2000 HMMWV M1123 Project

[mow***com]

Small update... Although, my M1123 fuel system isn't perfect, I've started to think that my fueling problem comes from the dual lever brake switch in my truck.
I actually tested my lights against a wall and figured out that my brake lights come on way too late.
This is either from a contact problem, or out of adjustment problem.

Looking at it, I decided it could handle some slight adjustments.
For example, the mounting set up doesn't look very robust. A few hard hammers on the brake and I truly feel like it might have some give on that switch mount set up.
That being said, I decided to shim the front section and use my ol trusty mallet, with a few well placed whacks to see if I could place it further from the firewall.
Definite success (I dont feel like the torque converter is staying locked in gear, while at a traffic light anymore)... But, I still feel like this switch is living on borrowed time. Plus, I still don't like the mount set up, or the rod push clip.

Got all the windows in, finally. Sadly, I dropped the rear window through and onto the bed, trying to get it sealed. So, I have a few scratches that will need attention. But, it isn't too big of a deal. The truck is finally warm.
Plus, I found some 2.5 hvac style tubing at Oreilly. I will use some exhaust wrap and use it for my engine section heater crossover tubing. Certainly did it for less than $65+, so every bit helps.

That is about it for now. Just small hose leaks that need attention, mostly because I tighten things fairly gently, without listed torque specs.
Soon enough, I'll report the 1k update and do some small inspections. Thanks again, everyone.

 

[mow***com]

Just another quick update...

The truck has crossed over the 45,000 mile mark and now has 1100 miles under my driving.
The last days have been going over bolts and making sure things are still snug.
The transmission feels like it is shifting pretty well, the engine has good oil pressure and the cooling system seems to be going through the cycles.
The injection pump is starting to feel better. This is hard to say and hard to prove. But, I still remember the first time I drove it, solid black plumes everywhere.
I've been double dosing my additives in the tank and am just starting to back off and single dose. The truck holds idle better than it has and holds load better than it ever has. The brake switch still apparently seems to be working as it should. It stays running at a stoplight and doesn't feel like the TC is locked on.

I've started using the radio tray for modular type bolt on accessories. Storage, cup holder, soon to be cell phone holder, etc. Since, I don't plan to use any comms, this will work until I can decide for a custom dog house, or stereo add in.
I just got some fold down cup holders at Scheels and quickly cut some back plates. It is fairly thin gauge aluminum. But, it holds drinks just fine.
For some reason, I kind of like using wing nuts for quick ideas(Plus, the cup holders are drilled to mount in a couple different places on the tray.

On another note... I never had a windshield wiper switch for my truck. I had a knob, but no switch.
So, while hunting... I decided to grab a tested/functioning motor that came with a switch.
After installing the switch, nada (nuffin). Well knowing that the press pin grommet strips are a cause for failure, I started making a plan to remove the hardtop, to make my own harness, to bypass the pins.
However, since I bought a replacement tested motor. It made sense to pop it in and see if the motor moved.
One reason that I believed it would work is because earlier, I saw a small dip on my alternator gauge, making me think something was drawing.
That being said, I wired up the replacement motor and voilà. So, after a little snooping around, I now have a working wiper system.
If I could just get the sprayer motor to actually work now.

So, things have been feeling alright. But, I am scared to get complacent.
Often checks get me to each next destination and I am thankful for the experience.
Eventually, I'd like to get an A2 rear bumper, with a spare tire carrier. I'll be patient and just enjoy the time until it happens.
Right now, the truck drives about 50/50 highway and street driving. On the freeway, I am around 62-70mph and the truck feels pretty good.
In the spring, the steering will need attention, I can just feel it.
Until then, I just keep up with keeping up, on the these updates.

 

[Mogman]

Just another quick update...

The truck has crossed over the 45,000 mile mark and now has 1100 miles under my driving.
The last days have been going over bolts and making sure things are still snug.
The transmission feels like it is shifting pretty well, the engine has good oil pressure and the cooling system seems to be going through the cycles.
The injection pump is starting to feel better. This is hard to say and hard to prove. But, I still remember the first time I drove it, solid black plumes everywhere.
I've been double dosing my additives in the tank and am just starting to back off and single dose. The truck holds idle better than it has and holds load better than it ever has. The brake switch still apparently seems to be working as it should. It stays running at a stoplight and doesn't feel like the TC is locked on.

I've started using the radio tray for modular type bolt on accessories. Storage, cup holder, soon to be cell phone holder, etc. Since, I don't plan to use any comms, this will work until I can decide for a custom dog house, or stereo add in.
I just got some fold down cup holders at Scheels and quickly cut some back plates. It is fairly thin gauge aluminum. But, it holds drinks just fine.
For some reason, I kind of like using wing nuts for quick ideas(Plus, the cup holders are drilled to mount in a couple different places on the tray.

On another note... I never had a windshield wiper switch for my truck. I had a knob, but no switch.
So, while hunting... I decided to grab a tested/functioning motor that came with a switch.
After installing the switch, nada (nuffin). Well knowing that the press pin grommet strips are a cause for failure, I started making a plan to remove the hardtop, to make my own harness, to bypass the pins.
However, since I bought a replacement tested motor. It made sense to pop it in and see if the motor moved.
One reason that I believed it would work is because earlier, I saw a small dip on my alternator gauge, making me think something was drawing.
That being said, I wired up the replacement motor and voilà. So, after a little snooping around, I now have a working wiper system.
If I could just get the sprayer motor to actually work now.

So, things have been feeling alright. But, I am scared to get complacent.
Often checks get me to each next destination and I am thankful for the experience.
Eventually, I'd like to get an A2 rear bumper, with a spare tire carrier. I'll be patient and just enjoy the time until it happens.
Right now, the truck drives about 50/50 highway and street driving. On the freeway, I am around 62-70mph and the truck feels pretty good.
In the spring, the steering will need attention, I can just feel it.
Until then, I just keep up with keeping up, on the these updates.

I am glade things are going your way! but to be clear the stop switch was not likely the issue causing the TC to lock up, unless the wiring is really fouled up.

 

[mow***com]

I am glade things are going your way! but to be clear the stop switch was not likely the issue causing the TC to lock up, unless the wiring is really fouled up.

I can't possibly think of anything else, other than the TPS, or something in the injection pump that might have an effect while at a stoplight.
The only other tiny wrinkle that I might notice is that the transmission on very rare occasion feels like it shifts at a higher rpm than most times(usually in the morning)
I did clean and add dielectric grease to the TPS connector recently.

The truck is driven everyday currently. So, I am trying to keep my ear to the ground with the M1123. Much appreciated, Mogman.

 

[Mogman]

I can't possibly think of anything else, other than the TPS, or something in the injection pump that might have an effect while at a stoplight.
The only other tiny wrinkle that I might notice is that the transmission on very rare occasion feels like it shifts at a higher rpm than most times(usually in the morning)
I did clean and add dielectric grease to the TPS connector recently.

The truck is driven everyday currently. So, I am trying to keep my ear to the ground with the M1123. Much appreciated, Mogman.

The stop light switch nor the TPS actually control the TC lock, the stop light switch can take the trans out of lock but the TCM controls the lockup