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09-19-2015, 05:10 PM
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#1
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Mini-Skoolie
Join Date: Aug 2015
Posts: 25
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Mystery metal tank under bus
We have a 75 GMC Capenter Cadet. It has a strange tank in the rear.
Stamped on the tank:
Midland
3500 cubic inches
It looks like a small metal gastank with only one line heading up to the engine compartment.
I am thinking that it must be a vacuum canister? If that is the case why was it mounted so far back bedind the axle.
Any advice is appreciated. Thanks.
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09-19-2015, 05:39 PM
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#2
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Bus Nut
Join Date: Jun 2013
Posts: 252
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Where does the line into the engine compartment terminate? That might be the clue that solves this mystery. If I were to take a guess though it sounds like a homemade auxiliary fuel tank.
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09-19-2015, 06:07 PM
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#3
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Bus Geek
Join Date: Mar 2011
Location: Houston, Texas
Posts: 8,462
Year: 1946
Coachwork: Chevrolet/Wayne
Chassis: 1- 1/2 ton
Engine: Cummins 4BT
Rated Cap: 15
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Do you have air brakes? Is it a diesel or gas?
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09-19-2015, 10:14 PM
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#4
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Bus Geek
Join Date: Aug 2011
Location: Stony Plain Alberta Canada
Posts: 2,937
Year: 1992
Coachwork: Bluebird
Chassis: TC2000 FE
Engine: 190hp 5.9 Cummins
Rated Cap: 72
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We need pics.
Nat
__________________
"Don't argue with stupid people. They will just drag you down to their level, and beat you up with experience."
Patently waiting for the apocalypses to level the playing field in this physiological game of life commonly known as Civilization
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09-20-2015, 12:31 AM
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#5
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Bus Nut
Join Date: Nov 2013
Location: Gainesville. Georgia
Posts: 544
Year: 1992
Coachwork: bluebird
Rated Cap: 72
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Could be where they stuffed Jimmy Hoffa.
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09-20-2015, 07:09 PM
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#6
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Moderator
Join Date: Feb 2007
Location: NUNYA
Posts: 4,236
Year: 1995
Coachwork: Thomas
Chassis: 3800
Engine: DT408, AT545
Rated Cap: 23 500 gvw
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Quote:
Originally Posted by nat_ster
We need pics.
Nat
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That would be too easy.
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09-21-2015, 02:18 AM
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#7
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Mini-Skoolie
Join Date: Aug 2015
Posts: 25
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It has a 2 chamber master cylinder and a hydro boost system. No air brakes. Ill try to get a pic. It is clearly empty/dry when I knock on the bottom of tank.
Is there a simple way to post pics without an outside image host? Thanks.
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09-21-2015, 09:52 AM
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#8
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Bus Crazy
Join Date: May 2010
Location: Montana
Posts: 1,626
Year: 1995
Coachwork: Blue Bird
Chassis: All-American R/E
Engine: 8.3 Cummins
Rated Cap: 72
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Quote:
Originally Posted by 75GMCCadet26
Is there a simple way to post pics without an outside image host? Thanks.
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No. Use Imgur...Google, etc.
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09-21-2015, 10:54 AM
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#9
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Bus Geek
Join Date: Mar 2011
Location: Houston, Texas
Posts: 8,462
Year: 1946
Coachwork: Chevrolet/Wayne
Chassis: 1- 1/2 ton
Engine: Cummins 4BT
Rated Cap: 15
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Ya, tracking down the lines is the place to start.
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09-29-2015, 12:43 AM
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#10
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Mini-Skoolie
Join Date: Aug 2015
Posts: 25
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We will track it down when we have time, I just thought someone might know off hand. Ill keep you posted. My bet is that its a vacuum accumulator. Ill try to look in the AM.
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09-29-2015, 10:03 AM
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#11
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Bus Geek
Join Date: Mar 2011
Location: Houston, Texas
Posts: 8,462
Year: 1946
Coachwork: Chevrolet/Wayne
Chassis: 1- 1/2 ton
Engine: Cummins 4BT
Rated Cap: 15
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Back to the gas or diesel engine question. Diesel engines don't produce vacuum. So unless there is a separate pump there will be no tank. Gas engines typically pull vacuum and larger vehicles will have a vac tank.
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09-29-2015, 10:16 AM
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#12
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Mini-Skoolie
Join Date: Aug 2015
Posts: 25
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Sorry I must have left out that it is a gas engine.
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09-29-2015, 10:40 AM
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#13
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Bus Geek
Join Date: Mar 2011
Location: Houston, Texas
Posts: 8,462
Year: 1946
Coachwork: Chevrolet/Wayne
Chassis: 1- 1/2 ton
Engine: Cummins 4BT
Rated Cap: 15
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Then very likely a vacuum, but the lines still need to be followed to make sure.
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