Discussion:
Valve lash adjustment spec's for a Cat GC30 6EM

looking for the valave lash adjustment for a Cat GC30 6EM s/n not sure if its an 4G63 or 4G64 engine but is an LP fuel. Thanks
  • Posted 22 Apr 2014 01:38
  • By cownd
  • joined 18 Feb'06 - 189 messages
  • Arizona, United States
orchidlane29@gmail.com
Showing items 1 - 5 of 5 results.
according to the engine service manual on this 6EM truck there is no valve adjustment. It has lash adjusters in the rocker arms that are preset to deal with any valve lash. Basically they are hydraulic like was mentioned.
When dealing with these during dissassembly or reassembly they should be kept clean free from any dirt. Use Diesel fuel to clean them according to the manual.
  • Posted 23 Apr 2014 21:12
  • By swoop223
  • joined 23 Mar'12 - 3,691 messages
  • North Carolina, United States
You've been swooped!
swoop223@gmail.com
Thanks jeremy, I was thinking of the smaller motors. It has hydraulic adjusters in the rockers.
  • Posted 22 Apr 2014 20:39
  • By mrfixit
  • joined 11 Dec'08 - 1,434 messages
  • New York, United States
the number is stamped on the side of the block, no valve lash adjustment needed.
  • Posted 22 Apr 2014 13:10
  • By jeremy_s
  • joined 28 Mar'08 - 205 messages
  • California, United States
thank you
  • Posted 22 Apr 2014 06:24
  • By cownd
  • joined 18 Feb'06 - 189 messages
  • Arizona, United States
orchidlane29@gmail.com
4G64 motor.006 intake.010 exhaust engine hot
  • Posted 22 Apr 2014 06:20
  • By mrfixit
  • joined 11 Dec'08 - 1,434 messages
  • New York, United States

Post your Reply

Forkliftaction accepts no responsibility for forum content and requires forum participants to adhere to our rules of conduct. Click here for more information.

If you are having trouble using the Discussion Forums, please contact us for help.

Latest job alerts …
Tacoma, WA, United States
Orlando area, United States
Highland, IL, United States
Hangcha CBD15
China
Used - Sale
USD1,600
Hangcha CPYD25XH21JC
Flesherton, Ontario, Canada
New - Sale
Global Industry News
edition #1244 - 21 August 2025
In our feel good story for the week, we report on a donation from Wisconsin-headquartered Big Joe Forklifts to the University of Wisconsin-Madison’s College of Engineering, after discovering the institution was still using one of its 1960s walkie stackers... Continue reading
Upcoming in the editorial calendar
WIRELESS CHARGING
Aug 2025
MANAGING MIXED FLEETS
Oct 2025