D2Denny

Printer is a run of the mill HP inkjet using standard cartridges. Print quality set on high.

Something to keep you busy on a cold dark winter's night. Target sells a plain 9" battery wall clock for $4.99. 5 screws and the glass and cover is off. Gently pry off the hands noting their original position. Pick up a pack of vinyl sticker paper either at Target or Walmart. Below I have attached the Mack logo properly sized for this clock (double check size by printing on regular paper first as you may have to slightly resize it after download). Set you inkjet printer to the highest quality. Print it out and let it sit for a few hours to completely dry the ink so you don't smudge it. Carefully cut it out and punch or cut a 7/16" hole in the center. Apply the decal/sticker to the face, install the hands, assemble the cover, install a single AA battery, set the time and you'll have a great addition to your shop. I have done this on larger clocks and even circular outdoor thermometers by resizing the logo. Also have done a few other makes for friends by searching the web and downloading their logos.

As for "Block" tractors that Brockey mentioned (we called them coffin carriers) one of my first tasks as a maintenance management trainee was to figure out and design the "block" that set on the frame of a standard 2 axle fleet tractor. Had to calculate out how much concrete was needed to create an 18,000 lb block and design the "Box" to form it up in. Had the trailer shop build the box out of plywood mounted on the tractor and filled it with concrete. Had 5 of these units. Interestingly enough, when CF went belly up I was working for Yellow as shop manager in Columbus Ohio. The Yellow Shop in Richfield bought several of the "Blocks" at their going out of business auction, sent one down to Columbus and we mounted up on a retired tractor as a yard "Pusher" unit.

I was Shop Manager in CF's Buffalo shop during the 70's. For the twin forty foot Turnpike doubles we had a small fleet of cabover Freightliner tandem drive tractors powered by 12V71's set at 390 HP and one test tandem tractor powered by a Cat 1693. Also, at the time we were experimenting pulling triple pup trailers that the NY thruway authority insisted be 2 axle drive. For that CF had Freightliner build a pair of 2 axle tractors with front wheel drive in a 4X4 configuration. These were powered by some of the first 8V71T's at 350 HP. Couldn't keep front axle steer knuckles in them as drivers would pop them in the hook areas as they were assembling their set. Eventually it was proved to the Turnpike authority that a regular two axle doubles type tractor could do the job effectively and safely. We converted the 2 4X4 tractors back to standard doubles tractors in our shop.

I started my career with CF in their Richfield Ohio shop in 1970. The Truck Tainers were just being put into service then. I worked with some of the Freightliner engineers as they worked through the growing pains. Attached is an article I wrote for the ATHS NEO chapter newsletter a while ago about these units.

The EN-707C was rated at 222 HP at 2100 RPM. The ENF-707C per the brochure is rated at 276HP at 2600 RPM. Not knowing for sure but I would bet my Mack Hat that the ENF designation relates to a fire engine rating. Dual ignition that a lot of gas fire engines had, and spinning it another 500 RPM for pumping applications would account for the 50 HP increase.

Great looking Cruiseliner. Glad Macks have a presence in Ireland. My grandfather was from Doona in County Mayo and my grandmother was a Kennedy from County Wexford. As a small lad in Cleveland Ohio in the early 50's I was taken to a few Irish Football (soccer} matches. Most of the players were "Greenhorns" fresh from Ireland. Grandma and Grandpa always sponsored an Irish immigrant and housed them in a spare room in the basement until they could get on their feet.

Derrico: Was at local NAPA today. Asked about tune-up parts for your engine. Had some in stock and the rest a day away at distribution center. Distributer is a Delco and these are still pretty common parts. About $62.00 for all Distributer cap Echlin RR95 Rotor Echlin RR83 Points Echlin CS763A Condenser MPE RR174SB

As Red Horse stated the B cab was quite a bit smaller than the L cab. The L appealed to the true over the road driver (owner operator) who needed a sleeper which would be much easer to enter than contorting yourself around in a B cab to try to climb into an add on sleeper. Most B's used by the freight fleets were relay and slip seat operations, so no need for a sleeper. As a side note, if your going to haul crops, Every fall I see several really nice day cab R's and Superliners that area farmers use to haul their crops to the local Grainery. They really stand out, have decent power, and can still be found at a reasonable price.

Attached is a scan of the B Model owner's manual on tune-up specs for the gas engines. I still have it so if there are further questions, ask For the gear units the manual shows 90 wt mineral oil for all. I would use 80-90 wt stuff you find at tractor supply or Rural King. The B-20 has the CL-51 Clutch, TR-73 or TR-730 trans, FA-201 front axle, SG-34 steer gear, RAS-202 rear axle, CRS-89 carrier If I remember correctly the plugs in my EN401 were Champion H-10's. Your old line NAPA store will be able to look up the points and condenser and order them The EN-291 holds 9 qts of oil

Other Mack Related Garage Art

My 25 plus year Tidewater Mack t shirt has gotten pretty ratty. Instead of relegating it to the rag bin never to be seen again, I repurposed it to a piece of art to hang on the shop wall along with some of my other memorabilia. I used a cast off picture frame and a buck and a half of poster board and Voila!

As a follow up, this complete unit was just recently acquired by the Keystone Truck and Tractor Museum from the Virginia Transportation Museum. When UPS purchased Overnight they loaned/donated the rig to the Virginia museum as they transitioned all the Overnight fleet to UPS Freight livery. Also, this truck was featured in the coffee table book "Mack, Driven for a Century"

The B in the photo is B42T18854 originally sold to Krantz paving in Buffalo NY in 1960. The chassis was stretched and a distribution body installed. It was only used in the summer paving season. In the 80's it was sold to Strawser Paving in Columbus Ohio. I purchased it from them (106,000 miles on the odometer) in 1994 and during restoration, shortened it back up to tractor configuration. It has a Magnadyne EN401 150 HP engine and the "baby quad" TRQ77. After swapping out the original 5.57 rear for a 4.33, I drove it to many shows in and around Ohio and its neighboring states. In 2003 I sold it to Overnight Transportation. They had their Shop paint it in Overnight livery and matched it up with their SS Trailer. It was a great running, quiet, and comfortable truck that cruised easily at highway speeds.

Back in the late 80's Tom Pierce did a frame off restoration of the B61 that he purchased new for his family's construction company back in the 60's. Unfortunately, in the early 90's he had to sell his shop and his collection of trucks due to a divorce. Big John resided in the Dick Best collection for decades, but recently was sold to a collector in North Carolina. (name and location unknown). Does anybody know who the new owner is and where it is located? Tom is in his late 80's and I keep in touch with him. He would like to know where his pride and joy resides.

Brocky: There were 2 cab companies in Orrville, Ohio. Orville Body and Crown Steel Products. Apparently, they both built cabs for Brockway at one time or another. Schiller Globe was Toledo Ohio company that was a conglomerate of various automotive industry suppliers. My email is dencmp@outlook.com. If you send an email to that address, I will forward to you 2 great multi page articles on Crown and Orville. Dennis

I have confirmed that Orville Body in Orville, Ohio made Mack MB cabs. I bet my bottom dollar that it was a "Mackified " adaption of the White Compact 1500 cab as Orville also made cabs for White Motors. I have attached a portion of Bill Peters's comprehensive article on the Orville Body Company. I wonder if AussieMack1988 MBR's cab was made here in the Buckeye?

Who made the cabs for that model MBR? Looks very close to the cab White used on their 1500 series trucks in the 60's and 70's. Had a fleet of them as city trucks with CF in the 70's

Pulled a 31 Ford A Tudor body off the frame to prep the chassis for a flathead V8, 39 trans and juice brake 40 banjo rear. Ran out of room on the shop floor to store the body so now I have a 4 door Mack G-75!

Films were made by Highway Safety Films out of Mansfield, Ohio. Photos and films were real. They had freelance photographers ride with the Police, Sheriff, and ambulances called to accident scenes around the Mansfield area. They were in business late 50's to the early 70's. They also got involved with porno films, and some illegal sex crime surveillance police films. The woman that was in charge of the Mansfield operation mysteriously died toward the end of their run.

Came across this video on YouTube "Carrier or Killer" It is a truck driver safety movie made in the mid 1960's by the same company that made the drivers education movies "Signal 30" and "Mechanized Death" that we saw in class in the 60's. Neither the B Mack or the driver made it out alive. Quite a few other trucks from this period in the film too.

How about this Overnight Mack? Was my B-42. I sold it to Overnight about 20 years ago and they painted it in their livery as their heritage truck.

Spent a total of 36 years with both CF and Yellow. Was fortunate to be long gone from each before they went belly-up. They were great fleets in their day. Learned a lot from both. Sorry to see Yellow go, but the writing was on the wall since 2003 when they bought Roadway and USF Holland and went 1 billion $$$ in debt.

My G-75 has the END673 engine. Fresh 15W40 Delvac oil , clean screen in the pan, no visible signs of excessive wear when I pulled the pan, new 750 style filter in the can. Running when warmed up at highway speed have 25 PSI and idles at 5 PSI. Truck has a WGB model WB-2 Oil Clarifer bypass filter. The truck build line sheet shows a 485GB filter assembly installed at the factory. Don't know if these are the same. Anyway, I have included a photo of the oil distribution plate on the left side of the engine. The small line coming off the T goes to the OIL PSI gauge and the larger line to the rear goes to the oil filter. (Is this the proper location for the Oil PSI gauge?). The bottom line partially hidden under the T is the return from the filter and dumps back into the pan. I suspicioned that there was excessive flow through the filter and the oil pump could not keep up. I removed the filter feed line and blocked it off. Started and ran the truck up to temperature. Oil Psi at idle is now 15 and 40 at highway speed. My question is does anyone have info or literature on the WGB oil filter. Is there a restrictor fitting or metering orifice in this filter assy?? Also in the photo, the #4 line running up to the left goes to external oilers to the rockers. This could be another source of excessive oil flow demand reducing PSI. I'm going to pull the valve covers and see if the rockers are oiling without the external feed and possibly delete this feature. Any ideas on this??

Same as 30 - 31 Model A hood latches. Get them in black or stainless about $15.00 at Bratton's, Snyders, or Gaslight