: 1997
Coachwork: Bluebird
Chassis: TC 1000
Engine: 5.9
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They usually start it for you when you pick it up. The guy that started mine attempted to start it like a car, couple pumps on the gas and hit the starter. Sit down in the seat and switch it off, then say woops. Find out if it starts again while you're there where you can get jumped.

Here they paint over everything and remove all the stop signs before you ever get it. It's weird that some states don't do that and the new owner has to do the painting and sign removal to be legal to drive.

Have a good first drive. That's pretty cool until your hands start getting sweaty.
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Old 05-02-2016, 12:54 PM   #36
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Join Date: Apr 2016
Location: Alabama
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Year: 1991
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Engine: Cat 3116
Looks like due to work my trip will be a little delayed. Supposed to be picking the bus up end of next week now. Can't wait!
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Old 05-02-2016, 03:59 PM   #37
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Join Date: Feb 2014
Location: Arizona via Baton Rouge
Posts: 640
Year: 1999
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Chassis: Freight-shaker (Freightliner)
Engine: Cat 3126b 250 HP
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Originally Posted by nwarner2010 View Post
I spoke to one of the mechanics today to get some more info on the 'hard to start' problem.

He said it will always start when cold, but when it is warmed up it will sometimes not start, sometimes it will, just a gamble. However, it sounds as though it will start more times then not. If it doesn't start after being left for 3-4 hours to cool down it will always start. When the bus doesn't start it does still turnover. He believes it to be some sort of electrical fault.

Anybody ever experience anything similar?

Tad bit late, but cowlitz, you think it could be a bad thermostat? If it is sending a hot signal, maybe it has a cut off to the fuel?? I am sure there is some way a mech motor has an overheat safety for starting.......
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Old 05-02-2016, 04:12 PM   #38
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Wouldn't that have to be the fuel shut off valve? Considering you haven't changed the timing and it's still getting air while turning over, it's obviously not getting fuel. If there are safety's tied to the fuel shut off valve I can see your point. Has your bus been overheating? You don't seem to have mentioned overheating at all.
Since that engine cranks over it seem to me that a nice manual fuel shut off would possibly solve a couple problems, but then I don't know all this safety system stuff.
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Old 05-02-2016, 04:14 PM   #39
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It is possible there is an overheat alarm shut off that would prevent starting if it was too hot.

But the OP never said anything about overheating. The comment was restarting when hot.

I am inclined to think it is something in the fuel shut off system.

It would be interesting to see if when the starter turns and it won't start if there is any fuel going out to the injectors.

The Cat 3208T that I had that would randomly stop running and would be hard to start at times would shut off the fuel to the injectors for no apparent reason. Since the repair would require a trip to the Cat House on the hook I was looking at a minimum of $3K repair which I didn't want to incur.
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Old 05-02-2016, 04:29 PM   #40
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Join Date: Apr 2016
Location: Alabama
Posts: 125
Year: 1991
Coachwork: Thomas Saf-T-Liner
Engine: Cat 3116
Interesting theories on the not starting when hot issue, when I get the bus I'll be able to do some better troubleshooting. The mechanic I spoke to on the phone didn't mention anything about the bus overheating. I'm really hoping its something simple. I'll have a 20hr drive (two days) in the bus driving it back, so I only plan on turning it off when I stop for the night to be on the safe side. According to the mechanic it should have no trouble starting up after sitting for the night.
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