Engine and Transmission

6,442 topics in this forum

1. Pulling injectors on a 673 1 2 3 4 24

   By Craig N, November 9, 2022
   • 587 replies
   • 43.5k views
   • 
   • Craig N
   • July 21, 2024

2. Vibration that 2 mechanics and Mack dealer can’t figure out 1 2 3 4 17

   By RobM626, March 1, 2018
   • 405 replies
   • 66.9k views
   • 
   • FBGNO
   • November 18, 2020

3. Mack AI460 AI427 AMI low torque low horsepower poor fuel mileage granite , dead dog , remediation 1 2 3 4 11

   By Mack Technician, June 21, 2017
   • 271 replies
   • 79.5k views
   • 
   • JoeH
   • April 30, 2024

4. 2005 CHN613 ASET 427 power/torque/boost loss PLEASE HELP 1 2 3 4 11

   By TorresTransport, September 30, 2014
   • 268 replies
   • 15.8k views
   • 
   • Artful dodger
   • May 21, 2024

5. 237 flywheel? 1 2 3 4 9

   By Freightrain, December 6, 2015
   • 200 replies
   • 29.9k views
   • 
   • Freightrain
   • June 28, 2016

6. Looking for 1979 Mack engine head 1 2 3 4 8

   By RS Disposal, September 15, 2023
   • 181 replies
   • 11.2k views
   • 
   • RS Disposal
   • January 8, 2024

7. E6-285 2VH problems and solutions 1 2 3 4 8

   By allfritz123, November 9, 2023
   • 179 replies
   • 12.6k views
   • 
   • fjh
   • October 11, 2024

8. 2018 mp7 turbo problems 1 2 3 4 7

   By mackcat12, January 14, 2018
   • 174 replies
   • 41.7k views
   • 
   • fjh
   • March 12, 2020

9. 235 Swap 1 2 3 4 7

   By Full Floater, October 1, 2022
   • 158 replies
   • 12k views
   • 
   • Joey Mack
   • June 20, 2023

10. Compression test with Tech Tool 1 2 3 4 7

    By Dan107, February 18, 2022
    • 151 replies
    • 14.6k views
    • 
    • Dan107
    • March 1, 2022

11. Cylinder pressure out intake port 1 2 3 4 6

    By ChallengeDave, December 1, 2022
    • 138 replies
    • 10.5k views
    • 
    • D,Perkins, Austech Engines
    • April 15

12. Rebuilding my Triplex 1 2 3 4 6

    By Freightrain, January 6
    • 137 replies
    • 5.8k views
    • 
    • mrsmackpaul
    • March 31

13. Adding a Jake Brake to an E-tech? 1 2 3 4 6

    By gumbiegumbie, September 18, 2011
    • 125 replies
    • 21.1k views
    • 
    • tractor
    • July 6, 2022

14. Oil pressure 1 2 3 4 5

    By IGV, April 8, 2023
    • 118 replies
    • 8.6k views
    • 
    • IGV
    • April 27, 2023

15. 460 aset no start 1 2 3 4 5

    By SLEDOG, December 4, 2021
    • 115 replies
    • 9.2k views
    • 
    • SLEDOG
    • December 8, 2021

16. Low to mid rpm ticking sound 1 2 3 4 5

    By R.E.D, November 12, 2021
    • 114 replies
    • 11.3k views
    • 
    • R.E.D
    • September 3, 2022

17. 13 speed Fuller 1 2 3 4 5

    By Casper1988, June 19, 2017
    • 111 replies
    • 20.3k views
    • 
    • Ceus 19766
    • January 30, 2019

18. Dynatard 1 2 3 4 5

    By mackone, January 23, 2023
    • 100 replies
    • 9.3k views
    • 
    • fjh
    • January 22

19. 1974 RD685 Dump. Please help with frame and jake issues 1 2 3 4

    By nedly05, November 11, 2012
    • 99 replies
    • 14.2k views
    • 
    • 2stacksuperdog
    • February 4, 2013

20. 1979 ENDT 675 camshaft 1 2 3 4

    By RS Disposal, May 5, 2024
    • 98 replies
    • 6k views
    • 
    • fjh
    • May 25, 2024

21. 300 in a B model 1 2 3 4

    By Freightrain, September 21, 2015
    • 98 replies
    • 14.3k views
    • 
    • farmer52
    • October 16, 2015

22. Clutch swap 1 2 3 4

    By Nathanwhit1, April 3
    • 96 replies
    • 2.5k views
    • 
    • cruiseliner64
    • April 19

23. AI-460 cutting out 1 2 3 4

    By SLEDOG, October 27, 2022
    • 94 replies
    • 5.4k views
    • 
    • Joey Mack
    • October 31, 2022

24. 4v vs 2v interchangeability 1 2 3 4

    By Macktruckman, August 16, 2023
    • 91 replies
    • 5.6k views
    • 
    • Macktruckman
    • October 18, 2024

25. Engine rebuild on a '53 B-61T: END673 1 2 3 4

    By Keith S, December 25, 2023
    • 90 replies
    • 6.1k views
    • 
    • mowerman
    • January 1, 2024