Quantcast
Jump to content


Recommended Posts

Posted

2015 750 challenger crew... 

timing chain broke. Replaced the timing chain, cam, rings & oil pump chain. Ran for 2 hours great, next day started it and halfway up my drive it started running rough, stopped & it died! Restarted it drove home & parked it, died again. Next day it wouldn’t even start. Bought a new plug, drained all the fuel & put in a new ecu. Started up ran great for an hour straight shut it down, next day started again & ran a little rough & then smoothed out for another hour. Next day wouldn’t even start, just cranks!! I’m about done with this machine!! Any thoughts or ideas what’s going on would be greatly appreciated 

Posted

Timing chain broke. Replaced the timing chain, oil pump chain, cam & rings. Ran great for 2 hours. Brought it home, started & drove to the shop. Next day started & drove around the property and it started running rough, wouldn’t idle just died, restarted & took it to the shop. Next day wouldn’t even start just crank over. Drained all the fuel & replaced with new, bought a new plug & ecu! Fired right up and let it run for an hour & burped the coolant as I had double checked the timing & valves prior. Next day started it and it was running a bit rough but smoothed out & ran for another hour. Next day it just cranks & won’t start! I’m at my wits end with this machine and would appreciate any help or suggestions on what might be the issue. Thanks in advance! 
 

Brad

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Similar Topics

    • By Prepper
      I'm working with a 2015 MSU-500.  Basic symptoms are it cranks well, but will not fire.  It has spark, and it has fuel spraying out of the injector (and spraying starting fluid into the throttle body and plug hole makes no difference).  It has compression.  I bought it not running, and no other information was available.  It has 775 miles on it and 127 hours.  It looks to be in very good shape.   Previous owner replaced fuel pump, ECU, coil, plug, and the fuse/relay box that mounts on the firewall, then gave up.
      My questions relate to cam/valve timing, considering the symptoms and diagnostics so far.  My thinking was the woodruff key sheared off and the crank spun, making it out of time.  My question is, by the pictures attached does anyone have an opinion as to the cam/valve timing being correct?  In the crankshaft picture you can see a timing mark visible.  In the camshaft picture I have arrows directed towards what I think are timing marks (which appear to be exactly 180 degrees from one another).  However, the long arrow in what appears to be bolt configuration in line with the piston/rod line.  Here is a puzzling note... in the position you see in the pictures... I have valve lash on both the intake and exhaust.  I think it's at TDC, given the visible crank timing mark and valve lash on both valves. 
      Any thoughts ?  Does this appear to be in proper valve time ?  Have I missed anything simple ?  Thanks in advance for your input.


    • By Gary Odom
      Noticed the radiator reservoir has a pin hole leak at the seam. unit has less than 600 miles. Anyone else have this issue.
    • By mcraigchr
      Howdy y'all,
      I have the service manual, but it leaves me with questions.
      1)  It is time to change the diff fluid.  The service manual says 80w-90 for the rear and Dextron 3 ATF for the front!  Is that correct?  That seems odd to me.
      2) The service manual also speaks of the need to change the transmission fluid but gives no detail about it.  What needs to happen here?
      3). The service manual also discusses changing the final drive fluid with 80-90 Hypoid.  Is the final drive actually the tranny?
      Any details about the changing of the fluid or what fluid to use ... or even other things that need to be changed that the manual does not mention would be appreciated.
      Thanks,
      Craig C.  
    • By Jim Kessell
      Hi All
      Just installed a predator 670 on my Landmaster. My question is can I remove the low oil pressure wire fitting and plumb my mechanical gauge into that access point?
      Thanks in advance for your advice !!
      Jim
    • By bms stallion owner
      hello, my BMS Stallion 600 is having accleration issues. the manual fails to show final gear oil diagrams very well... I have the owners manual and suspect issue is associated to transmission , I want to check the level of the gearoil. I located a drain plug (but not the fill plug nor dipstick). It will run - but wont exceede 2mph. Troubleshooting suggestions or comprehensive manual suggestions? Thanks
×
×
  • Create New...