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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]


Now it was time to extract the fuel tank from the FMC. Here is the cover for the inspection hole to access the fuel sender/pickup assembly. It is located under the driver side bed and was provided by FMC for coaches #700 and up.

This will be the position of the fuel assembly when it is ultimately installed in the FMC fuel tank.

Another top view, but this time the ring that will hold the fuel assembly has been put on it. There will be a 3/4" wide steel ring that will hold this assembly to the top of the FMC fuel tank.

Here is the side view. The bottom portion has springs inside it that press on the bottom of the two aluminum rods that hold the two halves together. This ensures that the fuel pickup portion is always on the bottom of the tank. The donor tank is 14" deep whereas the FMC tank is 24" so the rods, wire and fuel tubes will need to be extended 10". Note that the guage sending unit is attached to the bottom assembly. More on that later.


Top view of the fuel pickup/return/sending unit.

On the left is the fuel pickup and guage sending unit. It will slip down into the piece from the top of the old donor tank and then be locked into place by the retaining ring.

I used a jig saw to trim the rough cut fuel system adaptor. It is on the left. On the right is the ring that locks the fuel pickup assembly to the adaptor on the left. The edges of the adaptor will be smoothed on a sanding disc later.

Here it is flipped over. Note that it is two layers with the dark outside being the initial molding. After the attachment points are completed, the tank is then lined with the white nylon(?) material you see here.


Back to the fuel system. This is the top of the fuel tank that I removed with a jigsaw. It holds the fuel inlet/outlet/guage sender unit.

(4 Comments)
Here are the two fans. The new fan is from a rear engined Workhorse chassis that is powered by an 8.1 cu in GM gas engine that is used in coaches up to 22,000 lbs. The FMC has a gross weight of just under 15,000 lbs.

(3 Comments)
Here is the new fan laid on top of the old fan. The new one has about a 1/2 inch smaller diameter and six blades instead of nine. While there are fewer blades, they are deeper and have a greater pitch.

(2 Comments)
This shows the two pieces temporairly fitted together. The fan attaches to the inside of the clutch so these pieces will be permanently joined later.
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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