Discussion:
Hyster H60ft

Working on a Hyster H60ft with a GM 2.4....starts good but it idles a little rough but does not backfire, the spark plugs are seized in the head so I can't check the plugs without pulling the threads out of the head and having to helicoil the holes. Its not throwing any codes, & the engine smooth's out when you get 3/4-full throttle. Have good spark coming out of the coil.....Any idea's on what it could be, lift has 3700 hrs on it.
  • Posted 6 Apr 2017 01:47
  • Discussion started by justin_c
  • Kansas, United States
Showing items 1 - 5 of 5 results.
Good morning Justin, were you able to come up with a solution with your problem
  • Posted 28 Aug 2020 00:26
  • Reply by Mario_Cortez
  • Texas, United States
MARIO
Yes the plugs do need changed but do you think that would be the rough idle issue, a miss would miss at idle or full throttle, it runs rough at idle but smooth's out at 3/4-full throttle
  • Posted 7 Apr 2017 23:41
  • Reply by justin_c
  • Kansas, United States
You have to pull the plugs, no other way around it, you can either get away with just cleaning the holes with a thread chaser or like you said, helicoil, but look at it this way, if it's not the plugs, you will have to pull the head anyway cause it's probably a valve issue. Wouldn't think so at 3700 hrs, we've had some luck by slowly working the plugs in and out while soaking with penetrating fluid , getting a little at a time and thread chasing the holes, and of course applying anti seize on the new plugs,good luck
  • Posted 6 Apr 2017 21:12
  • Reply by steppednit
  • Tennessee, United States
yes it does have injectors, there all new, I forgot to mention that as well as the throttle body is new
  • Posted 6 Apr 2017 06:30
  • Reply by justin_c
  • Kansas, United States
If the plugs have been in for 3700 hours they need changed. Does this engine have fuel injectors?
  • Posted 6 Apr 2017 05:33
  • Reply by BREWSKI
  • Nebraska, United States

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