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Discussion Starter · #41 ·
A credit to you Sir, nothing like a job well done even if it seems to take for ever....:)
Appreciate it. I haven't posted in a while partly because I haven't been doing anything engine related work on the truck and partly because I haven't been doing a lot of work on the truck period. However I have got the bed and rear fenders installed. Still some details left at the rear of the truck such as the bumper and lights. Also need to install the fuel filler neck which will exit the left rear fender.

I have been working on collecting and organizing the parts to install the air conditioning system. The original Isuzu NPR Zexel AC compressor is at a shop getting overhauled (New gaskets/seals). Some will say that an old farm truck is not supposed to have air conditioning, but I am located in Arizona - It's hot here.

Also bought an instrument cluster on Craiglist and made a new panel to incorporate boost and EGT gauges. Started some the wiring. And oh yeah, a friend at work made me some keys out of hotwheels trucks.
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Discussion Starter · #43 ·
Just wanting to say that the project is still alive and well. Not a lot of engine related work going on right now. Waiting on parts for a couple of months. That seems to be the norm now. Sigh! The back end of the truck is complete. Working on the cab now and then I will finish out the engine compartment and finally get this thing on the road some day. Painted the top of the cab white. I did this because all of the body seams need top be re-sealed. Dug out all the old sealant and replaced with 870 B1/2. Then added some cab lights to the roof and made a third brake light mount.
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Got the transmission cover installed, clutch master cylinder installed,
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AC system installed in the cab and flooring put down.

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Still waiting for door and window rubber and also oddly enough still waiting for a boost gauge.

I also got the EGT probe installed in the exhaust manifold.

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Looking good. What are you using for CAD and flooring? It's shaped in there really well. Much sound deadening?

I've been pondering engine side sound insulation. My injector pump is one of the noisiest parts at idle.
 

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I see that you have side mounts on the engine and transmission. With that setup, when there is frame twist, like a truck with a load, twist loads are put on the engine/bell housing/transmission that they were not designed for. Some have broken these parts with 4 mounts like this. Most all factory drivetrains use three mounts, side of engine and one aft of transmission; or sides of clutch housing(SAE mounts) and one under front of engine.
Good luck, nice workmanship.

Ed in CO
 

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Discussion Starter · #46 ·
Looking good. What are you using for CAD and flooring? It's shaped in there really well. Much sound deadening?

I've been pondering engine side sound insulation. My injector pump is one of the noisiest parts at idle.
I use Shapr3D on the iPad and Solidworks or Freecad on the computer. (I also use Blender which is not really a CAD program)
For the flooring I started with sound deadening material followed by insulation and then the final floor covering. Here is the stuff I used. (please ignore the country of origin. I bought this stuff last year) 2 boxes of each and I have some left over. I have enough sound deadening to do the doors, but probably not enough insulation. Easier to install than I thought. The sound deadening was easier to handle in smaller pieces and I figured out that overlapping seams was just fine.

I obviously haven't had a chance to drive it on the road yet, but just tapping around on the metal surfaces I can tell a huge difference in noise reduction..
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Discussion Starter · #47 ·
I see that you have side mounts on the engine and transmission. With that setup, when there is frame twist, like a truck with a load, twist loads are put on the engine/bell housing/transmission that they were not designed for. Some have broken these parts with 4 mounts like this. Most all factory drivetrains use three mounts, side of engine and one aft of transmission; or sides of clutch housing(SAE mounts) and one under front of engine.
Good luck, nice workmanship.

Ed in CO
Well, I won't deny that the Isuzu NPR frame is much much stronger than my old 65 Chevy frame. But I am actually using the exact mounting points that Isuzu used for the engine and transmission. ( the transmission mounts are slightly aft of original location) In fact, I am using the very same Isuzu mounts themselves that came with the engine and transmission. Also I think it is too late to go back and re-engineer my installation. Your point is taken and this is a truck that has been in my wifes family for decades. We don't plan on loading it down or abusing it in any way. So hopefully there wont be any issues. The engne is mouinted directly to the front cross member, not the frame. Those old Chevy cross members are pretty substantial.
 
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