Clark C500 SERIES:
upgrade propane system

Hello guys. I just bought a clark with a d155g motor. Unit only runs with choke partially out and when if runs, it revs pretty high, and when you put it in forward or reverse, it almost dies. I put new plugs in it, and it is getting nice blue spark. I am pretty sure it is in fuel system, but am pretty sure parts are obsolete or close to it. Has anyone upgraded the propane system to a impco regulator and carburetor system? Is this the way to go or is it better to just work with what you have. Any advise would be helpful. Thanks
  • Posted 12 Jan 2014 11:47
  • Discussion started by Toolman
  • Ontario, Canada
Showing items 1 - 4 of 4 results.
Matt Nolff at PNG Technologies is where we usually purchase LP upgrade kits from- unless it's a Toyota 4Y engine which we source from TVH.
  • Posted 2 Feb 2014 02:37
  • Reply by Forkliftt
  • Louisiana, United States
Steve
steve at forkliftt dot com
Thanks for the reply. I have found a kit at Century Fuel products that will upgrade the propane systems to a newer system. Does any one have any experience with this company? Does anyone know a place in Ontario that will sell a kit like this. Thanks again for all your helpfulness.
  • Posted 14 Jan 2014 10:24
  • Reply by Toolman
  • Ontario, Canada
If the engine only runs with the choke partially pulled then the LP system needs service. You are correct that the parts for your system are getting harder & harder to get- upgrading to an Impco system really is your best bet. Newer versions of the C500 series came stock with the Impco system so converting it to that system is fairly easy.
  • Posted 14 Jan 2014 09:25
  • Reply by bbforks
  • Pennsylvania, United States
bbforks (at) Hotmail (dot) com
Customers love technology- until they have to pay to fix it!
have you done a valve job, or at least adjusted the valves?
what you describe seems like low vac.
  • Posted 12 Jan 2014 23:03
  • Reply by edward_t
  • South Carolina, United States
"it's not rocket surgery"

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