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Posted 03 April 2010 - 04:00 PM
Wife say we can take truck to shows but need A/C.
How much would it cost?
Posted 03 April 2010 - 04:26 PM
Posted 03 April 2010 - 05:42 PM
As far as mounting the compressor, there were lots of R model & DM's with E6 motors equipped with A/C, so you could try and find the compressor brackets from one of those, though the brackets would need to be modified slightly because the B61 uses a shorter water pump, therefore the belts are closer to the engine than on a DM or R.
For an evaporator you could adapt a complete HVAC unit from an R or DM, or possibly find an aftermarket under dash unit that could be adapted.
Other than these options, you could search for an old Kysor "rooftop" unit, which would give your truck a "period correct" appearance.
Posted 03 April 2010 - 06:23 PM
Posted 03 April 2010 - 07:48 PM
Posted 04 April 2010 - 08:07 PM
Red dot I was working on the B when it was in production at the dealer here. We installed the roof mount as a kit and there was two braces that had to be welded in under the roof skin to suport the weight. There was a funky braket and idler mounted on the front timing gear cover of the front cover and it used a belt from the crank. If i remember it was not a good ideal. On my B i found a thin light metal pully that was same diameter as the water pump pulley and brased it to the water pump pulley and bingo. Used a R model compressor mount and a york compressor but have seen kits that had a braket that used a rotary compressor. I think that is better. I used a red dot condenssor and mounted it with its fan on top of the box that i have mounted using it as a camper.
Hi, I am fitting air con to an r model, am using the vintage air gen 2 mini system, its a nice kit and small and fits behind the dash.
Posted 05 April 2010 - 10:13 AM
There is a totally restored B-53 that is going to the ATHS auction in California this spring.
The builder, from Alabama, had the truck in the Huntsville show last year. The truck really caught my eye.
That truck has the neatest installation of A/C that I have seen on a B model Mack.
The condenser unit is mounted under a set of steps up to the frame at the passenger side rear of the cab.
The fan is fully shrouded in, and the whole unit looks like it belongs there. The rest of the A/C equipment is between the seats on the floor at the rear wall of the cab in a custom fabricated box/console. Very neat install.
I believe that it is a Red Dot system, but almost any of the hot rod systems should work.
The real key for air conditioning to be effective in the B cab is the insulation. Particularly the firewall insulation. The cab is a very efficient oven, and overcoming the heat build-up is a real challenge. Just sealing up the holes and drafts from the engine compartment is a huge help.
Again, this B-53 builder has used a neat idea - he used heat resistant expanding foam in aerosals on the underside of the cab floor. The area above the inner rockers is completely filled with foam, yet is not visible at all from the outside of the truck (Unless you stand on your head and look up under the truck). The foam is available readily at places like Home Depot. The interior insulation is a mix of thermal and noise reducing sheet goods attached directly to the sheet metal and finished with either rubber floor mat or carpet.
My personal feeling is that if you have a very well insulated cab, the need for air conditioning is minimized, except, perhaps, in the warm climates.
Hope this helps.
Paul Van Scott
Posted 05 April 2010 - 04:50 PM
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