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GEV was great to work with. I'd seen the medium I wanted on their web site, I called them and talked to their salesman, Shawn, and then flew out to meet with them. I took it for a test drive, and then we discussed price and what I wanted. I wanted "refurbished", which included changing fluids...

I dug into the Carling circuit breakers a little, and with a thermal breaker operating temperature (the breaker, not the ambient), the adjustment factor at 40C is 1.18; at 50C, it's 1.33; and at 60C, it's 1.67. If the breaker was at 137F (58.3C), and your realistic maximum was 60 amps, the...

Circuit breakers are a mixed blessing -- convenience plus PITA. The first thing you need to avoid is a thermal circuit breaker - you want to use a "hydraulic/magnetic" type breaker. This type's performance is not affected by temperature. Unfortunately, most readily-available circuit breakers...

One ambulance manufacturer (Crestline) as adopted powder coating for their body panels. Probably a little overkill for our projects, though....

Does anyone know the dimensions of the Sienna seats? I particularly need the maximum width over the armrests. Thanks!

Regarding COTS - as I recall, back when the military wanted to look at off road heavy trucks, they asked all the US class 8 truck builders for quotes and time to build a prototype. Oshkosh won when they said the military mods and OD paint would take a month. By pure luck, the Army had spec'd a...

Regarding your cab heat-- I did a lot of digging before I figured out that the ambulance module was the governing factor for both cab heating and cooling. I found that once I turned on the console "heating-cooling" switch, and I set the module temperature (warmer than I wanted in the winter, and...

Take a look at SelectTech (www.fixmyambulance.com). They have a good selection, and a phone call might also help

The vents are 3" diameter aluminum, and equipped with screens: They don't make any kind of flow-operated vent. It sounds like you maybe want something like a clothes dryer / bathroom exhaust fan vent?

In order to carry propane on board, as per the requirements of the NFPA (National Fire Protection Association) for recreational vehicles, the selected compartment has to have ventilation from the top and the bottom. I'm planning to use the standard Perko marine vent for the upper vent, but I...

Lets face it -- ANY ambulance is gonna be smaller than we need when we're outfitting it (but larger than we want when we're parking it...). I had picked up an Isotemp 4.2 gallon marine water heater a few years ago for the buggy's water system. Retailing at nearly $1000, I got it for less than...

You probably also have a scanner antenna mount. It will be a little smaller than your VHF/UHF antenna mounts.

Looks great!

I think I'm going to install a pressure switch and gauge. The pressure switch will trigger a dash panel indicator light, so one way or another, I should be able to find out if I have a problem. After taking a close look at the old pump, I kinda wonder if it wasn't the original pump -- when I...

Not easy access, but probably about normal for a diesel. Probably also better than the same engine in a pickup. I'm going to order a set of fuel filters as on-board spares. I have some gasketed marine boxes that shoukd keep them clean and dry, and since I have them on-board, I shouldn't need...

That's another reason why I went with a Cummins pump versus a clone. Even both the Cummins and the clone were made in China, I figure Cummins might have tighter quality control. The pump that was removed looked like the Cummins we installed, and it had been installed a long time. A gauge or a...

EUREKA! SUCCESS! Last fall, just before winter landed with a vengeance, The Medic Master suddenly wouldn't start. I'm smart enough to know when to call for advice/help/assistance/rescue/prayers, so I called MNtal for advice/help/assistance/rescue/prayers. With the help of Google, a Cummins...

I bought my medium ambulance from GEV. I made the arrangements to buy it with one inspection trip, lined up insurance, then flew back to pick it up. Their salesman drove me to the area's license plate office, and I got a vehicle in transit paper tag in about 5 minutes. We screwed it on, and I...

Look up the calculations for adding an extension to a torque wrench - By my 1:00 AM math, it calculates to be a 23" extension - or look for a torque multiplier. Northern Tool has then fairly reasonably. You could also use the torque multiplier they sell for truck lug nuts - with the 58:1 ratio...

I'm guessing he probably runs 6011 for his root pass, and 7018 for the remaining passes.