Puppeteer

Author Topic: Changfa 1115 knocking  (Read 2792 times)

veggie

  • Keep Calm and Start the Lister !
  • Hero Member
  • *****
  • Posts: 843
    • View Profile
Re: Changfa 1115 knocking
« Reply #15 on: September 05, 2023, 09:14:33 PM »

Well, if it uses a hopper cooling system which relies on evaporation and boiling of the water, I suggest temperatures of around 190f to 195f can be expected just below the hopper and around the cylinder head.
- 6/1 GM90 Listeroid - Delco 33si Alternator
- Changfa R175 - Lease/Neville Alternator
- JiangDong R165 Air cooled - 2 kw
- Changfa S195 (Waiting for a project)

dkmc

  • Full Member
  • ***
  • Posts: 248
    • View Profile
Re: Changfa 1115 knocking
« Reply #16 on: September 06, 2023, 08:01:55 PM »
Mike, you might want to read my thread. There's a video of mine running in the posts. Both sound about the same at 1800
Might want to take the pan off & have a look?

https://listerengine.com/smf/index.php?topic=9403.msg109986#msg109986
« Last Edit: September 06, 2023, 08:03:33 PM by dkmc »
Machinist, fabricator, designer, fixer

Mike72

  • Newbie
  • *
  • Posts: 11
    • View Profile
Re: Changfa 1115 knocking
« Reply #17 on: September 19, 2023, 11:48:27 PM »

Well, if it uses a hopper cooling system which relies on evaporation and boiling of the water, I suggest temperatures of around 190f to 195f can be expected just below the hopper and around the cylinder head.

Mine is currently filled with green antifreeze.  What impact will this have on the evaporative cooling?  Is it worthwhile setting up a conventional radiator for cooling?

Mike72

  • Newbie
  • *
  • Posts: 11
    • View Profile
Re: Changfa 1115 knocking
« Reply #18 on: November 30, 2023, 01:11:40 PM »
Anyone have any feedback for me on the use of antifreeze in the hopper of a changfa engine?

veggie

  • Keep Calm and Start the Lister !
  • Hero Member
  • *****
  • Posts: 843
    • View Profile
Re: Changfa 1115 knocking
« Reply #19 on: December 03, 2023, 06:30:01 PM »

From this website:
https://studybuff.com/does-ethylene-glycol-raise-boiling-point/

What happens to the boiling point of water when ethylene glycol is added?
BOILING & FREEZING POINTS Pure water, as you may know, has a boiling point of 212F (100C) and a freezing point of 32F (0C). However, when you create a 50/50 mixture using water and ethylene glycol, the boiling point rises to 223F (106C) and the freezing point lowers to -35F (-37C).


So, your boiling point is now 223F.  Too hot for a diesel in my opinion.
Switch to plain water so that the evaporative effect can cool the engine.

- 6/1 GM90 Listeroid - Delco 33si Alternator
- Changfa R175 - Lease/Neville Alternator
- JiangDong R165 Air cooled - 2 kw
- Changfa S195 (Waiting for a project)

Mike72

  • Newbie
  • *
  • Posts: 11
    • View Profile
Re: Changfa 1115 knocking
« Reply #20 on: December 05, 2023, 12:46:55 PM »
So these engines are unusable in cold climates?  Where I live it is below freezing this time of year.  Are there any other solutions out there that would allow this engine to be stored outdoors and used during winter?

38ac

  • Hero Member
  • *****
  • Posts: 2327
    • View Profile
Re: Changfa 1115 knocking
« Reply #21 on: December 05, 2023, 02:29:34 PM »
Two choices, drain the water when its not being used or remove the hopper and make a plate and use a radiator which is how my stand by set is equipped. Evaporative cooling is no good for an engine that runs long hours unattended as it will consume lots of water. The plate is easy to make and install. If interested I can provide some pics and more information
Collector and horder of about anything diesel

Mike72

  • Newbie
  • *
  • Posts: 11
    • View Profile
Re: Changfa 1115 knocking
« Reply #22 on: December 05, 2023, 04:05:49 PM »
Two choices, drain the water when its not being used or remove the hopper and make a plate and use a radiator which is how my stand by set is equipped. Evaporative cooling is no good for an engine that runs long hours unattended as it will consume lots of water. The plate is easy to make and install. If interested I can provide some pics and more information

Sure, I would appreciate any details.