|
PLEASE PATRONIZE OUR SPONSORS!
|
|||||||
 |
|
|
Thread Tools | Display Modes |
|
#1
10-18-2019, 02:53 PM
|
|||
|
|||
Kubota D640 black smoke
I have a 1782 with a Kubota D640. Engine will barely run and belches HEAVY black smoke. The injection pump was faulty and has been replaced with a rebuilt unit. Injectors have been rebuilt as well. Also the throttle seems to have no effect on engine speed. I'm not sure where to look next. Any help would be greatly appreciated!
Also does anyone know where I could download a sevice manual for this engine? 
|
|
#2
10-18-2019, 03:23 PM
|
|||
|
|||
|
First, welcome to OCC............
 Don't have the Service Manual for the D640, but we do have one for the D600. It is here........... D600
__________________
[B]Roland Bedell[/B] CC Models: 100, 105, 1450, 782, (2) 784, & 2072 [SIZE="4"][B][COLOR="Red"]Buy:[/COLOR][COLOR="Blue"] Made in the USA[/COLOR][/B] [/SIZE]:American Flag 1:
|
|
#3
10-18-2019, 03:39 PM
|
||||
|
||||
|
Take the air cleaner out and try it. Black smoke is un-burned fuel. A restricted air filter can cause this.
Next I would question timing. After that I would start looking into compression. Edit. Is this a turbo charged model?? A bad turbo will also cause the condition you mentioned.
__________________
Cooperino 100, 104,125, 126, 2x129's, 804, 1211, 1641
|
|
#4
10-18-2019, 09:15 PM
|
|||
|
|||
|
First off, thanks for the input!
Been running this in a clean environment with the air cleaner off. I will pull the injectors and do a compression test tomorrow. Would like a service manual to know the specs. BTW, valve clearance was adjusted (some were way off) and didn't change anything. I'm wondering why the throttle lever doesn't have any effect? Maybe engine doesn't get up to speed for the governor to take effect?
|
|
#5
10-18-2019, 09:18 PM
|
||||
|
||||
|
Quote:
__________________
Cooperino 100, 104,125, 126, 2x129's, 804, 1211, 1641
|
|
#6
10-18-2019, 09:23 PM
|
|||
|
|||
|
Also I would need a manual to check injection timing, but the camshaft has never been touched. It is a normally aspirated engine.
|
|
#7
10-18-2019, 09:26 PM
|
|||
|
|||
|
Got the pump from grainfarmer.com in montana
|
|
#8
10-18-2019, 09:50 PM
|
||||
|
||||
|
Quote:
__________________
Cooperino 100, 104,125, 126, 2x129's, 804, 1211, 1641
|
|
#9
10-18-2019, 10:14 PM
|
|||
|
|||
|
Apparently exactly the same. Major loss of power and alot of black smoke. BTW, I got it given to me from a friend who just got tired of trying to figure it out. I will see it run properly again, hopefully with a little help from more experienced people! Also, got a manual for a D600 thanks to " R Bedell". It seems to be nearly identical.
|
|
#10
10-18-2019, 11:17 PM
|
||||
|
||||
|
sounds to me like a pumpshaft/camshaft/crankshaft timing issue or a stuck rack in the governor. Using your shop manual, go thru all the timing procedures shown for the governor to pump (rack) and if needed check all of the gear train for proper timing. You have eliminated all the other possibilities.
__________________
149, 2072, Original, 1772, 1782, #1 cart, Parker 48" sweeper,
|
|
|
|
Cub Cadet is a premium line of outdoor power equipment, established in 1961 as part of International Harvester. During the 1960s, IH initiated an entirely new line of lawn and garden equipment aimed at the owners rural homes with large yards and private gardens. There were a wide variety of Cub Cadet branded and after-market attachments available; including mowers, blades, snow blowers, front loaders, plows, carts, etc. Cub Cadet advertising at that time harped on their thorough testing by "boys - acknowledged by many as the world's worst destructive force!". Cub Cadets became known for their dependability and rugged construction.
MTD Products, Inc. of Cleveland, Ohio purchased the Cub Cadet brand from International Harvester in 1981. Cub Cadet was held as a wholly owned subsidiary for many years following this acquisition, which allowed them to operate independently. Recently, MTD has taken a more aggressive role and integrated Cub Cadet into its other lines of power equipment.
This website and forum are not affiliated with or sponsored by MTD Products Inc, which owns the CUB CADET trademarks. It is not an official MTD Products Inc, website, and MTD Products Inc, is not responsible for any of its content. The official MTD Products Inc, website can be found at: http://www.mtdproducts.com. The information and opinions expressed on this website are the responsibility of the website's owner and/or it's members, and do not represent the opinions of MTD Products Inc. IH, INTERNATIONAL HARVESTER are registered trademark of CNH America LLC
All material, images, and graphics from this site are the property of www.onlycubcadets.net. Any unauthorized use, reproductions, or duplications are prohibited unless solely expressed in writing.
Cub Cadet, Cub, Cadet, IH, MTD, Parts, Tractors, Tractor, International Harvester, Lawn, Garden, Lawn Mower, Kohler, garden tractor equipment, lawn garden tractors, antique garden tractors, garden tractor, PTO, parts, online, Original, 70, 71, 72, 73, 76, SO76, 80, 81, 86, 100, 102, 104, 105, 106, 107, 108,109, 122, 123, 124, 125, 126, 127, 128, 129, 147, 149, 169, 182, 282, 382, 482, 580, 582, 582 Special, 680, 682, 782, 782D, 784, 800, 805, 882, 982, 984, 986, 1000, 1015, 1100, 1105, 1110, 1200, 1250, 1282, 1450, 1512, 1604, 1605, 1606, 1610, 1615, 1620, 1650, 1710, 1711, 1712, 1806, 1810, 1811, 1812, 1912, 1914.
Linear Mode
