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Pedigreed Bulldog
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Everything posted by JoeH

  1. JoeH

    Frame rails

    All R and RD frames I've ever seen splay out wider around the engine and transmission. A good double frame RD should probably take a V8 just fine, but I don't know how much fabricating you'll have to do for engine mounts. The v8 also makes a lot of heat, i don't think the R model radiator surface area is big enough to keep it cool if you're gonna work it hard. Superliners have that big square hood to hold a big square radiator. Not sure if a superliners cab and hood will bolt right to a Rd frame. Might have to make some parts.
  2. Let me know when you get a cost figured out, may be interested.
  3. Steering pumps usually put out ballpark 700-750 psi if I'm not mistaken. Put a gauge on it, what do you get?
  4. What model and year Mack do you have? Is it Camelback? Rd688S is 44k rear tandem. Rd688ST is 38k rear tandem. Rd688SX is 55k rear tandem.
  5. Just reading straight from the torque chart. If there are 2 different size bolts used on the oil pan I would do the smaller ones 15 and the larger ones 23. On my old 1979 engine it has 2 larger bolts at the back of the engine, and one or two big bolts at the front. I'm not sure what the Etech motors have front and back.
  6. Never bought a new vehicle, but you gotta get quotes from other manufacturers for their truck, and bring it back to Mack. Then go back to other dealer, then back to Mack. Make them compete for your dollar.
  7. JoeH

    Mack or Volvo?

    Mack has made legendary engines (and trucks) in the past. To what extent is/was Mack involved in engineering of Volvo's Mack engines after Volvo bought them? Are the MP series engines strictly Volvo engineering? Or did Volvo buy Mack so they could have their engineering departments? Just curious for future truck needs. I'd feel a little more loyal if there was still some Mack in there.
  8. Oil pan to cyl block (8mm screw) 23 lb-ft Oil pan to cyl block shoulder 15 lb-ft
  9. But the product is NOT running that long, emissions regulations are making sure of that. They have to modify engines every year, they have to design it for Uncle Sam, not for reliability.
  10. I take it you got into trucking after the Marine Corps? Welcome to BMT, and thanks for serving our country! Assuming you're a Marine.
  11. Start a new thread. No one's going to see your problem hijacked into someone elses problem. Recheck the work done in the shop. Something probably got kicked standing on the frame to change injectors.
  12. Never worked on a positive ground vehicle, does that affect what you hook up the test light to?
  13. I don't see why you can't attach the stacks to the headache rack, seems like a good idea to me!
  14. You can always put an engine brake on. What are the hours? I have a 95 e7 with 18,600 hours and 250k miles. Hours don't scare me one bit. If something breaks I'm going to fix it. If an engines gonna break it's gonna break. Its what moving things do, and its part of the costs of running a business.
  15. I have a 95 RD688S, which is a 350 hp e7 engine. I will bet your dog outpulls my dog. Your dog is a Maxidyne engine, which means it has a broad power band. The older em6 maxidyne makes at least 90% torque in the entire power band. Our maxidynes we own that are pre em6 (endt676) pull from 1200rpm all the way to 2100rpm. Not sure about what the em7 does, never driven one. My e7 350 only makes that much power for like 3 or 400 rpms. It's probably just fuel pump adjustments and watching your EGTs, but I've never tweaked a fuel pump. Only read what guys post here. Maxidynes are great because of that powerband. It may only be a 300, but comparing a Maxidyne to a cat or Cummins of similar hp is like apples to oranges. Or cats to dogs.
  16. If you cross reference the U and DM cab numbers you will get a Yes. "Rider seat" is passenger seat.
  17. This truck has 18,600 hours on it, not all of them by us. Truck has about 250,000 miles, we got it around 215,000 or so. Our trucks meter concrete to the nearest 1/10th of a yard, this one packed out full will do 10 yards, weighing in at roughly 73,280, PA's max triaxle weight. This particular mixer is a 1975 Daffin Concrete Mobile. We renovated it from a 7 yarder to a 10 yarder and have had it on the road for nearly 5 years now. Daffin no longer exists, but some of their mixers are still sneaking around, we have 3 of them. One of Daffin's dealers, CemenTech, ultimately wound up buying Daffin Concrete Mobile rights, and today they are a major Volumetric Concrete Mixer manufacturer. Sand, stone, cement, water all kept separate. There are 2 tanks on the passenger side for calcium chloride (accelerant) and air entrainment. It's a "ribbon feed" manufacturing unit, basically meaning it siphons materials continuously. Materials drop off a conveyor that runs above the truck frame into the auger you can see sticking out the back of the truck. Three 4' chutes can be hung off the auger for a total reach of 18' 6" (on level ground) from the back center of the truck. Can start and stop at any point, and the auger will have anywhere from 1-2 wheelbarrows in it depending on auger mix angle. If customer gives me a heads up when we are almost done the pour I can usually time it so I only leave a 5 gallon bucket or less of washout. This truck mixes slow at a rate of about 15-17 yards per hour, CemenTech makes a mixer that will put out 90 yards per hour! That's a little fast for us, a lot of our customers use wheelbarrows. A barrow would be full in about 2 or 3 seconds, and would probably get knocked over in the process. These trucks can be used in remote locations and can mix concrete non stop as long as you can keep feeding materials in. You could literally mix concrete 24/7 without having to stop the truck. Some structures like silos and water towers get poured continuously with Slip Forms So there are no cold seams. Being only 15 miles from the edge of Philadelphia, I've never been anywhere remote with our trucks. We also don't bid on jobs, we're C.O.D. Which means nobody owes us money, and we pay our bills.
  18. So to throw everything off, here's a picture of a 1976 U685T flatback cab with long handles. Has the tan plastic interior that was used up to the end of the R series. I think it was indicated that the flatback was pre 1973. Just noted that Mr Hancock indicated the U model stuck with the flatback cab. Where would I look for a cab designation?
  19. If you drive local and don't mind the tow back if it fails again, no big deal. If the trucks going to fail out across the country I'd do the cam. Either way I'd drop the oil pan and get as up close and personal as possible to that cam lobe to check its condition. I assume the cam can be seen from underneath, I've never had an oil pan off anything other than an endt676.
  20. Lol that looks like a custom job from a driver that got fired not too long after the boss saw it.
  21. Mine has the same grab handle as the newest RD's, I pulled the pass side off the U to stick on my 2001 RD tractor. Fit like a glove. I've got the stomach bug, so I'm not going out today to see if it's a flatback or +3 cab.
  22. I think Rob or someone was about maxed out on picture uploads, he might have deleted posts to make room for more pictures.
  23. I have no doubt someone here will be very eager to take them off your hands!
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