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 on: October 07, 2015, 09:04:55 AM 
Started by RJ - Last post by bevans6
I did all new hoses while I was at it.  Which broke a fitting off the inversion valve so I did a new inversion valve too.  These little jobs seem to multiply...  BTW if your chamber is stuck in park and you can't release it, you can undo the two mounting nuts on the studs and there is enough room for it to move forward enough to release the brakes.


 on: October 07, 2015, 08:44:15 AM 
Started by belfert - Last post by blue_goose
The program in my B500 gives economy as normal and more aggressive in mode.  The only setting in the ecm for cruise is where it drops out and max speed that you can set. 
The most important thing you can look at for power is your boost pressure.  When you push on the throttle you should see a change in your boost. 

 on: October 07, 2015, 08:35:05 AM 
Started by RJ - Last post by RJ
Thanks, all, for your suggestions.

After spending all morning on the phone yesterday, was able to snag a couple of new DD3 chambers from REI at $525 each.

MCI had new ones for $1110, or rebuilts for $936.

Decided to go with REI's since I don't think the ones I'll be changing out will be accepted as cores, due to corrosion issues.

Absolutely have to move coach today, as the property where the barn is located that I store the bus at has been sold, and escrow closes on Friday.  So have called Coach-Net to move it to Terminal Air Brake, who will install the new DD3s, plus some other undercarriage work for me.

What the hey, it's only money. . .


 on: October 07, 2015, 08:25:17 AM 
Started by moosemanusa - Last post by moosemanusa
Hi everyone,

Have an issue that's been bugging me recently, I'm researched it and nothing really gives me the answer, so looking for real world knowledge.

We have a Carrier AC System (RM-40 is the exact model) its an R22 system with the correct 45PSIG pressure.

However when cooling and sometimes (yes only sometimes) in  re-circ mode the pump will surge..

I'll feel the surge through the bus and also my ears pick up the change in engine notes, its like the pump is bogging down every rotation or few.

The system has oil and cools very very well.

Any ideas? Am I just being to paranoid (wouldn't be the first time) its just the 05G compressors are super expensive.

I've though about adding more oil to the system as I have no idea whats currently in it but still unsure if thats the issue..


 on: October 07, 2015, 08:20:47 AM 
Started by opus - Last post by luvrbus
I bet the blower and after cooler are a mess with all that turbo damage

 on: October 07, 2015, 07:07:41 AM 
Started by belfert - Last post by belfert
The change to 6 speed wouldn't make any change in the cruse speed.  You should have two modes in the transmission.  Try the mode and see if it down shifts faster. 

My understanding is the default on a typical B500 is to use normal mode when the mode light is not lit.  When the mode light is lit the transmission will be in economy mode.  I understand this can be reversed in the WTEC so economy is the default, but I have no idea how to check if this is reversed.  I did try hitting the mode switch at one point, but it wasn't clear if it helped.

Even in 6th gear shouldn't pushing down the throttle to the floor increase engine power?  If cruise is enabled sometimes the throttle just seems dead and the engine doesn't increase power or barely increases power.  It isn't all the time.  I use cruise most of the time, but sometimes I want to speed up and should be able to do so.  Sometimes cruise will allow the speed to fall dramatically instead of increasing engine power.  I think Clifford is onto something about needing some tweaks made to DDEC settings for cruise.

 on: October 07, 2015, 06:58:47 AM 
Started by Sharkbait - Last post by TomC
I have Jakes on my 8V-71. Being an old truck driver, it was among the first things installed before I even brought the bus home. Properly adjusted (Don Fairchild did the adjusting-don't remember the specs) they work very well. With me pulling my car at 34,750lbs (way more than a 4106) going north on I-5 Grapevine the big 5 mile 6% I had to switch from one head to two heads to keep from slowing down too much. Also, if you ever explore in the hills, having the Jakes is a real brake saver. I kept my V730 down in 1st and got torque converter lockup above 20mph. With your 4spd the jake will just about put you through the windshield in 1st gear-so a on-off-on or off-on-on will be good with low just one head and high both heads. Good Luck, TomC

 on: October 07, 2015, 06:13:04 AM 
Started by belfert - Last post by blue_goose
The change to 6 speed wouldn't make any change in the cruse speed.  You should have two modes in the transmission.  Try the mode and see if it down shifts faster. 

 on: October 07, 2015, 06:09:10 AM 
Started by Darkspeed - Last post by bigred
Looks to be the same stuff that they insulate houses with or that you can by in the spray cans.The only spray cans I have seen are crack fillers But I would think that urethane foam would be the same regardless.Your best bet would probably be to contact a insulation company and have them come out and spray it for you.Don't know what kind of expense you would incur if you started trying to buy the equipment to do it yourself!

 on: October 07, 2015, 06:02:25 AM 
Started by RJ - Last post by blue_goose
Frankie Goodson in NC.

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