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Steve Krane (Steve_krane)
Registered Member
Username: Steve_krane

Post Number: 33
Registered: 1-2007
Posted From: 76.176.170.219

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Posted on Wednesday, January 28, 2009 - 9:20 pm:   

My mean miles between failure after 12,000 miles in a PD4106 with fairly recent (by bus standards) replacement of drivetrain and major moving parts is:

MINOR - Something I have to fix
MAJOR - Something that interrupts plans or causes high stress
HAZARDOUS - Something that could have hurt someone

MINOR: 1 per 500 miles
MAJOR: 1 per 3000 miles
HAZARDOUS: No events
RJ Long (Rjlong)
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Username: Rjlong

Post Number: 1496
Registered: 12-2000
Posted From: 67.181.166.160


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Posted on Wednesday, January 28, 2009 - 10:41 pm:   

Steve -

Interesting stats, and adaptation of something from the aircraft industry.

Would you mind elaborating on what the minor and major events were?

Thanks,

:-)
Josh McElhiney (Zcommanager)
Registered Member
Username: Zcommanager

Post Number: 18
Registered: 1-2009
Posted From: 166.217.46.48

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Posted on Thursday, January 29, 2009 - 10:48 am:   

Interesting thread Steve. I'm coming up on roughly 3000 miles, perhaps a little more, on mine. I guess I should expect something major to fail soon?? YIKES!!! Not what I want to think about as I am getting ready to transport mine from Ohio to Pennsylvania tomorrow!

I'd be interested, as well, in hearing (or reading) what type of events fall into your respectivce catagories.

Thanks,

Josh
Laryn Christley (Barn_owl)
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Username: Barn_owl

Post Number: 576
Registered: 10-2006
Posted From: 151.199.10.101


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Posted on Thursday, January 29, 2009 - 11:13 am:   

I am planning an ~ 7500 mile western trip in May. I need zero MMH.
Jack Conrad (Jackconrad)
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Username: Jackconrad

Post Number: 936
Registered: 12-2000
Posted From: 72.57.236.196

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Posted on Thursday, January 29, 2009 - 2:50 pm:   

Well, let's see. 42,000 miles and 2 tire failures, 1 fuel line failure (collapsed), and 2 power steering hose failures. The first tire failure was a tag and we had road service install our spare. Second tire failure, we had road service install a new tire. Fuel line collapse was handled by running our water hose from the fuel tank (installed through filler cap) to primary filter and we continued to the bluegrass festival. Line was replaced when we got home. Both power steering hoses failed close enough to home to make it home and replace at my shop.
We try to manitain a thorough preventive maintenance progam to prevent as many breakdowns as possible. Always better to replace a part at home in my shop BEFORE a failure on the road.
Dale Houston (Songman)
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Username: Songman

Post Number: 80
Registered: 8-2006
Posted From: 66.17.9.74


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Posted on Thursday, January 29, 2009 - 6:03 pm:   

Hmmmm.. I've only driven my bus 400 miles but it was flawless from start to finish. Here's to hoping that it stays that way!
Frank Allen (Frank66)
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Username: Frank66

Post Number: 105
Registered: 10-2005
Posted From: 64.12.117.73

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Posted on Friday, January 30, 2009 - 1:05 pm:   

only broke down twice in 20 yrs, once ran out of fuel, once with a minor elec problem, did rebuild a lot of things in early yrs but ive really been lucky with this bus
Frank allen 4106
Steve Krane (Steve_krane)
Registered Member
Username: Steve_krane

Post Number: 36
Registered: 1-2007
Posted From: 76.176.170.219

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Posted on Monday, February 02, 2009 - 9:11 pm:   

Mine were:
- Intermittent faulty starter solenoid (replaced at shop)
- Air hose popped off under air ride drivers seat (that was exciting for the sound as much as anything)
- Headlamp switch hot-shorted after pulling into an I-10 rest area at 1 am and filling the cabin with smoke before getting the battery disengaged. (remember where your fire extinguishers are). Removed dash panel (easy) isolated hot 12V and drove home in the day. Learned that there is a difference between an AC and DC rated switch (arcing at contact)
- Leaking/loose fuel suction line check valve (stopped/ towed). That's the trip I learned how the fuel system works.
- Plugged fuel filters, lost all power (replaced, reprimed, had the parts, knew how because of learning from the previous failure. Gonna start BioBor and keep at least two extra filters of each.

The bus had a 10-year garaged period of little use before I bought it two years ago. I think its just getting limbered up.

Most of the failures are minor "house" issues. I have kids so that adds to those...
Steve Krane (Steve_krane)
Registered Member
Username: Steve_krane

Post Number: 37
Registered: 1-2007
Posted From: 76.176.170.219

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Posted on Monday, February 02, 2009 - 9:18 pm:   

Jack,
That's pretty innovative using your water line for a fuel line to get home. I was thinking of buying 30 ft of rubber fuel hose just in case but maybe I'll just get an adapter to 1/4" NPT. Diesel won't eat eat the hose?
R.C.Bishop (Chuckllb)
Registered Member
Username: Chuckllb

Post Number: 467
Registered: 7-2006
Posted From: 75.209.117.161

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Posted on Monday, February 02, 2009 - 11:08 pm:   

Redundancy is fine....to a point. Best deal is just to check things out prior to a trip, or take the time, preferably on a routine basis.

Case in point....I try to get my coach "serviced" yearly, no matter the mileage put on. Been to the same service facility for years. A couple of weeks ago I, for whatever reason, decided to do the lubing and filter changing, in advance of changing the oil in the near future...never have done it before.

Found a "bunch" of zerks that had not been touched, probably in many years. It took more than two grease gun fills just to do those (8-10 I would guess). Also checked all air connections and found two that were leaking badly. A cleaning and re-connect resolved the issue of air loss I had been noticing.

As discussed (archives) a long time ago, one could carry an extra engine, transmission, etc....but is it 1) necessary 2) worth it?

Think from now on I'll be saving $200+- a year, less the parts and oil, of course. Your decision. As FF says..."do it your way".

FWIW :-)

RCB
1964 Crown Supercoach (HWC)
Patrick levenson (Zubzub)
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Username: Zubzub

Post Number: 52
Registered: 5-2007
Posted From: 76.66.202.8


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Posted on Tuesday, February 03, 2009 - 10:18 am:   

Same here on the servicing I always do my own PM stuff as well as oil changes etc...It would be cheaper to have a shop do it when I am in full production at work, but I have consistently found that garages miss stuff or don't mention stuff or break more stuff than I do or don't tell me when they break stuff (I have still not managed to not tell me something when I mess up). Also when I am under my vehicles I notice what else needs doing in the near future.
R.C.Bishop (Chuckllb)
Registered Member
Username: Chuckllb

Post Number: 469
Registered: 7-2006
Posted From: 75.209.58.97

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Posted on Tuesday, February 03, 2009 - 11:06 am:   

X-actly....!! One place where familiarity does not breed contempt...:-); unless, perhaps toward the "don't give a flip" attitude displayed by an in-diligent (is there such a word??) technician (also often questionable} who was responsible, and paid for, prior servicing...

and on and on and on.....:-( :-)

Keep a tight wheel. :-)
RCB

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