Engine and Transmission

6,539 topics in this forum

1. Thermostat wanted

   By Doug T B42X, October 19, 2021
   • 0 replies
   • 696 views
   • 
   • Doug T B42X
   • October 19, 2021

2. Maxitorque Problem

   By Scott74, October 13, 2021
   • 11 replies
   • 2.4k views
   • 
   • mrsmackpaul
   • October 16, 2021

3. 88 4 valve no start. 1 2

   By 63BMack, September 29, 2021
   • 30 replies
   • 4.3k views
   • 
   • fjh
   • October 15, 2021

4. 673 or 237 ID

   By TJ'S Truck, February 1, 2020
   • 5 replies
   • 2.2k views
   • 
   • 63BMack
   • October 14, 2021

5. Oil change requirements 1959 B61 w/711

   By 1959MackB61, March 17, 2019
   • 5 replies
   • 2.7k views
   • 
   • Brian D
   • October 14, 2021

6. 05 mack cxn e7 EGR

   By Xach, October 9, 2021
   • 10 replies
   • 3.4k views
   • 
   • Joey Mack
   • October 13, 2021

7. Clutch fan humming

   By mcratchet1, October 12, 2021
   • 2 replies
   • 899 views
   • 
   • mcratchet1
   • October 13, 2021

8. Fuse diagram needed

   By Gravelguy413, October 12, 2021
   • 0 replies
   • 600 views
   • 
   • Gravelguy413
   • October 12, 2021

9. Turbo Q

   By Gravelguy413, October 9, 2021
   • 9 replies
   • 1.7k views
   • 
   • Dirtymilkman
   • October 12, 2021

10. Any issues with Installing mp8 injectors in an mp7?

    By 318Hauling, October 8, 2021
    • 0 replies
    • 639 views
    • 
    • 318Hauling
    • October 8, 2021

11. 2012 MP7 spn 5443 fmi 7 need some advice

    By manolumber, December 9, 2014
    • 7 replies
    • 34.7k views
    • 
    • Toyaa
    • October 8, 2021

12. E7 12L 350hp

    By Jpeyton, October 8, 2021
    • 0 replies
    • 705 views
    • 
    • Jpeyton
    • October 8, 2021

13. E7 Mechanical Engine Miss

    By 67RModel, August 30, 2021
    • 2 replies
    • 1.5k views
    • 
    • Joey Mack
    • October 5, 2021

14. Engine Brake?

    By MACKS, April 24, 2021
    • 24 replies
    • 15k views
    • 
    • MACKS
    • October 3, 2021

15. 2017 MP7 DIED ON ROAD WONT RESTART PUT NEW INJECTORS IN STILL NO START SOUNDS LIKE OUT OF TIME

    By JAMES SMITH, October 1, 2021
    • 0 replies
    • 664 views
    • 
    • JAMES SMITH
    • October 1, 2021

16. 1985 Mack MS250 5.5L engine

    By SJM, September 30, 2021
    • 0 replies
    • 737 views
    • 
    • SJM
    • September 30, 2021

17. 2011 mack cx613 mp8

    By Playinghooky13, September 29, 2021
    • 2 replies
    • 982 views
    • 
    • Playinghooky13
    • September 29, 2021

18. What’s up with the AI 400

    By VBETtucking, September 25, 2021
    • 22 replies
    • 5.9k views
    • 
    • OldRedMack
    • September 29, 2021

19. Fly wheel question from Fuzzy Buzzard

    By Draggin Wagon, September 12, 2021
    • 5 replies
    • 1.6k views
    • 
    • theakerstwo
    • September 28, 2021

20. R686ST Mack 5 speed trans to Eaton 8LL speedometer swap

    By fastboater, September 26, 2021
    • 1 reply
    • 1.2k views
    • 
    • theakerstwo
    • September 26, 2021

21. Mack 13 speed to 18 speed

    By Steve L, September 22, 2021
    • 4 replies
    • 1.5k views
    • 
    • Steve L
    • September 26, 2021

22. 673 injection pump help

    By Mean Green, September 3, 2021
    • 5 replies
    • 1.6k views
    • 
    • Big R
    • September 26, 2021

23. I cant believe this!!

    By Joey Mack, September 20, 2021
    • 14 replies
    • 2.9k views
    • 
    • Onyx610
    • September 23, 2021

24. 2014 Pinnacle Service DEF Light/5mph derate

    By Localhauler, September 3, 2021
    • 5 replies
    • 5.2k views
    • 
    • DHD_Equipment
    • September 22, 2021

25. E7 427 turbo upgrades ?

    By Abryan1019, September 18, 2021
    • 7 replies
    • 3.5k views
    • 
    • Abryan1019
    • September 21, 2021