Jump to content

JoeH

Pedigreed Bulldog
  • Content Count

    866
  • Joined

  • Last visited

  • Days Won

    2

JoeH last won the day on May 5

JoeH had the most liked content!

Community Reputation

267 Excellent

About JoeH

  • Rank
    BMT Forum Guru

Profile Information

  • Interests
    Mack trucks. Concrete.

Previous Fields

  • Make
    Mack
  • Model
    R686ST
  • Year
    1979
  • Other Trucks
    1995 RD688S

Recent Profile Visitors

930 profile views
  1. Just thought I'd cover that base; every time I've had someone ride along to train they leave their heel up in the air. Doesn't work with an air ride seat constantly moving over every bump!
  2. I assume you're not new to trucks, but just in case you are: PLANT YOUR HEEL! If your heel isn't planted on the floor then it's impossible for YOU to maintain a steady throttle position. But like I said, I assume you're not new to trucks, so I would guess a governor issue as well. Any clue how many miles on the truck? I'm sure someone on here is savvy with the 865 governor and can tell you what's likely going on with your governor. Not sure if there were multiple fuel pump options on that motor, post a picture of your fuel pump just for expediting the solution.
  3. Ouch!! 3100 rpms?? I'd chew a driver out big-time for that one! Not just for potential damage to truck, but also for sending a freight train down a mountain to who knows who at the bottom! You ruin your engine going downhill you're F 'ed, and most likely going to kill yourself and possibly others.
  4. Diesel is about 3.10 up here, driver hourly rates are $20-25 or so I believe. What's important is that you're making money; just be careful on 30/60/90/120 day pay, it's all well and good til the economy tanks and you're left hanging for 3 months worth of unpaid invoices. Sounds like your an effective entrepreneur! Keep it up!
  5. PA triaxle rates are in the $75-$100 per hour range I do believe. I don't know how different operating costs are, but 55 for a triaxle? Not sure how anyone makes money on that.
  6. Check your fuel supply pressure; had my 95 e7-350 make the same sound for a while, only difference was mine did it at the top end, near 1800 rpms. Took 2 sets of fuel filters to get rid of it. First set cleared it up for a few days, second set made it go away for the past year or two. Your supply pump could be shot, not making enough pressure until it gets up a little bit in RPMs.
  7. My '79 Mack endt676 wants to go to 2100, 2300 max for your shifts. The 2400 he referenced is the standard gauge limit in most? Mack trucks. The engines never go to that (hopefully) but it's the peak reading on the gauge.
  8. Don't know where you're located but .y dealer has been fine for Mack hubs in the past. Or you can try a junk yard...
  9. Unless of course they're single axle dumps and the dump bodies have their own subframe that disperses the hoist cylinder point load.
  10. Pennsylvania most of our dump trucks are triaxles rated at 73,280 lbs. Tractor frames also are not typically as deep as traditional dump trucks, so when you raise the dump body the hoist cylinder puts a massive point load on the frame right behind the cab. Watch for frame failures around the back of the cab. You really should be running double frame chassis for dump truck work.
  11. I frequently shift my '95 e7-350 around there too unless I'm climbing and need more, but it doesn't go above 1850-1900.
  12. Governor is probably set at 1850, which is probably about where peak horsepower is. In general an engine will tell you where it wants to run. Sounds like you're driving it about right.
  13. JoeH

    Sad date

    Haven't heard of this story; link?
  14. Serial number?... Send the VIN to the Mack museum in Macungie and they'll get you all the original build info for the truck; be courteous and give them a donation as donations are how they sustain their operations.
  15. You can buy new Mack upholstery for them, you don't have to invest in a new seat. Mack sells the seat covers. But if you want a new seat, I like the Legacy seat in mine.
×
×
  • Create New...