Hi, I've been reading and observing for a few weeks now collecting information as I go. Thanks for the help so far. I have a YM226D with a front loader that I recently inherited that I am working on getting running. It's been sitting outside under a deck for the last 5-10 years untouched until it was given to me by some family. I have a couple issues I am working through and was hoping to get some advice before I start tearing things apart.
So far I've drained and replaced the diesel, changed the fuel filter and bled the lines according to the Hoye site, changed the engine oil and filter, replaced the thermostart glow plug, and spliced in a lower radiator block heater. I have a fresh battery and have been somewhat successful in getting the tractor to start. The colder it is, the harder it is to start and the other day when it was about 20 out even the radiator hose heater wasn't getting it done. I am following the recommended starting procedure with the throttle all the way forward, using the thermostart for 30 seconds two times, pulling the decompression lever and cranking and releasing. once I can get the tractor started I have three main issues.
1. The tractor is leaking engine oil. I have a consistent drip when running that is coming from the weep hole in the bottom of the bell housing. It is not hydraulic oil. Based on my research I believe this would indicate a rear main seal issue but was looking for any other possibilities before I go down that road. It's probably a drip every second or two and not something that I would run as is.
2. Despite all of the posts about Yammer-Hammering I think I have extra noise and it does not sound smooth to me, especially at lower RPM's. I hear inconsistent knocking and not just a smooth diesel rumble like my fathers BX series Kubota.
3. Possibly linked somehow to number 2, I have weird surges and control issues with the RPM's. It will respond to the throttle but not in a consistent manner. If I try to set the tractor at any RPM, within a few seconds it is either dropping in RPM's and stalling or surging and heading to redline. All of my throttle control is over an inch or two of travel and requires constant babying to stay away from redline but not stalling. I have adjusted the throttle friction nut so it is not the throttle sliding up and down. If I hold the throttle in one position I still get the increase or decrease of RPM's. I get some white smoke when cranking and starting but once it is running the smoke goes away. I will get some black smoke if I throttle the RPM's up but only for a second. Any thoughts on what might cause this?
Thanks in advance for any input and I look forward to getting these issues sorted out!
So far I've drained and replaced the diesel, changed the fuel filter and bled the lines according to the Hoye site, changed the engine oil and filter, replaced the thermostart glow plug, and spliced in a lower radiator block heater. I have a fresh battery and have been somewhat successful in getting the tractor to start. The colder it is, the harder it is to start and the other day when it was about 20 out even the radiator hose heater wasn't getting it done. I am following the recommended starting procedure with the throttle all the way forward, using the thermostart for 30 seconds two times, pulling the decompression lever and cranking and releasing. once I can get the tractor started I have three main issues.
1. The tractor is leaking engine oil. I have a consistent drip when running that is coming from the weep hole in the bottom of the bell housing. It is not hydraulic oil. Based on my research I believe this would indicate a rear main seal issue but was looking for any other possibilities before I go down that road. It's probably a drip every second or two and not something that I would run as is.
2. Despite all of the posts about Yammer-Hammering I think I have extra noise and it does not sound smooth to me, especially at lower RPM's. I hear inconsistent knocking and not just a smooth diesel rumble like my fathers BX series Kubota.
3. Possibly linked somehow to number 2, I have weird surges and control issues with the RPM's. It will respond to the throttle but not in a consistent manner. If I try to set the tractor at any RPM, within a few seconds it is either dropping in RPM's and stalling or surging and heading to redline. All of my throttle control is over an inch or two of travel and requires constant babying to stay away from redline but not stalling. I have adjusted the throttle friction nut so it is not the throttle sliding up and down. If I hold the throttle in one position I still get the increase or decrease of RPM's. I get some white smoke when cranking and starting but once it is running the smoke goes away. I will get some black smoke if I throttle the RPM's up but only for a second. Any thoughts on what might cause this?
Thanks in advance for any input and I look forward to getting these issues sorted out!