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Porch Pup
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Everything posted by mcratchet1

  1. Just wondering if 75w90 is the right type of gear oil to be using in these diffs I work in northwest Florida 2007 Mack mr688s
  2. Ok thanks, the hole was tapped to fit a heli coil I put one in last night but the bolt for tensioner does not seem to get real tight so I’m worried to death it going to come out. I did not know I could drill a hole bigger in tensioner that might be a great idea heli coil is a 10.5 but od is bigger of course the threaded insert sound better I will try to order some just was wondering if they will last or just do the dang cover thanks for your guys professional help I really appreciate it
  3. Ok main belt was worn time to change grab tensioner was loose tried to tighten nope bolt pulled out with a heli coil around it sob! My question obviously owners before me fixed it with coil. Don’t know why it failed can I do the same or does some know a better repair ? It’s In the aluminum front cover tensioner #21291243 or is only right way to replace entire front cover thanks for any help
  4. Ok thanks for help guys, the scribe arrow was right. Thought that was strange but it worked. Installed, bleed air out and she steers perfect thanks again!!
  5. The pump will not turn enough to align must be the big arrow
  6. So turn it to that small arrow right
  7. Ok that means I would have to turn heat pump 180 degrees to align is that ok
  8. Reman gear has 2 marks but old one only had one and pitman arm only has one! It’s Sunday everything is closed would anyone know the answer please? Which make do I align
  9. Ok thanks for the information I think I’ll just get the reman and be done with it.
  10. 2007 Mack mr688s gearbox is leaking around shaft area. My question is how bad of a job would resealing it be? Instead of buying a reman for $1200 mack part# 8148592SV5R or does anyone have a rebuild manual on gearbox any help would be greatly appreciated
  11. Hey guys I have to replace water pump this weekend just wondering if someone knew torque of bolts? It’s a 2007 mr688s 400 aset engine my first time changing this design. I have done several of the 2000,2001 models where pump sets in bracket. Any advice or heads up in would be greatly appreciated thanks!!!
  12. Yes can follower was in good shape thanks
  13. Sorry it’s a 2007 mr688s aset 400hp
  14. I had a engine miss every once in awhile and got a blink code 8-2 so I changed #2 pump but that did not help same code and a miss that comes and go. Those 2 wires on pump does it matter which lead they go on pump? Thanks
  15. Ok changed unloader valves no change at all. Still popping off every 10 seconds. The air compressor was replaced about 3 years ago. I guess it’s time to change again? Does anyone have any other idea what might be causing this type of problem? thanks!!
  16. My Mack parts guy was able to find an aftermarket just passing info along if anyone needs one too
  17. Ok replaced governor, purge valve, air dryer cartridge, and all 3 lines coming over governor. I cannot find any air leaks but no change purge valve pops off every 10 seconds what else am I missing ?
  18. Ok I replaced air filter cartridge and purge valve will check air lines thanks!!
  19. Hey I have a 2007 mr688s I know there has to be an aftermarket source on this strange hose instead of paying $240 to dealer any help would be greatly appreciate
  20. Great question and I’m not sure on so I’m going to replace it now thanks!!
  21. Also I drain them every night I’m in Florida so still hot here.
  22. I have a 2007 Mack mr688s that’s getting quite a bit of water in air tanks every day also purge valve is popping off about every 15 seconds I’m checking for air leaks now! Is this signs of air compressor failing? thanks!!
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