Reply
 
Thread Tools Display Modes
 
Old 04-23-2016, 11:55 AM   #11
Bus Geek
 
Join Date: May 2009
Location: Columbus Ohio
Posts: 7,949
Year: 1991
Coachwork: Carpenter
Chassis: International S3800
Engine: DT360
Rated Cap: 7 Row Handicap
Quote:
Originally Posted by nwarner2010 View Post
I believe it is mechanical.

I'm diy inclined when it comes to cars, I do everything myself. Not sure how much different it is working on buses, never worked on big stuff before.

Sent from my XT1080 using Tapatalk

alot of it is similar.. only bigger.. often simpler than modern cars...

some of it is more dangerous.. like working on air brake components. . esp spring cylinders..

and alot of it seems unfamiliar to most because most of the busses are diesel with turbo chargers.. some are computerized.. the mechanical ones there is usually something cut and dry..

ie hard starts may be to the fact the glow plugs dont work.. or the fuel may be draining out of the fuel line back to the tank.. or the injector pump timing is mis-adjusted.. and of course dirty injectors, dirty fuel filters.. bad fuel.. electronic fuel solenoid (if equipped) is lazy at opening..

I do a lot of observations and notes of sound, sight, feel (every engine has a rhythm and a vibe), smell. etc when an engine runs correctly.. so that way I can get idea if it seems like its sick or not quite right...


when I bought my bus, I started up a couple with the same engine as mine to see if they all sounded the same.. and they did.. so I felt unless there were 3 with the exact same issue than likely mine is running right...

its all learn as you go and read as much as you can..

-Christopher
cadillackid is offline   Reply With Quote
Old 04-23-2016, 06:36 PM   #12
Skoolie
 
Join Date: Apr 2016
Location: Alabama
Posts: 125
Year: 1991
Coachwork: Thomas Saf-T-Liner
Engine: Cat 3116
Quote:
Originally Posted by cadillackid View Post
alot of it is similar.. only bigger.. often simpler than modern cars...

some of it is more dangerous.. like working on air brake components. . esp spring cylinders..

and alot of it seems unfamiliar to most because most of the busses are diesel with turbo chargers.. some are computerized.. the mechanical ones there is usually something cut and dry..

ie hard starts may be to the fact the glow plugs dont work.. or the fuel may be draining out of the fuel line back to the tank.. or the injector pump timing is mis-adjusted.. and of course dirty injectors, dirty fuel filters.. bad fuel.. electronic fuel solenoid (if equipped) is lazy at opening..

I do a lot of observations and notes of sound, sight, feel (every engine has a rhythm and a vibe), smell. etc when an engine runs correctly.. so that way I can get idea if it seems like its sick or not quite right...


when I bought my bus, I started up a couple with the same engine as mine to see if they all sounded the same.. and they did.. so I felt unless there were 3 with the exact same issue than likely mine is running right...

its all learn as you go and read as much as you can..

-Christopher
Good point on checking others with the same engine, wish I could have done that with mine. Depending on what the mechanic says on Monday I should be going to pick mine up first week in may.

I can't help but think if it was something simple surly the school would fix it...or maybe it's just easier to take another bus.

Sent from my XT1080 using Tapatalk
nwarner2010 is offline   Reply With Quote
Old 04-23-2016, 06:47 PM   #13
Bus Geek
 
Join Date: May 2009
Location: Columbus Ohio
Posts: 7,949
Year: 1991
Coachwork: Carpenter
Chassis: International S3800
Engine: DT360
Rated Cap: 7 Row Handicap
Quote:
Originally Posted by nwarner2010 View Post
Good point on checking others with the same engine, wish I could have done that with mine. Depending on what the mechanic says on Monday I should be going to pick mine up first week in may.

I can't help but think if it was something simple surly the school would fix it...or maybe it's just easier to take another bus.

Sent from my XT1080 using Tapatalk
sometimes fleet managers look for reasons to dump busses to get new ones.. so if they find ANYTHING wrong with a bus, they plead that its read yt oage out, and please sell it and buy a new bus to replace it...

esp if that bus doesnt match too many others in their fleet.. large school systems have their own service staff as much as they can, so if your bus ended up being one that was becoming an odd-ball, they may have just dumped it when they had any issue with it.. not even spending any time to track it down.. so it could still be something totally simple causing the issue..

-Christopher
cadillackid is offline   Reply With Quote
Old 04-23-2016, 07:04 PM   #14
Bus Geek
 
EastCoastCB's Avatar
 
Join Date: Sep 2014
Location: Eustis FLORIDA
Posts: 12,161
Year: 1992
Coachwork: Ward/AmTran
Chassis: International
Engine: dt466
Rated Cap: 78
A Cat being tough to start, especially in the cold, isn't anything shocking. Par for the course.
__________________
.
Roll Your Own Build Thread
EastCoastCB is offline   Reply With Quote
Old 04-23-2016, 07:06 PM   #15
Bus Geek
 
Join Date: May 2009
Location: Columbus Ohio
Posts: 7,949
Year: 1991
Coachwork: Carpenter
Chassis: International S3800
Engine: DT360
Rated Cap: 7 Row Handicap
Quote:
Originally Posted by EastCoastCB View Post
A Cat being tough to start, especially in the cold, isn't anything shocking. Par for the course.

how are the mechanical DT's to start in cold? oh wait you dot have cold you are in florida lol.. just wondering how a diesel with no glow and no grid can start easily in cold unless its plugged in?
-Christopher
cadillackid is offline   Reply With Quote
Old 04-23-2016, 07:16 PM   #16
Bus Geek
 
EastCoastCB's Avatar
 
Join Date: Sep 2014
Location: Eustis FLORIDA
Posts: 12,161
Year: 1992
Coachwork: Ward/AmTran
Chassis: International
Engine: dt466
Rated Cap: 78
Quote:
Originally Posted by cadillackid View Post
how are the mechanical DT's to start in cold? oh wait you dot have cold you are in florida lol.. just wondering how a diesel with no glow and no grid can start easily in cold unless its plugged in?
-Christopher
My DT stared IMMEDIATELY in 10 degrees F in KY in Nov. With only ONE G31 battery. After sitting for around six months.
Cat guys need like 2 8D's to think about starting!
__________________
.
Roll Your Own Build Thread
EastCoastCB is offline   Reply With Quote
Old 04-23-2016, 07:56 PM   #17
Skoolie
 
Join Date: Apr 2016
Location: Alabama
Posts: 125
Year: 1991
Coachwork: Thomas Saf-T-Liner
Engine: Cat 3116
Quote:
Originally Posted by cadillackid View Post
sometimes fleet managers look for reasons to dump busses to get new ones.. so if they find ANYTHING wrong with a bus, they plead that its read yt oage out, and please sell it and buy a new bus to replace it...

esp if that bus doesnt match too many others in their fleet.. large school systems have their own service staff as much as they can, so if your bus ended up being one that was becoming an odd-ball, they may have just dumped it when they had any issue with it.. not even spending any time to track it down.. so it could still be something totally simple causing the issue..

-Christopher
I can easily see this being the case. They had two older buses for sale and from pictures it looks like they've replaced the rest of the fleet. I suppose a bus being 25 years old they would be looking for an excuse to upgrade.

Sent from my XT1080 using Tapatalk
nwarner2010 is offline   Reply With Quote
Old 04-23-2016, 07:57 PM   #18
Skoolie
 
Join Date: Apr 2016
Location: Alabama
Posts: 125
Year: 1991
Coachwork: Thomas Saf-T-Liner
Engine: Cat 3116
Quote:
Originally Posted by EastCoastCB View Post
A Cat being tough to start, especially in the cold, isn't anything shocking. Par for the course.
Its an Oklahoma bus but I guess it can get cold there too during the winter months.

Sent from my XT1080 using Tapatalk
nwarner2010 is offline   Reply With Quote
Old 04-23-2016, 08:15 PM   #19
Bus Crazy
 
Join Date: Jul 2011
Location: Winlcok, WA
Posts: 1,607
A 1991 would be pre-electronically controlled.

The 3116's were known for their glitches. By the time they got as old as yours most of them had been worked through.

The $$$$ problem is if the problem is in the pump you have to go to a Cat approved repair facility to get the job done.

I had a 3208T that would have intermittent problems of losing prime. I finally parked the bus and eventually sent it down the road because it would have cost more to fix it than the bus was worth.

In order to troubleshoot the problem you have to determine why it isn't starting.
  • Starter turns and turns fast enough but the engine doesn't fire
  • Starter turns and turns fast enough but the engine only fires on one or two cylinders
  • Starter doesn't turn
  • Starter won't turn enough times
  • Starter doesn't turn fast enough
  • Engine fires but doesn't keep running
Each problem would have a different resolution. And the above problems are not all of the problems that could be causing the hard starting problem.

If you got the bus for a low enough price it might be worth the price. But the cost of getting into a pump and injectors on a 3116 can easily be more than what you paid for the bus.

Good luck.
cowlitzcoach is offline   Reply With Quote
Old 04-25-2016, 03:34 PM   #20
Skoolie
 
Join Date: Apr 2016
Location: Alabama
Posts: 125
Year: 1991
Coachwork: Thomas Saf-T-Liner
Engine: Cat 3116
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?
nwarner2010 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Virginia Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 09:38 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.