h67st 1,243 Posted February 18 Share Posted February 18 6 hours ago, mrsmackpaul said: For 380 bucks you could have changed all 4 over to the modern style ones Still, it is what it is I guess Paul One thing you run into on these old camelbacks--not enough room to fit a standard chamber. The rotochambers are a lot smaller diameter. Quote Link to post Share on other sites
mrsmackpaul 2,536 Posted February 18 Share Posted February 18 People normally just make a bracket up to compensate for that, Im pretty sure Mack in Australia even sold the bracket for many years, they may even still do Paul Quote Link to post Share on other sites
Popular Post AMGeneral 74 Posted February 19 Author Popular Post Share Posted February 19 (edited) 12 hours ago, h67st said: One thing you run into on these old camelbacks--not enough room to fit a standard chamber. The rotochambers are a lot smaller diameter. Correct, Even the Maxi design chamber is a close fit,(3/16 inch between the chamber and backing plate). The one plus with this design brake chamber is they can be re-sealed for about $40 as long as the internal metal parts are serviceable. I installed the new chamber today, adjusted all the brakes, and took it out for it's first test drive. The guess on the top speed was correct, 47-48 mph at 2000 rpm in 5th/Hi split, Everything seems to be operating as it should, next will be replacing the bed floor, it's pretty well shot. Edited February 19 by AMGeneral 3 Quote Link to post Share on other sites
Popular Post AMGeneral 74 Posted February 22 Author Popular Post Share Posted February 22 Evening Folks, I did a little walk around video of the B this afternoon, enjoy! 1965 Mack B815 walk around. - YouTube 7 1 Quote Link to post Share on other sites
Freightrain 2,524 Posted February 22 Share Posted February 22 Nice. Looks pretty solid overall. Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to post Share on other sites
mrsmackpaul 2,536 Posted February 22 Share Posted February 22 Only problem I see is that it isnt in my yard, yes Im jealou A great looking truck, it looks like a really good start for a project Paul Quote Link to post Share on other sites
tjc transport 1,279 Posted February 22 Share Posted February 22 i am glad it i not in my yard. that truck would only get me in trouble. 1 Quote when you are up to your armpits in alligators, it is hard to remember you only came in to drain the swamp.. Link to post Share on other sites
Popular Post AMGeneral 74 Posted March 2 Author Popular Post Share Posted March 2 Nothing much to report since the last post, I converted the exhaust back to a single stack, installed 4 new group 31 stud post batteries, and did a federal inspection to prepare it for it's return to the road next week. 4 Quote Link to post Share on other sites
AMGeneral 74 Posted March 6 Author Share Posted March 6 (edited) Well, today was the day, after a quick trip to the local tag office, the title, tag and taxes are paid and the B is now legal for the road. After a fill up at the local Murphy station, I went by the quarry and checked the empty weight, 28,500 lbs with an empty bed and 2 full fuel tanks, not as bad as I was expecting. That allows me to haul 13 1/4 tons as it sits now. This will most likely drop after I re-plate the bed with 3/8 steel. Edited March 6 by AMGeneral 2 Quote Link to post Share on other sites
tjc transport 1,279 Posted March 6 Share Posted March 6 that is not bad at all. i was expecting closer to 30,000 Quote when you are up to your armpits in alligators, it is hard to remember you only came in to drain the swamp.. Link to post Share on other sites
mrsmackpaul 2,536 Posted March 6 Share Posted March 6 3/8 is pretty thick I would of thought I think most tipper bodies built in Australia now are maybe 3mm or 1/8th Hardox steel There would be a equivalent steel in the U.S. if not the same steel I feel thats gunna be 1/3 the steel in weight and possibly 1/2 the cost Might be worth looking into Good to have it road registered That is a nice lite weight for the truck I reckon Paul Quote Link to post Share on other sites
tjc transport 1,279 Posted March 6 Share Posted March 6 agreed 3/8 is way too thick for overlay. if the floor is in decent shape, 1/8 is fine. if it is real rough, 1/4. Quote when you are up to your armpits in alligators, it is hard to remember you only came in to drain the swamp.. Link to post Share on other sites
DavCut 17 Posted March 8 Share Posted March 8 If you’re looking to put her to work you might see if the local mulch suppliers are looking for truckers. You will most likely max out on volume before you get close on weight. My Dad worked for one back in the day and they could never get enough trucks, especially in the spring. Looking forward to more updates. Dave Quote Link to post Share on other sites
Wobblin-Goblin 818 Posted March 13 Share Posted March 13 Nice B81. Thanks for sharing your story. I had a '64 B81SX dump that I sold a few years ago. It was in just as good of shape as your new one. The guy that bought it had a garage and I didn't, so it has that going for it now. 1 Quote Link to post Share on other sites
Popular Post AMGeneral 74 Posted March 14 Author Popular Post Share Posted March 14 (edited) 18 hours ago, Wobblin-Goblin said: Nice B81. Thanks for sharing your story. I had a '64 B81SX dump that I sold a few years ago. It was in just as good of shape as your new one. The guy that bought it had a garage and I didn't, so it has that going for it now. Thanks, I have watched several of your videos on youtube, that was a good looking B-81 you had. I spent Friday and Sat putting about 250 miles on the B hauling wood and equipment to our new property, the truck is an absolute joy to drive, and even though it has been almost 30 years since I drove a quadbox, it all came back to me quickly. I will say, the B gets the stares from other truckers and the public everywhere it goes, and other than a few pinion seal drips, it doesn't leak a drop of anything. It is an awesome truck to say the least, and I intend to keep it that way! Edited March 14 by AMGeneral 3 Quote Link to post Share on other sites
mowerman 2,230 Posted March 14 Share Posted March 14 i did enjoy your walk around thanks for sharing...bob 1 Quote Link to post Share on other sites
AMGeneral 74 Posted March 19 Author Share Posted March 19 (edited) Well, The B81 gets 4 new 12.00R24 shoes in the morning, The rear rear axle had 4 caps on it and the weather checking is more serious than I would like on a truck this heavy, most of the checking is in the sidewalls, but I noticed one of the caps starting to come apart in the tread, better safe than sorry! $2200 for 4 new tires, mounted with new flaps and tubes, not too bad. Still enjoying driving this truck ,it never gets old. Edited March 19 by AMGeneral Quote Link to post Share on other sites
Red Horse 1,614 Posted March 19 Share Posted March 19 59 minutes ago, AMGeneral said: Well, The B81 gets 4 new 12.00R24 shoes in the morning, The rear rear axle had 4 caps on it and the weather checking is more serious than I would like on a truck this heavy, most of the checking is in the sidewalls, but I noticed one of the caps starting to come apart in the tread, better safe than sorry! $2200 for 4 new tires, mounted with new flaps and tubes, not too bad. Still enjoying driving this truck ,it never gets old. What brand tires?? tough to find 24's! Quote Link to post Share on other sites
AMGeneral 74 Posted March 20 Author Share Posted March 20 On 3/18/2021 at 9:13 PM, Red Horse said: What brand tires?? tough to find 24's! I went with 4 Ironman I-301 20 ply tires, they are one of the tires offered by Hercules Rubber company here in the U.S. but I think the tires themselves are made overseas. Time will tell how the wear and hold up, but my local tire supplier has never steered me wrong over the years I have purchased from him. Quote Link to post Share on other sites
66dc75 990 Posted March 20 Share Posted March 20 I've had good luck with Ironman on 19.5 wheels 1 Quote Link to post Share on other sites
Bigdogtrucker 1,185 Posted March 24 Share Posted March 24 What did the top speed out on the road end up being? Quote Link to post Share on other sites
70mackMB 466 Posted March 24 Share Posted March 24 The part of the video of the inside of the cab about made me cry. (l drive a Volvo🚮 company tractor.) .....Hippy 1 Quote Link to post Share on other sites
AMGeneral 74 Posted March 25 Author Share Posted March 25 11 hours ago, Bigdogtrucker said: What did the top speed out on the road end up being? Flat out, loaded or empty, at 2100 rpm is 50 mph, GPS verified. But, on most hills, I usually only have to downshift 1 or 2 times. Quote Link to post Share on other sites
AMGeneral 74 Posted March 25 Author Share Posted March 25 (edited) 4 hours ago, 70mackMB said: The part of the video of the inside of the cab about made me cry. (l drive a Volvo🚮 company tractor.) .....Hippy It is a blast to drive, I have put almost 500 miles on it in the last couple weeks hauling logs, stone, and equipment out to the property we are moving to, It always gets stares, thumbs up and Huge grins from people as I pass by, The only ones who don't enjoy it are the cars behind me as I get up to speed. I usually start out in 1st direct, then progress up through the gears till I hit 4th Hi split at 38 mph, the reach over, shift to 5th and let the dog pull!👍 Edited March 25 by AMGeneral 2 Quote Link to post Share on other sites
Mark T 81 Posted March 25 Share Posted March 25 10 minutes ago, AMGeneral said: It is a blast to drive, I have put almost 500 miles on it in the last couple weeks hauling logs, stone, and equipment out to the property we are moving to, It always gets stares, thumbs up and Huge grins from people as I pass by, The only ones who don't enjoy it are the cars behind me as I get up to speed. I usually start out in 1st direct, then progress up through the gears till I hit 4th Hi split at 38 mph, the reach over, shift to 5th and let the dog pull!👍 Ya big tease Quote Link to post Share on other sites
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