DK 45 flywheel rubbing starter under a load

   / DK 45 flywheel rubbing starter under a load #1  

intel

Silver Member
Joined
Sep 26, 2008
Messages
171
Location
Fairmont, West Virginia
Tractor
DK 45, 2003
When i have the tractor 490 hours (2003 DK45) under a load the flywheel rubs the starter nose. I have taken the starter off and you can see the signs of the rubbing, It sounds horrible. I suspect thrust bearings are bad on the crank.
The tractor starts fine and runs good.
The flywheel has an offset and the offset part is coming into contact with the starter nose.
They do make a smaller starter without the nose piece (I think).
Any suggestions?
has anyone else ran into this?
should i have rebuilt, trade off, or or new engine

I do not have any confidence in my local dealer.
I really like this tractor and i have worked her hard.
 
Last edited:
   / DK 45 flywheel rubbing starter under a load #2  
Would it help to just use a double or triple gasket between the starter and the bell housing? If this is just a tolerance stack and normal wear issue that may help, at least for a while. The online parts diagram:
OEM Parts
shows two starters (expensive) but I can't tell how they differ.

If you have a serious wear issue/bearing failure, more serious steps will eventually be needed.

Maybe one of the excellent dealers on this list will weigh in.
 
   / DK 45 flywheel rubbing starter under a load
  • Thread Starter
#3  
It might but looks like it could be as much as an 1/8"
 
   / DK 45 flywheel rubbing starter under a load #4  
Pair of pry bars, push front pulley back and forth. If it moves noticeable or says "thunk" when it moves it serious.

What to do? Up to you.......

Joe H
 
   / DK 45 flywheel rubbing starter under a load #5  
I do not have time to check parts, But I am assuming the teeth are cut in to flywheel as opposed to a ring gear installed on flywheel:

Remove starter and use pry bar carefully against the flywheel to check end play. A prior post said front pulley, but would not be conclusive if rear main is bad.

Check engine to bell housing and bell housing to transmission bolts. They should be dowel pined. Should be no movement Make sure at torque. If loose, make sure hole are not enlongated.

If flywheel has a ring gear, remove starter and set a dail indictor on ring gear teeth and role engine over by hand. Note readings. jack up front of tractor. Note readings. Jack up back of tractor and note readings.

I am afraid you have a problem that involves spliting the tractor. I am trying to narrow it down to engine, transmission, ring gear or starter gear.

You also have to decide if you can fix the issue or hire someone to do it. If you are hiring someone compenent, let them diagnos the issue. You are paying by the hour, do not send them on wild goose chases. If they go on your chases, goto someone else. You do not have many hrs. This tractor has been severly abused or a defect in manufucturing. All I have is bad news for you, sorry.





I have had a long day and issues on much bigger equipment. I hope I have thrown out food for thought for others on this forum to narrow where you need to go.
 
   / DK 45 flywheel rubbing starter under a load
  • Thread Starter
#6  
Thanks guys the the flywheel starter teeth is separate ring bolted to flywheel., i will continue to investigate, but it looks like a split the tractor time. I wish i had a good dealer down this way.
 
   / DK 45 flywheel rubbing starter under a load
  • Thread Starter
#7  
with tractor off i took dial indicator and turned the flywheel a complete turn(no runout (not warped)), left dial indicator in place jack front end up tractor still off (used floor jack)) still no change. Jacked back end up still no change.

I could not move the crank via the front puller front or back. Could not much of a bit and did not wont to bend front pulley.
 
   / DK 45 flywheel rubbing starter under a load #8  
   / DK 45 flywheel rubbing starter under a load #9  
Front pully can not take the torque. I was hoping you had enough room to carefully use pry bar on flywheel teeth with dial indicator set up. Still I think you have proved tractor is ridge between engine and transmission and not the problem. It looks like engine torque is deflecting the crankshaft.

Rick Wallace is very knowlegable, and a frequent contributer to this site. I would bounce this off him in a pair of seconds.

Food for thought. I am at sea right now and can not check my tractor. Could you drop oil pan and check and replace main bearings?
 
   / DK 45 flywheel rubbing starter under a load
  • Thread Starter
#10  
Seacap04, I am pretty sure your have to split the tractor to replace the mains, I wish you could drop the pan to replace the mains and thrust bearings, if so i would tackle the project myself. I am studying my service manual and parts manual know.
 

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