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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]

We have moved back outside. The engine and tranny have been rolled back out. Cleaned up the area under the coach. Larry E. is cogitating about something!

Here Larry is putting the transmission mounting bracket onto the rear of the Allison transmission. Note that it has the driveline brake that was transfered from my previous Allison AT540 transmission.

Here is the installed bracket. There will have to be a cross member created to go under the rear of the transmission which will support this bracket.

Just in case I didn't post it earlier, here is the data plate for the transmission.

Here Larry is attaching one of the motor mount brackets. For this engine, the motor mount attaches to the engine, a bracket attaches to the mount, and then the bracket attaches to another bracket that is welded to the frame. That is how GM did it and I will follow that same methology.

Larry is holding the chain that will be used to slightly lift the front of the engine with the cherry picker/engine hoist when we need to move it. Here I want you to focus on the stand that is holding the front of the engine. It has a top and bottom half circle that clamps onto the crankshaft pulley. Then there are two legs that support it that are attached to a wide base for stability. The foot pads on either end help prevent forward/aft motion. The transmission is on a transmission jack.

Note that the top half of the legs slide into the bottom half.

Now you see why! A small jack is placed between the legs and used to raise the engine up.

There are holes in the legs such that at a certan point, pins can be inserted as you see here and .....

..... the jack removed. There is a second set of holes in the upper legs so that it can be pinned at a higher location if needed. The outrigger feet can also be screwed higher or lower to help with fine placement of the engine.

I needed to design this tool/stand as when the engine is moved into the coach, there isn't any room for the engine hoist to suspend the engine from above. The engine needs to be stable when initially positioned so that engine/transmision mount attachment points can be designed.

The transmission has been tightly strapped to the transmission jack so that we can move the engine around and there is no risk of the transmission slipping off of the jack. It has swiveling wheels so it will just follow the transmission.
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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