|
PLEASE PATRONIZE OUR SPONSORS!
|
|||||||
 |
|
|
Thread Tools | Display Modes |
|
#1
05-04-2014, 03:22 PM
|
||||
|
||||
Vanguard 18 hp
I have a vanguard 18 and when it warms up the RPM's are all over the map? Where would you suggest to start with this? Any help would be appreciated! Thank you
|
|
#3
05-04-2014, 05:35 PM
|
||||
|
||||
|
Did the problem start suddenly or gradually? Does it actually over rev? Does the speed seems to be normal and predictable while the engine is still cold? If it is simply surging up and down, and not necessarily over-revving, sounds like a lean mixture on the carburetor. Try giving it a little choke and see if that smooths it out. If that is the case, I would check fuel supply and probably suggest that the carburetor needs a good cleaning. It could also be a governor shaft and/or linkage binding, but generally that makes it go way over top governed speed, as Don suggested.
__________________
Matthew B  1972 129 w/hydraulic lift and head light option soon to be repainted
|
|
#4
05-04-2014, 09:26 PM
|
||||
|
||||
|
Thank you
I just acquired this tractor so what is normal I'm not sure yet. I got a chance to run it more today and I think it is just a sensitive governor. With the deck full of heavy grass it runs as smooth as can be it is when it's not working it's butt off that it likes to wonder the map! Thank you for your replies!
|
|
#5
05-04-2014, 10:55 PM
|
||||
|
||||
|
In that case, you are probably looking at a carburetor issue. I think that if you pull the choke just slightly, that will smooth it out. Those carbs are non-adjustable, so everything in that carburetor has to be just so in order for it to run properly. A casual observation inside the carb will probably tell you that everything is OK. However on more careful observation, you will find that there is a varnish build up particularly in the area of the emulsion tube and the main jet. That must be clean. If you find a white almost powdery film in there, that is evidence that ethanol has begun to take its toll on the carb. A proper cleaning will probably get you back in shape. Also, a little looseness in the governor linkage can cause some of the same symptoms. Feel free to ask if you have more questions.
__________________
Matthew B 1972 129 w/hydraulic lift and head light option soon to be repainted
|
|
#6
05-04-2014, 10:59 PM
|
||||
|
||||
|
Thanks
That could easily be the case. I picked the tractor up for free and it had been standing for quiet a while so that is very believable. Thanks for the answers!
|
|
|
|
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
