Jump to content

fjh

BMT Benefactor
 View Profile  See their activity

  • Posts

    5,324

  • Joined

  • Last visited

  • Days Won

    20

 Content Type 

Everything posted by fjh

  1. fjh
    K three cylinders different heads is weird your injector thery may be the next thing maybe have em all tested !🥵 Just to rule it out! Or in!
  2. fjh
    Does the truck have engine brake? In plug for now at the valve cover!
  3. fjh
    👍 either or switch /sender will derate him I know for a fact that torque limit wires rubbed together is a 50 percent cut! Had to chase this once!
  4. fjh
    Its relatively easy to get the floor out why not pull and trace that section anyway! pull the hatch Lots of room to look then long as there's not controls bolted to it!
  5. fjh
    👍
  6. fjh
    if it looks like a duck and smells like a duck just saying! Nail the cylinder down my! suspicion is a bent valve or valve train issue! ! Lack of compression! or a bent rod! But You say it smells like raw fuel ! You could have a sticking injector I suppose! can't hurt to have em pop tested ! or nail it down and swap em! see if it perks up on the dead cyl! relatively simple DYI stuff cheap to do! Just me!
  7. fjh
    so don't ask any more questions of him! I know what its like to have someone breathing down your neck! Make sure he replaces the bolts and make sure to get the cal numbers off the new pumps and their locations if he doesn't have the Mack soft ware!
  8. fjh
    So just a comment on this ! If its a ROBERT bosch manual pump (likely is) identify which cylinder likely number 1 The delivery valve washers are made of copper these have been known to crack and leak by internally ( specially on number one) and cause a miss most noticeable At Idle! Crack fuel lines at the pump till you find one that doesn't change the sound of the engine that will be your culprit ! just something to look for!
  9. fjh
    Good Find and good info Bro! SO , Is this the same as the trim code? or some other function In PTT!? Learned Data Reset? Just askin!
  10. fjh
    Yup and if you insist on changing pumps use new bolts to install! also you need to install Cal codes into the computers brain if he doesn't have the VMAC 3 software on his lap top you my need to go to a shop that does so write down the numbers off the pumps and there location so it can be done!
  11. fjh
    Correct Heinz Just making a point! It does make sense what JoeH stated there how ever they used ATF for years with a direct couple pump with out issue! I think the purpose was monetary at the time! quick and easy and cheaper! Just sayin!
  12. fjh
    The ps pump is engine mounted on mp engines as well I believe are they using engine oil too? just sayin!
  13. fjh
    Can't help there! Sorry! Joey you got a wiring chart?!
  14. fjh
    👍
  15. fjh
    Agree Heinz! re check the set! How ever Fuel knock is pretty distinctive! Harness is a good probability it should be coding out thou! or pin fretting was a common issue!
  16. fjh
    It happens! No evidence of water at any of the connections ? is it derating the truck? If not Drive it! No pyro is not the end of the world!
  17. fjh
    Yup! when you got three you likly got a wiring issue Joey Is all over this Take heed!
  18. fjh
    You can tap it on far enough to get the nut back on won’t hurt anything!
  19. fjh
    Are we back up and running yet?
  20. fjh
    Yes no speedo can derate too!
  21. fjh
    Yes.
  22. fjh
    Not sure on your codes! How ever did you examine the rocker shaft to make sure it wasn't cracked ! It almost sounds as thou the engine brake is on! Or you have a bent valve! Can you identify which cyl it is! Cylinder cut out!after watching the vid My opinion! The smoke is lack of compression smoke! and it sounds like only one cylinder! I would nail down which cylinder first This looks more like a physical issue! Just sayin!
  23. fjh
    Do you have a puter with ptt? that will do a cut out test? cylinder balance test? Jpro?
  24. fjh
    Its on top of the Cylinder on the top rear of the trans!
  25. fjh
    No there’s enough trickle down lube all good! And as you know the lifter is way better!if you could round up a set you wouldn’t look back! The old style was a welded on hard surface I believe the new style is a billet !

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...