fullfuel01 Posted October 29, 2012 Share Posted October 29, 2012 can someone tell me if it was really powered by a detroit.1M2N143Y8EA001261 Quote Link to comment https://www.bigmacktrucks.com/topic/28048-detroit-powered-r-model/ Share on other sites More sharing options...
terry Posted October 29, 2012 Share Posted October 29, 2012 Can't help on the numbers, but i do remember R model macks in the mid and later 60's with 318 detroits. Quote Link to comment https://www.bigmacktrucks.com/topic/28048-detroit-powered-r-model/#findComment-143701 Share on other sites More sharing options...
Bobby Covert Posted October 29, 2012 Share Posted October 29, 2012 Isn't that how The R-models Roadway used were built? Quote Link to comment https://www.bigmacktrucks.com/topic/28048-detroit-powered-r-model/#findComment-143703 Share on other sites More sharing options...
kscarbel Posted October 30, 2012 Share Posted October 30, 2012 Allentown-based Air Products took delivery of a fleet of 350 horsepower 8V92-powered R-626ST tractors from the Allentown factory branch (around 1980 if I recall correctly). I looked them over while they were being prepped for delivery. Quote Link to comment https://www.bigmacktrucks.com/topic/28048-detroit-powered-r-model/#findComment-143706 Share on other sites More sharing options...
oilburner Posted October 30, 2012 Share Posted October 30, 2012 Isn't that how The R-models Roadway used were built?yes that is how they were built in the 70's, they also had some that the muffler in the front bumber, My wifes uncle drove one that had a 318 and a 13 speed, he gave up a cabover with a bunk for a day cab with a 318, the cabover had a 238 he said he thougth he was chicken haulin with the big 318!! Quote Link to comment https://www.bigmacktrucks.com/topic/28048-detroit-powered-r-model/#findComment-143707 Share on other sites More sharing options...
dover Posted October 30, 2012 Share Posted October 30, 2012 Where are Tim and Ben on this one. I figured they would have production numbers and everything.Ben Quote 1962 B733 L cab Link to comment https://www.bigmacktrucks.com/topic/28048-detroit-powered-r-model/#findComment-143713 Share on other sites More sharing options...
Superdog Posted October 30, 2012 Share Posted October 30, 2012 Allentown-based Air Products took delivery of a fleet of 350 horsepower 8V92-powered R-626ST tractors from the Allentown factory branch (around 1980 if I recall correctly). I looked them over while they were being prepped for delivery.The R626's had 6V92 Detroits,a total of 277 were built between 1978 and 1984.the R770 had the 8V92 Detroit,a total of 136 were built between 1977 and 1985the R773 had the 8V71 Detroit,a total of 1801 were built between 1967 and 1978the R769 had the 8V71T Detroit a total of 13 were built in 1975 Quote Link to comment https://www.bigmacktrucks.com/topic/28048-detroit-powered-r-model/#findComment-143722 Share on other sites More sharing options...
fullfuel01 Posted October 30, 2012 Author Share Posted October 30, 2012 that will mean it was #261 on a total of 277thanks Mike Quote Link to comment https://www.bigmacktrucks.com/topic/28048-detroit-powered-r-model/#findComment-143743 Share on other sites More sharing options...
David Posted October 30, 2012 Share Posted October 30, 2012 The R626's had 6V92 Detroits,a total of 277 were built between 1978 and 1984.the R770 had the 8V92 Detroit,a total of 136 were built between 1977 and 1985the R773 had the 8V71 Detroit,a total of 1801 were built between 1967 and 1978the R769 had the 8V71T Detroit a total of 13 were built in 1975That's about 2227 too many. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/28048-detroit-powered-r-model/#findComment-143747 Share on other sites More sharing options...
Superdog Posted October 30, 2012 Share Posted October 30, 2012 I sure wish I could find a breakdown on the Hayward built trucks as I'm sure there were way more Detroit powered trucks.I remember several years ago on Ebay I was bidding on a FS781T,factory powered by a 6-71.They also offered the 6V53 in RL/RS400's. Quote Link to comment https://www.bigmacktrucks.com/topic/28048-detroit-powered-r-model/#findComment-143748 Share on other sites More sharing options...
Brian Blaylock Posted October 30, 2012 Share Posted October 30, 2012 Don't forget the few RS700's built in 1974 with the 12v71 Quote Link to comment https://www.bigmacktrucks.com/topic/28048-detroit-powered-r-model/#findComment-143770 Share on other sites More sharing options...
GreenGiant2 Posted October 30, 2012 Share Posted October 30, 2012 they were also built before 74, bullhusks 12v Quote We the unwilling, Lead by the unqualified, are doing the impossible, for the ungrateful. Link to comment https://www.bigmacktrucks.com/topic/28048-detroit-powered-r-model/#findComment-143790 Share on other sites More sharing options...
Superdog Posted October 31, 2012 Share Posted October 31, 2012 It would also be nice to know if there were any 12V71's put in the FL/FS.It was a listed option,but never ever seen one,pics or in the flesh.They made several FL/FS with the 8V71.They made 1157 regular F models with 8V71's and 23 with 8V71T's,and 75 with 6V92's. Quote Link to comment https://www.bigmacktrucks.com/topic/28048-detroit-powered-r-model/#findComment-143823 Share on other sites More sharing options...
farmer52 Posted October 31, 2012 Share Posted October 31, 2012 can someone tell me if it was really powered by a detroit.1M2N143Y8EA001261Contact the Mack Museum and get a copy of the build record. Quote Ken PRR Country and Charter member of the "Mack Pack" Link to comment https://www.bigmacktrucks.com/topic/28048-detroit-powered-r-model/#findComment-143835 Share on other sites More sharing options...
fullfuel01 Posted October 31, 2012 Author Share Posted October 31, 2012 Yes they had F model with 12V?? if you look in the Bulldog magazine of that time one company of Montreal Qc had one.they we're hauling brick. Qith the salt they use on the Quebec road, don't even think about finding that F model alive... Quote Link to comment https://www.bigmacktrucks.com/topic/28048-detroit-powered-r-model/#findComment-143836 Share on other sites More sharing options...
storkmack Posted October 31, 2012 Share Posted October 31, 2012 I believe there were a few Western F's with Allis-Chalmers engines in them also. -Brad Quote Link to comment https://www.bigmacktrucks.com/topic/28048-detroit-powered-r-model/#findComment-143837 Share on other sites More sharing options...
Superdog Posted October 31, 2012 Share Posted October 31, 2012 I believe there were a few Western F's with Allis-Chalmers engines in them also. -Bradyes there was,the remains of one showed up on Ebay a few years back. Quote Link to comment https://www.bigmacktrucks.com/topic/28048-detroit-powered-r-model/#findComment-143838 Share on other sites More sharing options...
Doug Maney Posted October 31, 2012 Share Posted October 31, 2012 Here is the breakdown for 1M2N143Y8EA001261: Manufacturer Mack Trucks, Inc. Make Mack Model Year 1984 Model R626T Engine Manufacturer Detroit Engine Series 6V 92 Engine Capacity 522 (CID) Fuel Type Diesel Vehicle Type Truck Cab Type CBE Chassis Truck-Tractor Brake System Air GVWR Class Class 8: 33,0001Lbs & Over Country United States Assy. Plant Allentown, PA Quote Interested in Old Trucks? Check out: www.antiquetruckclubofamerica.org Link to comment https://www.bigmacktrucks.com/topic/28048-detroit-powered-r-model/#findComment-143840 Share on other sites More sharing options...
james j neiweem Posted October 31, 2012 Share Posted October 31, 2012 How many Roadway Macks with detroits and what type. Quote Link to comment https://www.bigmacktrucks.com/topic/28048-detroit-powered-r-model/#findComment-143842 Share on other sites More sharing options...
Superdog Posted October 31, 2012 Share Posted October 31, 2012 How many Roadway Macks with detroits and what type.don't know how many of each they ran,but they had R773's,U773's and U626's Quote Link to comment https://www.bigmacktrucks.com/topic/28048-detroit-powered-r-model/#findComment-143844 Share on other sites More sharing options...
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