Alcohol Evaporator Dryer Comparison

[builder77]

I was not intending to purchase a cross section of all the alcohol evaporator dryers out there, but thanks to the way ebay works sometimes I did. I ended up with two versions of Bendix dryers, and one Midland. The smallest of the Bendix units is the same type that appears to have been used in one of the dryer kits for the deuce. The directions are for the larger white plastic Bendix unit. I can take a larger pic of the directions if it would be useful to post in the articles if needed as this is a bit hard to read.

I hope some of you guys with installed units can post some pics.

 

[JCease]

What do they use the soup for?? Just kidding.....couldn't resist!!

 

[m-35tom]

why not use a pressure swing dryer. works better and is automatic.

 

[builder77]

We can debate adding a high dollar modern dryer in another thread. This thread is to show the various types of evaporative dryers, and how they mount in the deuce as the military kit was designed to do. These type systems have been around for years, and apparently work just fine.

 

[emmado22]

This one seems to be a factory installed one in the 1987/88/89 USAF M35A2C's. It's on the firewall under the heater duct. I cant find any mention of it in TM's.

 

[steelsoldiers]

Good posts Ethan and Mark. It's nice to have a visual for all of the possible dryer systems that we may encounter.

It sure is a lot more simple and inexpensive that the Haldex Pure Air Plus desiccant dryer system on my 923A2: http://shortlinks.net/rub882 Of course they went to that fancy system to protect the CTIS and ABS. It worked like a champ because I never got any water or even mist out of the tank drains. It even had an electric heating element around the blow-off valve. You do not want to be next to that thing when it blows off, trust me!! I had my ear about a foot away from it once when greasing the truck with it idling. I know, not safe, but dang it scared the stuff outa me!

My 404 Unimog had one on the right rear frame-rail behind the axle. It was a simple steel canister with a screw on lid. The lid had a spring loaded plunger so you could give it an extra shot. Those crafty Germans!

 

[cranetruck]

Any "automatic" air dryer will benefit from an alcohol evaporator since the accumulated water would freeze if not heated (=24vdc drain).
If I only had the choice of one device, it would be the alcohol evaporator/vaporizer.
The small "Bendix" unit in Ethan's picture is shown in many TM's and is factory installed in the m656/xm757 8x8 trucks with its multiple air systems. Just requires methanol from time to time and the normal draining of the air tanks..... Do a search here for past postings, including the cranetruck installation.