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The Dieselfication of Coach 1046
Author: BigRabbitMan (Show all albums)

This album is dedicated to following the process of Coach #1046 being converted from a 1976 Chrysler 440-I with a 4spd Allison AT540 transmission to a 2006 GMC Duramax LBZ turbo diesel with a 6spd Allison 1000 double overdrive transmission. There is a companion discussion thread in the Mechanic's Corner section of the Forum area of this site.
Show Newest Photos First | Show Oldest Photos First379 Photos - Page : [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27] [28] [29] [30] [31] [32]


With the engine out, now the cleaning up of the coach firewall and other systems starts. This will be tedious and will take some time as we are going to reline the firewall for further sound suppression and general cleanup. Here you see what I removed from beside where the transmission sits. This is the Thermosan which slowly pumped the contents of the black and grey tanks into the exhaust system where it was "burned up" and exited as a grey powder. They were problematic and most have been deactivated years ago as mine was.

Here is a nice collection of wiring harness that went from the right side to the left side of the engine compartment plus some other components that were and will no longer be used.

Eric is looking at the area that the transmission will fit into. His assistant, Jake, is helping.

In an earlier picture I showed the H2 Hummer air filter that I have been running for a number of years. It was removed from the top of the engine compartment where it fits nicely out of the way. The H2 Hummer and the GMC both use the same filter element type. We will need to verify filter cubic inches to determine if the H2 filter is large enough or not.


The fire wall has now been cleaned up. This is looking to the left. The box for the 120 volt service and transfer switch and the generator will stay in place. The generator will later be converted to operate on propane.

Looking straight ahead.

And the right side. The AC hoses are temporarily left in place to keep moisture out of the system. Everything else is GONE! Nice clean engine compartment.

Almost everything is out. Cleaning up some wiring and then relining the firewall will start.


Here is the pair of Perma Cool coolers that have been removed. One was for the transmission and the other for the engine oil. They are the tube type with fins and were located under the propane tank behind the mud flap. I do not think they were very effective. The transmission cooler will be replaced by a stacked plate cooler in a different location with better air flow.

Here is the TURNING POINT! While a few more things are still being removed, here is the first new thing being installed. I have started the installation of the FatMat sound suppression material.

The FatMat will be installed on all of the surfaces that adjoin the interior of the coach which is everything except a section on the lower right and lower left. This will be covered with 1/4" of small cell foam board and then that will all be covered with a new 1/8" lining of sheet aluminum. There should be a major reduction in the engine and fan sound levels and a reduction in heat soak of the interior when stopping after a day's drive.

The FatMat installation is now complete. The uncovered sections on the lower right and left will not be covered as they do not lead to the interior. The propane tank is in front of the section on the right and the gas tank the section on the left.
Show Newest Photos First | Show Oldest Photos First379 Photos - Page : [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27] [28] [29] [30] [31] [32]

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