Jump to content

HK Trucking

Pedigreed Bulldog
 View Profile  See their activity

  • Posts

    1,537

  • Joined

  • Last visited

  • Days Won

    1

 Content Type 

Everything posted by HK Trucking

  1. HK Trucking
    Disconnecting or disabling the puff limiter will do absolutely nothing to make the RPM drop quicker. It WILL make the engine accelerate more rapidly once you catch the next higher gear, the side effect being black clouds of smoke from the exhaust until the turbocharger "catches up" & starts pushing in enough air for a clean burn.
  2. HK Trucking
    I've got a chrome dog that came from a 91 RB sittin' right here on my desk, it's symmetrical & still has the 87931 on it. I had a 96 CL with all Mack drivetrain that had the gold dog on it, that truck also had the Elite package.
  3. HK Trucking
    I'll never understand why so many people want to change trucks over from spoke wheels to Budds or Unimounts. Wheel wobble on spoke wheels is not an issue if they're "trued up" when installed.
  4. HK Trucking
    Yup, I'm gettin' "stranger" all the time!!!!!!! How's everything in NY???????
  5. HK Trucking
    Looking for a good running E7 350 mechanical. Preferably somewhere near Wisconsin.
  6. HK Trucking
    Paul Bacco & Son Contractors in Stamford CT had some 1955 LJSWX 10 wheeler dump trucks & they all had the typical LJ type 5x2 transmission.
  7. HK Trucking
    The side gear splines on 34, 38, & 44K Mack carriers are the same. They all use CRDP92 & CRD93 carriers.
  8. HK Trucking
    PPG 40496 is the original Mack green, just as Mad dog said above.
  9. HK Trucking
    Don't know, but the 79 & 80 came from Hartford Mack within 6 months of each other.
  10. HK Trucking
    The 1985 DM686S that I had was equipped with the hood scoop for the tip turbine, and when I worked at AC&S excavating, they had a 1980 DM686SX with the hood scoop, and also a 1979 DM686SX with the double element air cleaner and no scoop.
  11. HK Trucking
    That's not the original engine if the truck is a 76. Mack started that "ETA" type engine model designation around 1979 or 80. Regarding the "B" meaning Dynatard equipped, that "B" right after the ETA would mean that. The "B" suffix at the end ?? I'm not sure.
  12. HK Trucking
    If they've got automatic transmissions in them, that pretty much renders any truck useless.
  13. HK Trucking
    The ENDT673B 225hp Thermodyne was in between the 205 & the 250. It had the piston coolers.
  14. HK Trucking
    The ENDT673C 250 hp Thermodyne was first offered in 68 or 69 I believe.
  15. HK Trucking
    As long as it doesn't have a POS automatic transmission in it..............
  16. HK Trucking
    When I drove for Dick Morris back in the 70's his B61 # 1 had a beige colored steering wheel in it. I have seen a few other B models with beige steering wheels over the years too. I have never seen a 4 spoke steering wheel in a B model however.
  17. HK Trucking
    The reason the Allison automatic doesn't have as low of a ratio in 1st gear (on paper) is that it relies on torque multiplication of the torque converter. Even though the 1st gear ratio is 4.70:1, the engine can rev up into it's power band until the converter reaches stall speed, giving the same effect as a lower gear ratio.
  18. HK Trucking
    You also should get a spec sheet on that Allison trans & see what the gear ratio is in hi gear, then compare that to the gear ratio of the 8LL in hi gear. Unless the 2 are fairly close, you may need to change your rear diff. ratios too.
  19. HK Trucking
    More proof that automatic transmissions have no place in class 8 trucks. If someone hadn't made a big mistake and ordered that truck with a slushbox, you wouldn't be needin' to change it to a manual now.
  20. HK Trucking
    You can't run that truck that way. That body will be swinging sideways & slamming into the sides of the hoist cradle. With a full load on something will be broke in short order. Modify the doghouse so the top hoist pin is higher, or put in a shorter cylinder so the body rests squarely on the frame where it belongs.
  21. HK Trucking
    It wasn't my intention to open a discussion on gender based skills relating to operating various types of transmissions. It's always been my belief that when determining qualifications for a particular job, it's what's between a person's ears that counts, not what's between their legs. I just firmly believe (and always will) that a manual transmission with the proper ratios for the application is the best setup for a class 8 truck.
  22. HK Trucking
    Did it have a transverse torque rod on the rearmost diff?? If not, then that's why it didn't crack.
  23. HK Trucking
    Why the hell would anybody ever order a truck with an automatic transmission in the first place???????
  24. HK Trucking
    I've "jacked up" ENDT 673 & ENDT675 &676 motors to 2400 with no apparent ill effects. I wouldn't go any higher than that though.
  25. HK Trucking
    And those engines were designed to run between 1500 to 2100 RPM. If you wanted to run on the highway, there was no choice but to hold it to the floor & let it run against the governor.

BigMackTrucks.com

BigMackTrucks.com is a support forum for antique, classic and modern Mack Trucks! The forum is owned and maintained by Watt's Truck Center, Inc. an independent, full service Mack dealer. The forums are not affiliated with Mack Trucks, Inc.

Our Vendors and Advertisers

Thank you for your support!

Mack Related Links

Popular links

BMT Forum Logo

HTML tutorial
×
×
  • Create New...