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Reload this Page [PICS] Flex Disc - Drive shaft coupler question
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Old 06-03-2010, 09:32 PM
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BajaGTO BajaGTO is offline
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Default [PICS] Flex Disc - Drive shaft coupler question
OK....I got the engine into my 1450/1650 conversion today. (I prefer to refer to it that way, rather than saying I blew up my 14HP and am replacing it with the only thing I could find...a 16HP) anyway...

The drive shaft seems to be off center into the drive shaft coupler on the engine. It appears to be tight, and the race that holds it in appears to be doing it's job. I ran the engine for a few seconds and it didn't seem to wobble too bad. Did I do something wrong, or will the drive shaft eventually work its way towards center with all the vibration?
  #2  
Old 06-03-2010, 09:41 PM
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Add a second rubber disc on the transmission end if there isn't already two there. If there is, put another on the engine end.
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Old 06-03-2010, 09:56 PM
murphycc
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Pic number 3 shows that the shaft is NOT inside the bushing. Take it apart and insert the shaft in the bushing.
Also turn your shaft coupler bolt around so that all the nuts are exposed.

Scott
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Old 06-03-2010, 09:58 PM
murphycc
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Geeezzzz for that matter every pic shows it not inside the bushing!


I'm not sure what you did to accomplish that...tip the motor forward? force the trans in place?...at any rate as it sits your shaft is about 1/2 too long to the pump and it's putting a lot of unnecessary force on the imput shaft of the pump. Do not run it this way.

Further, the correct way to install a shaft in my opinion and in the opinion of the manual is to remove the pins and install the shaft lose and then repin after everything is lined up.....yeah I know......


Scott
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Old 06-03-2010, 10:12 PM
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Good eyes. I didn't see that the first time...I didn't know you could actually get it bolted together like that. That probably isn't possible in anything other than a QL because it the engine mounts give a bit and let the engine tip forward enough.
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Old 06-03-2010, 11:10 PM
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I ran into a similar situation swapping a K301 from a 1250 into my 682 that was previously equipped with a KT17. The original 682 shaft was too short, and wouldn't come close to being inside the bushing. Remedied it with a new, longer drive shaft I made from 5/8" rod, and 2 rubber discs instead of 1...also on the 82 series iso mount and raised engine mount assembly, the holes to mount the engine are slotted a bit to allow for proper alignment...not sure if they are the same on your 14/1650.

Good luck

Jeff (teet)
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Old 06-04-2010, 08:23 AM
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Quote:
Originally Posted by murphycc View Post
Geeezzzz for that matter every pic shows it not inside the bushing!


I'm not sure what you did to accomplish that...tip the motor forward? force the trans in place?...at any rate as it sits your shaft is about 1/2 too long to the pump and it's putting a lot of unnecessary force on the imput shaft of the pump. Do not run it this way.

Further, the correct way to install a shaft in my opinion and in the opinion of the manual is to remove the pins and install the shaft lose and then repin after everything is lined up.....yeah I know......


Scott
I did tip the engine forward in order to slide the drive shaft into place. Not sure of any oter way to get the darn thing in there.

So...I should take the rag joints off on both sides, reinstall the engine side (finger tight I assume), and then install the transmission side?
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Old 06-04-2010, 08:33 AM
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As long as the rear of the driveshaft is seated properly, just unbolt the engine, slide it forward, and then slide it back, and make sure the driveshaft winds up inside the spherical ball bushing instead of jammed up against it.
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Old 06-04-2010, 09:41 AM
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I agree with Matt. I do not agree with Scott on how to properly install a driveshaft. I can't see how beating on the driveshaft while in the tractor is a good thing on the components, when it's pretty much just as easy to do it without beating on anything.

AJ
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Old 06-04-2010, 10:45 AM
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Quote:
Originally Posted by Matt G. View Post
As long as the rear of the driveshaft is seated properly, just unbolt the engine, slide it forward, and then slide it back, and make sure the driveshaft winds up inside the spherical ball bushing instead of jammed up against it.
When I installed the engine I:

1. Mounted it to the modified cradle
2. Tipped the engine in, and 'aligned' the drive shaft
3. Put in the rag joint and finger tightened the bolts
4. Installed ISO mounts and finger tightened them
5. Went around and tigtened all of the ISO mounts to the frame
6. Tightened up front and rear rag joint bolts

Are you saying that I should have installed the cradle and then put in the engine?

How do I gurantee that the holes will line up?
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