T-Mack1

A Huskie Chips bag that I believe belonged to my grandfather Carroll Mack. It is now in the possession of the Mack Historical Museum, along with a beat up one that I had used in my garage to hold stuff.

Our "1211" is an aerial and at lease one of the other Boston chassis' were too, so I believe the list is just B85F's and not limited to one type of use. A possibility is they may have been delayed or the orders canceled.

Thanks. I wonder where/when 1213 & 1217 were made..

There was a note in the Boston order paperwork for for fast shipment and one urgent.

minor correction. 1209, 1210 & 1211 delivery date should be "56" not "57". I did say it was hard to read..... LOL

Will do. I have been talking with my buddy who is most likely a genius that never went to college. Machinist, Top 50 GM mechanic at one time, and Electronic GURU. I had him look at all the options including using the more modern Leece Neville rectifiers (one Pos one Neg. ). His opinion, since the selenium rectifier has significant resistance forward, one of those 3-phase rectifier modules would be a big improvement. He said get one that is rate higher than the alternator output. 120A at a minimum, for our 100A ALT. Also said get the lowest voltage one you can get. So, after he looked at the spec's of one I found, we got a 800v 160A bridge rectifier module. I just have to build a heat sink for it. Again, working with him on size for it. He said that we should see slightly higher charging AMP's and at a slightly lower RPM. EDIT: the bolts on the module are M6-100 which is nearly equivalent to the 1/4-28 bolts used on the Selenium rectifier.

Next update. Thanks to the user posts here on Leece-Neville Alternator/Rectifier/Regulator systems, our truck has been converted from Positive ground to Negative ground. It was rather easy thanks to Leece-Neville alternators NOT using "case ground" methods. The rotor coils and also the output coils are isolated, and the regulator only maintains a voltage level and since the alternator make AC voltage (3-phase at that), the output of the regulator is not polarity sensitive. Only had to swap the rectifier output wires. Also had to also swap wires on the ammeters (A & B ) so it responds correctly. The water temp and Fuel gauges were bad and are disconnected. And since the starter is not a permanent magnet motor, it also is not polarity sensitive. Pictures: The rectifier before & after (note: we're upgrading away from Selenium). Notice the cloth on the thicker wires and you will see they are switched. And one of the alternator with labels added.

More updates. We have two air tanks and there appears to be a check valve between them. But, the air pressure gauge only had one of the two needles/lines/ports connected. So, I was able to find unused 1/4" air lines (I believe from a air valve at bottom/under the dash that is long gone) and there was a plugged port on a fitting between the tanks. And presto dual air gauge works.

DM800guy, We're looking for one. Message sent.

All, In the stuff we received from the Mack Museum, here a list of B85F's from 1200 to 1219, on a form called "CHASSIS REGISTER". It was handwritten and a little hard to read, so I typed it up and did a screen shot. Note: there are 3 chassis that were not on the list, 1203, 1217 & 1218. And for people in the future searching the internet to find their truck: B85F-1200 , B85F-1201 , B85F-1202 , B85F-1204 , B85F-1205 , B85F-1206 , B85F-1207 , B85F-1208 , B85F-1209 , B85F-1210 , B85F-1211 , B85F-1212 , B85F-1213 , B85F-1214 , B85F-1215 , B85F-1216 , B85F-1219

More Photo's. Fender inserts. They were missing so the seller provided them as they were not on truck when we made the offer, and were part of offer. Color is not a perfect match but looks better that the before picture.

More photo's of the project. Gauges. I cleaned up the bezels on the Air gauge, Speedo and Oil pressure. I inserted the Electrical tach (gas engine) in the hole where the water temp was only as a Photo-opt thing. And, we have a mechanical water temp gauge not shown in picture. The factory electrical water temp gauge was bad. The little fine return spring was rusted away. For the Speedo, I bent the crimped bezel open slowly, cleaned the metal, filled the pits with J-B weld quick, and painted and slowly bent it back. Also had to paint the inner black cover bezel. We are expecting the Fuel gauge to be bad since it uses a similar return spring as the water temp gauge.

Well hello neighbor. Emmaus & Bally.......

Yes!! We live in eastern PA and the convenience store chain WaWa carries Non-ethanol gas.

Great minds think the same. I just figured out the Youtube thing and edited them in. It wasn't too hard.