41chevy Posted August 29, 2010 Share Posted August 29, 2010 One of our members had this in a post from a recent show, Never saw a B with this type of nose. Is it factory and anybody know what powers it? Or is it a set back axle? Also got th new drive chains for my AC today.......now just need 1 adjuster and 1 drive sprocket. Quote "OPERTUNITY IS MISSED BY MOST PEOPLE BECAUSE IT IS DRESSED IN OVERALLS AND LOOKS LIKE WORK" Thomas Edison “Life’s journey is not to arrive at the grave safely, in a well preserved body, but rather to skid in sideways, totally worn out, shouting ‘Holy shit, what a ride!’” P.T.CHESHIRE Link to comment Share on other sites More sharing options...
Underdog Posted August 29, 2010 Share Posted August 29, 2010 Looks like maybe a B-71. Quote Link to comment Share on other sites More sharing options...
HK Trucking Posted August 29, 2010 Share Posted August 29, 2010 Looks like maybe a B-71.Yup.Longer hood to make room for a Cummins, with steer axle in the same location as a B61, rather than set forward like a B75. Quote "If You Can't Shift It Smoothly, You Shouldn't Be Driving It" Link to comment Share on other sites More sharing options...
theakerstwo Posted August 29, 2010 Share Posted August 29, 2010 In the mid 60s i remenber two of those coming in and one had a engine repower with a 6 71 DD in it . The other had a cat repower way before i remenber trucks coming from the factory with a cat engine in it. It was a equipment cat engine.The best i remenber the only thing different from a B 61 body was the rad and cowl was exstend forward. Quote glenn akers Link to comment Share on other sites More sharing options...
Rob Posted August 29, 2010 Share Posted August 29, 2010 Yup.Longer hood to make room for a Cummins, with steer axle in the same location as a B61, rather than set forward like a B75.Kinda the same but different I'm doing with my white B61. I've "split" the grille shell and going to weld in an extension of five inches to bury a CAC, and a/c condensor behind non functioning, cable operated shutters. The engine is an E6-350. Rob Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment Share on other sites More sharing options...
theakerstwo Posted August 29, 2010 Share Posted August 29, 2010 Kinda the same but different I'm doing with my white B61. I've "split" the grille shell and going to weld in an extension of five inches to bury a CAC, and a/c condensor behind non functioning, cable operated shutters. The engine is an E6-350. RobCool I like that ideal but i looked into that with mine years ago and ended up installing the Cac on the front out side . The fan is so short on a B61 that even when you do get the speed up on it it is so loud whith noise. I used a 6 blade fan on a swister clutch and it was even more louder.The problem with the narrow rad is the short fan has to be used. Quote glenn akers Link to comment Share on other sites More sharing options...
fifth wheel Posted August 29, 2010 Share Posted August 29, 2010 I have that front sheet metal, (hood, shell, headlight panels and frame extensions) I will part with. Send me a PM.Thanks FW Quote Link to comment Share on other sites More sharing options...
Mack458 Posted September 14, 2010 Share Posted September 14, 2010 Mack manufactured some larger pump B models that the 707 engines could not power. The noses were lengthened to accomodate a Hall Scott engine. Scroll down this link to see one. http://www.lastresortfd.org/museum.htm mack458 Quote Link to comment Share on other sites More sharing options...
41chevy Posted September 14, 2010 Author Share Posted September 14, 2010 I never knew Mack ran the Hall Scoots in the B models . Thanks for the link and new knowlrdge. Paul Quote "OPERTUNITY IS MISSED BY MOST PEOPLE BECAUSE IT IS DRESSED IN OVERALLS AND LOOKS LIKE WORK" Thomas Edison “Life’s journey is not to arrive at the grave safely, in a well preserved body, but rather to skid in sideways, totally worn out, shouting ‘Holy shit, what a ride!’” P.T.CHESHIRE Link to comment Share on other sites More sharing options...
Phase 1 Posted September 18, 2010 Share Posted September 18, 2010 Mack manufactured some larger pump B models that the 707 engines could not power. The noses were lengthened to accomodate a Hall Scott engine. Scroll down this link to see one. http://www.lastresortfd.org/museum.htm mack458I don't recall seeing one of those either. Do you know the model number? It appears to be built with the same parts as a B-71. Quote Link to comment Share on other sites More sharing options...
Yoos Brothers Construction Posted September 18, 2010 Share Posted September 18, 2010 That's a B-21. Mack only made 9 of them. All 9 were fire trucks. Basically it is a B-75 with the B-71 extended grillso they could fit the big Hall-Scott under the hood. Thanks, Josh Quote Link to comment Share on other sites More sharing options...
other dog Posted September 18, 2010 Share Posted September 18, 2010 more info- Quote Producer of poorly photo-chopped pictures since 1999. Link to comment Share on other sites More sharing options...
vision386 Posted September 18, 2010 Share Posted September 18, 2010 more info-I saw one of these when i was a kid,did'nt think much of it at the time,the guy ran it out of new jersey,not far from where i used to live, pulled an old 35' BROWN reefer with it,seems to me my dad said he ran florida to phila.PA once a week . He also had a B-61 integral sleeper sitting behind his house,long gone now,the last time i was by there,there was a new shopping center where the trucks were parked........Mark Quote Mack Truck literate. Computer illiterate. Link to comment Share on other sites More sharing options...
M54A1 Posted September 19, 2010 Share Posted September 19, 2010 Heres a B71 I found a while back, with a 220 cummins, 10spd roadranger,44K camelback, and double framed Quote Link to comment Share on other sites More sharing options...
M54A1 Posted September 19, 2010 Share Posted September 19, 2010 And another picture. Quote Link to comment Share on other sites More sharing options...
Peter J. Malanchuk Posted May 6 Share Posted May 6 On 8/28/2010 at 10:43 PM, 41chevy said: One of our members had this in a post from a recent show, Never saw a B with this type of nose. Is it factory and anybody know what powers it? Or is it a set back axle? Also got th new drive chains for my AC today.......now just need 1 adjuster and 1 drive sprocket. This is a Mack model B-71 which came out in 1953, when all of the new B series came out. This model may have the Cummins NH-220. The early Cummins 673 CID six had a 4-7/8 in bore by 6 in stroke, the successor the 743 CID six had a 5-1/8 in bore and 6 in stroke and the successor to the 743 CID six was the Cummins NHC which were 5-1/2 in bore by 6 in stroke with 855 CID. Foe a short period Cummins made the Super 250 which displaced 927 CID, same 5-1/2 bore but deeper stroke/sleeve. 1 Quote Link to comment Share on other sites More sharing options...
mowerman Posted May 6 Share Posted May 6 There’s one I’ve seen at watts truck show a couple of times all restored… thanks for that… bob Quote Link to comment Share on other sites More sharing options...
Freightrain Posted May 6 Share Posted May 6 Same red one that is in the original picture from Paul? That is the one I have seen a few times. 1 Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment Share on other sites More sharing options...
skydawg Posted May 6 Share Posted May 6 Someone posted maybe 2 yrs ago,he bought two of the Hall Scott pumpers.He was gonna restore one,I don`t think he`s been on here in a long time. 1 Quote Link to comment Share on other sites More sharing options...
HarryS Posted May 7 Share Posted May 7 On 5/6/2024 at 6:42 AM, mowerman said: There’s one I’ve seen at watts truck show a couple of times all restored… thanks for that… bob He live near Watt's. I've seen him at Winchester a number of times pulling a short flat bed trailer. Quote Link to comment Share on other sites More sharing options...
tjc transport Posted May 7 Share Posted May 7 On 5/6/2024 at 10:24 AM, skydawg said: Someone posted maybe 2 yrs ago,he bought two of the Hall Scott pumpers.He was gonna restore one,I don`t think he`s been on here in a long time. that would be MorrisMe. they were B21's, both from seattle fire. have the giant Hall Scott engines. his last log on was 2-23-24 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 comment Share on other sites More sharing options...
mattb73lt Posted May 8 Share Posted May 8 If you look at those B21's closely, they have both the extended radiator of the B71 and the fender to cowl extensions of the B73/75's. Probably the longest nose B's ever built. Those Hall-Scott's are just huge. 1 Quote Link to comment Share on other sites More sharing options...
mowerman Posted May 9 Share Posted May 9 On 5/7/2024 at 8:53 AM, HarryS said: He live near Watt's. I've seen him at Winchester a number of times pulling a short flat bed trailer. Seems like I saw him pulling a trailer one time and the other time he wasn’t that sounds about right Quote Link to comment Share on other sites More sharing options...
mowerman Posted May 9 Share Posted May 9 On 5/7/2024 at 2:21 PM, tjc transport said: that would be MorrisMe. they were B21's, both from seattle fire. have the giant Hall Scott engines. his last log on was 2-23-24 They both seem to be in real good shape forgot all about that guy till you brought it up… bob Quote Link to comment Share on other sites More sharing options...
mechohaulic Posted May 9 Share Posted May 9 and now we all know where the inspiration came from for the B model logo on the Watt's /BMT forum site . LOL ;;; with high hopes should this AMT model come to be , lets hope it will duplicate the logo 1 Quote Link to comment Share on other sites More sharing options...
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