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Initially I needed to get the M to start and run again. It was sold as a
running Truck with a break leak. Well, when Darrell went to pick it up, it
would not start. They tried, but just ended up loading it on the trailer
with a tractor. That's how it sat when I picked it up to bring it to my Shop
in IL. I decided that since it had relatively new batteries that Darrell had
charged, and still it would not start with a little either, I'd check the
points. But before that I decided to see if any power was getting to the
distributor. Well, it wasn't. So I jumper’ed power from the battery lead on
the started, squirted in some either, and she fired right up and ran nicely.
Next I pulled the cap off of the distributor to check the points. Found a
Rotor with a broken center contact, and a cracked side. It's a wonder it
would start and run with it like this. I also found that the points are
indeed in need of replacing. 2014-07-07 (1.5) |






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Today started out as break day. I picked up the needed parts too
finish the break upgrade on my YJ, and started looking to see what the
issues were with the M. Found the leak that caused them to have to
re-fill it often, was a leaky master cylinder. Don't see any leaks
from any wheels, but will know more when I pull the drums. Pulled the
batter box cover out of my parts pile from my M, and installed it on
Darrell's since his was missing. His M also has two 12V batter tenders
wired in so all you do is connect an extension cord. While grabbing
the batter box cover, I found my old M's military distributor, opened
it up and found a perfectly good rotor and cap to use to replace the bad one
in his M37. Pulled his points plate out to install the new points I
picked up, and decided my plate looked better, no rust and a better
coil wire, so I installed the new points on it and installed it in the M and
gaped it as required. Swapped in my Cam, installed my Rotor and closed
up the distributor. 2014-07-08 (2.5) |









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Installed the new civilian plug wires to complete the tune up. I
decided to by-pass the entire M's wiring system so as to not take any
chances in any bad wires causing a fire or other issue. So I pulled
the the main body feed wire off the of the starter bettery terminal (Wire
#4), and ran a wire from the terminal to the ignition switch, and another
wire from the output side of the switch to the coil. So the only thing
the switch powers is the coil. I also disconnected the Fire Department
12 volt leads from the battery. With the switch on, I hit the foot
starter, and she fired right up and ran nice. The dry roted fan belt
decided to start letting go though. I then decided to pull the brake
drums and check the wheel cylinders and shoes. Well, the first one I
pulled, Right Rear, the one draging looked good until I peaked inside the
wheel cylinder boot. well mud and rust is present, so based on that
and the condition of the other three, it will need all new wheel cylinders
and fresh shoes. 2014-07-09 (4) |













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Cleaned up the drums, and break pads. Re-installed the drums, and
adjsuted a couple of the brakes. Re-installed the wheels, and bleed
the brakes. So what next? I went for a test drive! Made
three laps around the subdivision, and it runs good, and stops well.
So I cleaned some of the oil/grease from the underside, and washed out the
bed. I also took a few pictures with it along side my M37.
2014-07-10 (3) |



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Well, I've been working on a few other things as well as some wiring
planning and parts selection for the M. I've also removed all the
lights, gauges and old wiring harness from the M. The only wires left
are the Battery Cables, and the temporary Ignition wire I install to sstart
and drive the M with. 2014-07-29 (6) |


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After some more wiring diagram work, it was time to start cutting wires.
I both measured and laid out the cab harness to be sure I cut the wires to
the correct lengths. Waiting on the last of the sire to arrive, but
have a lot of it cut to length and ready for assembly. 2014-08-04
(4) |



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After receiving the rest of the wire order and getting a proper wattage
soldering gun, I'm now making the cab/engine harness. 2014-08-08
(6) |



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Finished a few more splices in the Cab/Engine Harness, as well as wrapped
the wires where I could before test fitting in the M. Test fit went
very well, so much so I don't expect to be pulling it back out. No
wire too short, and fits pretty darn good. 2014-08-09 (4) |
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Finished the splices and wrapping the rear harness. I than fed it
through the truck, and every thing fits good. Now to start
terminating wires. 2014-08-09 (2) |




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I've installed the batter Batter Disconnect. It's on the ground side
of the batteries so that it kills both the 24V and 12V feeds. I also
installed and connected a new dimmer switch. I pulled out the siren in
order to get a new motor for it and blacked out the inner grill area.
Next came the cleaning and painting of the Douglas Connectors metal shells.
I then connected and terminated all the under hood wires except for the horn
button connection (need the new horn switch). 2014-08-19 (6) |





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Spend the past couple of days completing the back of the dash wiring and
most of the under dash wiring. This included installing and connecting
the Turn Signal Switch. I also wired in the Emergency Light Switch,
and Siren Switch and Relay. Still need to clean and re-assemble the
Siren and mount and run it's wire from the relay. I've also got to
complete the wiring for the Power Point and the ignition switch. I've
also gotten the front Marker and Black Light Housing and brackets, and have
them cleaned and painted. 2014-08-24 (8) |


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I finished painting the front lights and go them installed and wired into
the new harness. I discovered an error in the Signal-Stat 900 wiring
schematic for the Flasher assembly on the pin connections. I had to
swap a couple of wires to get them operational. I also discovered that
I should have feed the turn signals with power from the service side of the
light switch rather than the power side. The Turn Signals work when in
black-out mode. I also worked on the Emergency Light brackets and
started cleaning and painting the siren parts and replacement door handle.
2014-08-25 (4) |



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Installed the 12 Volt Power Point and fabricated and painted the key switch
bracket. I also finished painting and assembling the Siren and
installed the new drivers Door handle. Finished the Emergency Light
brackets and installed and connected them. They work and look pretty
good. 2014-08-26 (3) |








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Installed and connected the Siren. Unfortunately I think the
replacement motor only spins half as fast as needed as the siren isn't as
loud as it should be. A quick test at 24V was close but not sure how
long the motor would survive at that voltage. Fabricated the missing
parts from the horn button repair kit and got it installed and the horn
works well. Wrapped the main starter to regulator to circuit breaker
wires in tape while I wait for the replacement, and connected it and the
ignition switch. Connected and installed the gauges. They all
work, and based on the voltage gauge, it looks like the generator is working
as well. The oil pressure gauge barely moves when the engine is
running, so it's either got low oil pressure or a bad sender/gauge.
2014-08-27 (3) |







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Started the brakes job on Darrell's M. Unpacked the wheel cylinders I
bought from two different suppliers. Discovered they are both from the
same manufacture. Cleaned them and the new (mane in the USA) master
cylinder and gave them a coat of paint. Pulled the left side apart and
removed the old cylinder and shoes and cleaned everything up.
Installed the new parts, put the drum on, and adjusted them. Then gave
it a fresh coat of paint. Next came the right side, plan was to
repeat. Everything was good until I decided to tighten up the loose
sloppy hub. Discovered it had been subjected to water and had
washed the grease out of the bearings and left a mess. So I've ordered
a wheel bearing kit and inner seal to install. Next comes the rear.
2014-09-02 (5) |




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Worked on the rear brakes today, got them done, and threw a little paint on
the wheels since there was so much bare metal. 2014-09-03 (5) |



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Well after spending the morning chasing down and installing a new igniter in
our hot water heater, I got back to the brake job. Installed the rear
wheels,. and upon arrival of the new bearings I finished installing the
right front hub and wheel. I then fine tune adjusted the brake pads
before moving on to replacing the brake hoses and Master Cylinder.
Next comes bleeding the brakes, installing the rear lights that also arrived
and water pump. 2014-09-05 (4) |




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Bleed, checked and re-adjusted the brakes. They seem to be in good
shape now, and no leeks detected. I also straightened the Left Rear
Fender, then gave it a coat of paint, and painted the new Tail Lights.
Next came the installation of the tail Lights and and finishing the dash
wiring. All the wiring except the back ordered 2 wire generator body
harness is complete. Next comes a test drive to verify the brakes, and
then replacing the leaking water pump, and changing fluids. 2014-09-07
(6) |




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Well, while I had his M out of the shop to test the brake job, I decided to
clean up the mess I made. Took 3 hours of being on my hands and knees,
but it's cleaner. The brakes worked good, I can lock-up and slide the
rears, and the fronts grip the pavement and leave tread marks. Will
look at re-adjusting the fronts to help improve the performance. After
pulling it back in and parking it over some cardboard, I proceeded to change
oils. Front and Rear Differentials and Transfercase all were chocolate
brown fluid in color, but no water or chunks or sludge. The
transmission, well it's fluid looked better, but found a few small pieces of
metal. No water or sludge though. The engine oil was light
weight in nature, but no water or chunks. There is some sludge in the
bottom of the oil pan, but no current plans to drop the pan and clean it
out. I checked the ohm readings on the oil sender and it seems like it
might be good, but I'll still add a mechanical gauge to the engine
compartment to be sure. Next will come the dome light, and water pump
replacement, then it should be done. 2014-09-09 (2) |



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Picked up and installed the mechanical oil pressure gauge. I cleaned
up the sending unit before re-installing it, and checked connections of the
wires at the gauge, and when I fired her up I had 50 psi on the mechanical,
and the electrical gauge started working and showed 60 psi (cold start).
I also installed a dome light, and finished greasing the drive line and
suspension. 2014-09-10 (2) |

















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Well, Darrell's M37 Brush Fire Truck's Initial Repairs are done. I
removed the water pump and thermostat housing to repair the leak and install
a new thermostat, only to find there wasn't a thermostat, and that the
existing water pump was not very old. The back side of the pump wasn't
rusted and you could see the ink stamp on it. The leak appeared to be
from the gasket between the water pump and block. With the new pump
and a thermostat installed the engine warmed up to operating temperature now
with no leaks. 2014-09-11 (3) |




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Thought I'd share the small pile of wire left over from the re-wire.
Also a better picture of the Dome Light. Darrell asked that I weld the
hinge damage area, and throw some paint on the bear spots of the tail gate,
so a little more work before it goes home. 2014-09-12 (2) |

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All loaded up and ready to be delivered. |