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Mack Technician

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Mack Technician last won the day on November 14

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About Mack Technician

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    BMT Certified Know-It-All!
  • Birthday 03/15/1975

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    Northern Wisconsin

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  1. Mack Technician

    Back Home

    My dad died in July. Old farmer & trucker. Married 53 years. Mom says the quiet house at night is what gets to her. Maybe get that motor replaced and rev it up if it gets too quiet? If the kids don’t get you a Rev limiter for Christmas serve up some of those 7 month old fridge pick’in’s for them.
  2. Mack Technician

    Mack Midliner Water Pump

    Oddly enough.....Rock Auto also carries Mack Midliner parts dating back to 1980. Doubt they will have a scarce part though.
  3. Mack Technician

    Gonna need help with wheel bearings

    If that’s the case my kids are in their 70’s. We basically keep the WiFi at 1966 and older. ‘66 was the end of Dick Van Dyke Show.
  4. Mack Technician

    Gonna need help with wheel bearings

    Miss Kitty would never let it go in front of a judge, she’d splint it up and tie it with torn table cloths.
  5. Mack Technician

    Gonna need help with wheel bearings

    Trying to decipher the sign..... “This ???????(wagon) is an antique and is very delicate, for your own safety please stay off”?
  6. Mack Technician

    Flywheel bolt torque

    Not according to many engineers. At this level we just say “sir, yes sir” and follow the established protocol. There are some interesting reads online explaining dynamics, they primarily do it on critical fasteners.
  7. Mack Technician

    Flywheel bolt torque

    Take a group of bolts to a low torque spec then turn each one a predetermined number of degrees of turn to get your load, instead of just torquing to a top spec. Like taking a 180 ft lb bolt to 50 ftlbs and then an additional 1/2 turn with a breaker bar to reach 180 instead of just using a torque wrench to full spec. If you stretch them (per manufacturer) its a torque to yield, you intentionally distort the bolt and have to replace them every time. Otherwise you can reuse them if not taken to the “stretched” dimension.
  8. Mack Technician

    Flywheel bolt torque

    Torque to yield instead of torque turn?
  9. Mack Technician


    Not sure why reaming was accepted procedure. Most often it was caused by people erupting the bushing by hammering in instead of pressing in gently. Even if you erupt.....put the pin completly in and slap it with a deadblow sideways, all directions, and the bushing will distort back to pin shape and pin will turn free. Don’t cut metal out of a new, soft metal, or nylon dressed, bushing.
  10. Mack Technician

    Flywheel bolt torque

    Might be an argument that torque turn is the product of better quality control in fastener manufacturing. Every bolt now has perfectly uniform tensile.
  11. Mack Technician

    PTO options on 18 speed mack transmission?

    Let your vendor spec your percentage, pump and PTO, His liability. After losing a bunch of transmissions to PTO failures we went to an 82 series Muncie. If you have a small window PTO you will need a plate. FYI- if you re-house the PTO output for direct mount put new bearings/seal in it, your transmission only lives as long as the PTO’s smallest, weakest, bearing. That’s why the 82 series became mandatory. You don’t need one that big though, we set up log booms with rail gear lifts. True story from three months ago. One of the older guys (60) at the shop was installing an 82 series and left it rest on his stomach while he swapped shim gaskets. Said he felt a sharp stab in his guts. Didn’t feel good. Went home and collapsed in the shower. Ma hauled him in. Tore his intestines open. They are not a PTO, should be listed as an auxiliary transmission.
  12. Mack Technician

    Flywheel bolt torque

    What fjh said and they can also sell a cool digital angle meter to you also. Anyone remember Mack E-tech flywheels, rod or main brgs coming loose in the abscence of torque-turn specs? I don’t.
  13. Mack Technician

    Flywheel bolt torque

    Torque to 44 ftlbs. In X-cross pattern. angle tighten 120 degrees in X-pattern.
  14. Mack Technician

    Eup 1997 E7

    Two weeks ago got a Liehberr injector for <25% the cost of OEM, new, no core, from K&S.
  15. Mack Technician

    PTO options on 18 speed mack transmission?

    Definitely. 90% of the PTOs I’ve installed are on front box left. Just make sure you get your PTO percentage calculated to fit your application.

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