Reply
 
Thread Tools Display Modes
 
Old 07-14-2017, 09:47 PM   #201
Mini-Skoolie
 
Join Date: Dec 2016
Location: Calgary, Alberta
Posts: 49
I love that conversion you've built. Been looking for a good bus myself but I'm concerned about fuel mileage in something like a coach. What mileage do you get in that one?
Bon Voyage is offline   Reply With Quote
Old 07-17-2017, 09:23 AM   #202
Bus Nut
 
JDOnTheGo's Avatar
 
Join Date: Feb 2017
Location: The West
Posts: 399
Year: 1998
Coachwork: MCI
Chassis: 102 EL3
Engine: DD 60
Rated Cap: 50k
Quote:
Originally Posted by Bon Voyage View Post
I love that conversion you've built. Been looking for a good bus myself but I'm concerned about fuel mileage in something like a coach. What mileage do you get in that one?
Thanks Bon!

Returning home with the newly purchased coach, I was able to get a good number and it was nearly 8.5 mpg (basically empty bus and not towing anything).

The most recent, partial tank calculation was just over 7 mpg. That is running about 65 mph, towing my Jeep, carrying 130 gallons of water, and hauling every single thing I own.
__________________
JD - Full timer out west
Missy - 1998 MCI 102-EL3 - 1.7kW Solar - 10kWh Lithium
My Adventures & Build
JDOnTheGo is offline   Reply With Quote
Old 07-17-2017, 02:33 PM   #203
Bus Nut
 
Join Date: Jun 2016
Location: Orange County, CA
Posts: 457
Year: 1990
Coachwork: integral
Chassis: Crown Supercoach II (rear engine)
Engine: Detroit 6V92TAC, DDEC 2, Jake brake, Allison HT740
Rated Cap: 37,400 lbs GVWR
When I use a Kill-A-Watt while running things either from my generator or Magnum MS2000 sine-wave inverter, I get the same readings as when from shore power. Square-wave power does weird things - it can make motors run hotter, it can confuse some electronics such as microwave timers, and it can even destroy some things altogether. I suspect that Power Factor is worsened when on square-wave, maybe? Have you tried comparing a reactive load's PF between being on square wave and being on generator or shore power?

John
Iceni John is offline   Reply With Quote
Old 07-17-2017, 03:18 PM   #204
Bus Nut
 
JDOnTheGo's Avatar
 
Join Date: Feb 2017
Location: The West
Posts: 399
Year: 1998
Coachwork: MCI
Chassis: 102 EL3
Engine: DD 60
Rated Cap: 50k
Quote:
Originally Posted by Iceni John View Post
When I use a Kill-A-Watt while running things either from my generator or Magnum MS2000 sine-wave inverter, I get the same readings as when from shore power. Square-wave power does weird things - it can make motors run hotter, it can confuse some electronics such as microwave timers, and it can even destroy some things altogether. I suspect that Power Factor is worsened when on square-wave, maybe? Have you tried comparing a reactive load's PF between being on square wave and being on generator or shore power?
Yep, right on John. No new info as this:
Quote:
Originally Posted by JDOnTheGo View Post
I do not currently have shore power to confirm the meter works with it.
... has not changed and isn't going to change for another week or two. I don't even carry a generator. I am thoroughly enjoying my high altitude, cool weather, isolation!!
__________________
JD - Full timer out west
Missy - 1998 MCI 102-EL3 - 1.7kW Solar - 10kWh Lithium
My Adventures & Build
JDOnTheGo is offline   Reply With Quote
Old 07-24-2017, 08:19 AM   #205
Bus Nut
 
JDOnTheGo's Avatar
 
Join Date: Feb 2017
Location: The West
Posts: 399
Year: 1998
Coachwork: MCI
Chassis: 102 EL3
Engine: DD 60
Rated Cap: 50k
I think I've previously mentioned that I have (had??) an oil leak on the passenger side of the engine compartment. I had one shop look at it and they thought they had found a loose power steering hose connection that was the source. I drove it a few hundred miles and it seemed "better". I was thinking that there was residual oil still dripping. However; in my last long run, it was very clear that the leak was still there.

I don't have any tools large enough for the most of the connections in the engine compartment (all are 1" or larger). So, I bought a set of "service wrenches" from Harbor Freight and started checking every hose connection. I couldn't find any loose hoses so I just started poking around, looking at everything.

What's this!?!??! A small hose with a compression fitting that is not connected to ANYTHING - just laying there. VERY interesting, says I. Amazingly, a few inches away, is a connector of the very same size on top of the primary alternator!! Sure enough, the hose that provides lubrication oil to the alternator is not even connected. ARGH!!!

This is a Delco 50DN alternator that produces 270 amps at 24V. Give or take a few bucks, it is a $2,000 part. Ouch.... My reading indicates that it uses engine oil for lubrication and cooling, the oil supply is metered so that seems to support the "moderate" leak that I have.

So, I've reconnected the hose and I have my fingers crossed that the oil leak is fixed AND that I have NOT ruined the alternator - nervous optimism!

The frustrating thing is that this hose was disconnected when I purchased the coach - excluding the possibility that it worked itself loose and all the way off while I have been driving it (~4000 miles).
__________________
JD - Full timer out west
Missy - 1998 MCI 102-EL3 - 1.7kW Solar - 10kWh Lithium
My Adventures & Build
JDOnTheGo is offline   Reply With Quote
Old 07-24-2017, 08:30 AM   #206
Bus Geek
 
Join Date: May 2009
Location: Columbus Ohio
Posts: 8,360
Year: 1991
Coachwork: Carpenter
Chassis: International S3800
Engine: DT360
Rated Cap: 7 Row Handicap
wowsers a 2k alternator.. and only 270 amps..

I figured a coach like that would be running over 400 amps with all the A/C, reading lights, electronics, etc in it...

for that kind of $$ I think id find a way to use 2 SB200's at $220 each! for 200 amps
-Christopher
cadillackid is offline   Reply With Quote
Old 07-24-2017, 09:05 AM   #207
Bus Nut
 
JDOnTheGo's Avatar
 
Join Date: Feb 2017
Location: The West
Posts: 399
Year: 1998
Coachwork: MCI
Chassis: 102 EL3
Engine: DD 60
Rated Cap: 50k
Quote:
Originally Posted by cadillackid View Post
I figured a coach like that would be running over 400 amps with all the A/C, reading lights, electronics, etc in it...
Indeed! It actually has TWO alternators. I didn't even look at the other one but I suppose I better. As I understand it, it is a backup alternator - 12V and 140 amps. There is an interesting mix of 12V and 24V on the coach but I have not taken the time to really understand it... yet.
__________________
JD - Full timer out west
Missy - 1998 MCI 102-EL3 - 1.7kW Solar - 10kWh Lithium
My Adventures & Build
JDOnTheGo is offline   Reply With Quote
Old 07-24-2017, 09:36 AM   #208
Bus Nut
 
JDOnTheGo's Avatar
 
Join Date: Feb 2017
Location: The West
Posts: 399
Year: 1998
Coachwork: MCI
Chassis: 102 EL3
Engine: DD 60
Rated Cap: 50k
A photo of the evil hose!!



... and why it was difficult to see.

__________________
JD - Full timer out west
Missy - 1998 MCI 102-EL3 - 1.7kW Solar - 10kWh Lithium
My Adventures & Build
JDOnTheGo is offline   Reply With Quote
Old 07-24-2017, 09:38 AM   #209
Bus Nut
 
JDOnTheGo's Avatar
 
Join Date: Feb 2017
Location: The West
Posts: 399
Year: 1998
Coachwork: MCI
Chassis: 102 EL3
Engine: DD 60
Rated Cap: 50k
Quote:
Originally Posted by cadillackid View Post
for that kind of $$ I think id find a way to use 2 SB200's at $220 each! for 200 amps
I think those are 12V alternators, aren't they? I'm not smart enough to know how one would combine them to get 24V.
__________________
JD - Full timer out west
Missy - 1998 MCI 102-EL3 - 1.7kW Solar - 10kWh Lithium
My Adventures & Build
JDOnTheGo is offline   Reply With Quote
Old 07-24-2017, 01:27 PM   #210
Bus Crazy
 
Brewerbob's Avatar
 
Join Date: Oct 2016
Location: Essex, MD
Posts: 2,464
Year: 1999
Chassis: Blue Bird TC RE 3904, Flat Nose, 40', 277" wh base
Engine: 8.3L Cummins ISC 260hp, AT643, 4.44 rear
Rated Cap: 84 pax or 1 RV; 33,000lbs
Quote:
Originally Posted by JDOnTheGo View Post
I think those are 12V alternators, aren't they? I'm not smart enough to know how one would combine them to get 24V.
In series, you add the voltage. The down side is that if either dies, so does the entire line. Think old xmas tree lights.

In parallel, you add current but NOT voltage.

So if you wan't 1.21 jiggawatts, you could add them in parallel and/or series. A jiggawatt is movie magic but Watts are Voltage * Current. With the alts that Chris mentioned you could do 4 at $800. Two pair in series.; the pairs then in parallel. It will double your voltage and double your current. But if you're running that many belt driven alternators the engine is going to get a work out.
Brewerbob is offline   Reply With Quote
Reply

Tags
conversion, lithium, mci, solar

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 01:24 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2018, vBulletin Solutions, Inc.