Replying to Thread:

Engine Idle

Created On Thursday 1, November, 2007 11:40 AM by steinerguy

Please enter your login information to post.
Username:
Password:
I want to stay logged in.

Message Title:

Message Text:

http

https

ftp

mail

hr

highlight

LI Quote

[q]I have a Steiner tractor with a 3 cylinder Kubota diesel. The engine was running full throttle when it idled to 1/4 throttle all at once. It runs smooth, but will not advance past 1/4 throttle. The linkage is fine and nothing appears out of adjustment. The oil level is normal and the filters appear normal as well. Any ideas? Thanks. Steiner Guy[/q]

HTML code is permitted. Special symbols permit some HTML functionality.

steinerguy

Posts: 4
Joined: Nov 2007

Thursday November 01, 2007 11:40
I have a Steiner tractor with a 3 cylinder Kubota diesel. The engine was running full throttle when it idled to 1/4 throttle all at once. It runs smooth, but will not advance past 1/4 throttle. The linkage is fine and nothing appears out of adjustment. The oil level is normal and the filters appear normal as well. Any ideas? Thanks. Steiner Guy

Quote

Top

Bottom

Snafoow

Posts: 79
Joined: Mar 2006

Thursday November 01, 2007 19:23
Check Fuel supply pressure ?

Quote

Top

Bottom

steinerguy

Posts: 4
Joined: Nov 2007

Wednesday November 07, 2007 14:24
I changed the fuel filters, but it did not make a difference. I don't have a means of checking the fuel pressure. Any other thoughts? Steinerguy

Quote

Top

Bottom

Snafoow

Posts: 79
Joined: Mar 2006

Thursday November 08, 2007 21:49

Not familiar with the engine but I would make sure the fuel pump is making it to the full fuel position.

You should be able to disconnect the throttle linkage, at the throttle lever, which is on the fuel injection pump, and manually move the lever to full fuel position and see if the engine revs up.

It is also possible for this fuel pump lever to loosen and slip on the throttle shaft and give you reduced amount of throttle.

Is there any pto controls that limit engine speed on this tractor?

Quote

Top

Bottom

steinerguy

Posts: 4
Joined: Nov 2007

Friday November 09, 2007 16:36
The pump throttle linkage maxs at the factory throttle stop. I will remove the nut from the pivot linkage and see if it has slipped, as you suggested. I put a wrench to it at it was tight, but it still may have slipped. Thanks steiner guy

Quote

Top

Bottom

Snafoow

Posts: 79
Joined: Mar 2006

Friday November 09, 2007 17:50
Also, make sure the shutdown lever has its full travel and is reaching its full on position.

Quote

Top

Bottom

steinerguy

Posts: 4
Joined: Nov 2007

Monday November 12, 2007 19:51

I removed the lock nuts from the engine throttle shaft and the locater pin was positioned correctly on the throttle shaft. Next, I cut the safety wire from the factory stops and adjusted the set screws to max throttle position. The engine did rev higher, but still less than 1/2 throttle. Pressurizing the fuel tank made no difference in engine rpms. Neither did removing the air cleaner system.

No PTO on tractor. Fuel shut off is completely open.

I'm still perplexed.

Steiner Guy

Quote

Top

Bottom

stampsrobbo

Posts: 3
Joined: Jan 2009

Thursday January 29, 2009 13:37
don't know if you have your engine going yet, but it sound like the governor spring came unhook, if you remove your throttle control plate the spring will be under it ------------------------- Robie W Morris

Quote

Top

Bottom

kyhamoge

Posts: 2
Joined: Jan 2013

Friday January 11, 2013 10:21

Hi Steiner Guy,

I came across this discussion and am very curious to know if you were able to resolve your problem with low idle?

I am experiencing the exact same problem with my Kubota diesel engine in my Bobcat skid steer.

Like you, I checked fuel lines, replaced filters, checked throttle linkage, etc. -- no luck

Upon the advice of others smarter than myself, I will attempt to check/replace governor springs.

Any feedback would be most helpful!

Thanks

-------------------------
Daniel M. Brett

Quote

Top

Bottom

[ CATEGORY LISTINGS : THREADS ]

Customer Testimonials

'We've sold a number of engines via DieselEngineTrader.com - even some that we've had lying around for a few years! It's very useful in getting our inventory seen by a much larger market.'

Jackie Read, A J Diesels Ltd, Southampton, UK

'Over 50% of my sales come through DieselEngineTrader.com - I really like the site, it's the best website for advertising my inventory.'

Jim Williams, Diesel Power Train Co., Colbert, WA, USA

'Listed a Perkins T6.354 on DieselEngineTrader and sold it after 5 month. With a listing fee of $5.00 per month and no commission, it was much cheaper and more effective than the magazine we also used.'

Chris Weeks, Old Forge Lake Cruises, New York, USA

Engine Idle

Customer Testimonials

Newsletter