Author Topic: RPM's and governer  (Read 6217 times)

Ironworks

  • Full Member
  • ***
  • Posts: 178
    • View Profile
RPM's and governer
« on: January 24, 2006, 02:40:50 AM »
I wondered if a 1000 rpm Listeroid can be governed to say 700 rpm's with out any problems?

kyradawg

  • Guest
Re: RPM's and governer
« Reply #1 on: January 24, 2006, 04:19:25 AM »
Peace&Love :D, Darren
« Last Edit: August 03, 2006, 05:51:16 PM by kyradawg »

hotater

  • Hero Member
  • *****
  • Posts: 1557
    • View Profile
Re: RPM's and governer
« Reply #2 on: January 25, 2006, 03:21:16 PM »
That's a thirty percent reduction in speed.  If the flywheels are smaller due to the higher rpm design, then they won't have the same effect on the engine under load.....wonder what else?

I know if I slow my Listeroid to 400 rpm the governor response is much slower and acceleration under load is way different.

My 1000 rpm Mini-Petter vibrates badly at about 600 rpm but smooths out at the higher speed.  Hmmmm.  ???

 Your mileage may vary.
7200 hrs on 6-1/5Kw, FuKing Listeroid,
Currently running PS-Kit 6-1/5Kw...and some MPs and Chanfas and diesel snowplows and trucks and stuff.

kyradawg

  • Guest
Re: RPM's and governer
« Reply #3 on: January 25, 2006, 03:56:24 PM »
  LISTEROIDSUSA Peace&Love :D, Darren
« Last Edit: August 03, 2006, 05:45:06 PM by kyradawg »

EdDee

  • Hero Member
  • *****
  • Posts: 773
    • View Profile
Re: RPM's and governer
« Reply #4 on: October 30, 2015, 08:44:19 PM »
Mine has been governed to around 750rpm for the last 1200hrs and I have had little problems considering the garbage goop I run it on. It took a bit of playing around to find the right spring... I am still not 100% satisfied, but it is more than functional and providing 15hrs of power per day at the moment.... I have found some different springs and I am going to install them quite soon to test it out and see if I can make it better still...

Ed
12/1 750RPM/9HP Roid 5kVA- WMO Disposal/Electricity & Hot Water Gen
12/1 650RPM/8HP Roid 4.5kVa - Demon Dino
Chinese Yanmar - Silent Runner with AutoStart
Classic Komatsu 1963 Dozer/Fergusson 35 Gold Belly ...
Bikes,Cars,Gunsmithing & Paintball...Oh yes, a 5Ha open air Workshop to play in!

SHIPCHIEF

  • Hero Member
  • *****
  • Posts: 728
    • View Profile
Re: RPM's and governer
« Reply #5 on: October 31, 2015, 04:29:42 AM »
I agree with EdDee,
My Ashwamegh 25/2 is a 1000 RPM rated engine, not that it actually coulddo that without braking some mount bolts.
I derated it to about 735 RPM because that's where it ended up after I bought a larger alternator pulley from George B.
The governor was never any good until I followed his or this site on governor up-grades and springs. now it's fine.
Ashwamegh 25/2 & ST12
Lister SR2 10Kw 'Long Edurance' genset on a 10 gallon sump/skid,
Onan 6.5NH in an old Jeager Compressor trailer and a few CCK's

32 coupe

  • Hero Member
  • *****
  • Posts: 531
  • "Doc Johnson" on call !
    • View Profile
Re: RPM's and governer
« Reply #6 on: October 31, 2015, 10:36:47 PM »
I run my 25/2 the same. 1000 derated to about 725 or so.
No problems but I did spend time adjusting timing and linkages.

I thought this 9 year old thread amusing.
Remember Darren ??
How funny !


Gary

Metro 6/1 turning a ST 7.5 KW gen head
Changfa 1115 turning a ST 15 KW gen head
Ashwamegh 2/25
John Deere 110 TBL
New Holland TC 30

"I was sitting here reading this thinking what an idiot you are until I realized it was one of my earlier posts !"

DirtbikePilot

  • Spinning flywheels are cool....
  • Full Member
  • ***
  • Posts: 212
    • View Profile
Re: RPM's and governer
« Reply #7 on: November 04, 2015, 03:23:52 AM »
Electronic governors with solenoid control don't care what speed the engine is running. This is the route I plan to take some day when I get around to rebuilding my witte diesels.
Currently no listeroids, sad........ very sad.....
Just some other antique engines ranging from 40 pounds to 33,000 pounds each.

veggie

  • Keep Calm and Start the Lister !
  • Hero Member
  • *****
  • Posts: 843
    • View Profile
Re: RPM's and governer
« Reply #8 on: November 12, 2015, 08:26:13 PM »

My GM90 Listeroid is rated 8HP @ 900 rpm.
I run it at 450 rpm with no issues, so yes you should be able to run anywhere between 650 and 1000 with no issues.
(Perhaps a lighter spring on the governor may be in order)

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

EdDee

  • Hero Member
  • *****
  • Posts: 773
    • View Profile
Re: RPM's and governer
« Reply #9 on: November 12, 2015, 09:11:54 PM »
Hi guys,

Tested some springs, modded the governor slightly, set the links a bit and got stable running at around 550rpm... If you tweak the links a bit, you can get it quite stable at low revs...

Regds
Ed
« Last Edit: November 12, 2015, 09:22:08 PM by EdDee »
12/1 750RPM/9HP Roid 5kVA- WMO Disposal/Electricity & Hot Water Gen
12/1 650RPM/8HP Roid 4.5kVa - Demon Dino
Chinese Yanmar - Silent Runner with AutoStart
Classic Komatsu 1963 Dozer/Fergusson 35 Gold Belly ...
Bikes,Cars,Gunsmithing & Paintball...Oh yes, a 5Ha open air Workshop to play in!