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What Does The Trunion Do On The Hydro Pumps?

cub cadet trunion 1450

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#1 CubHorse80 OFFLINE  

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Posted January 17, 2013 - 01:04 PM

What does that trunion thing do on the cub hydros?



#2 LTD OFFLINE  

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Posted January 17, 2013 - 01:50 PM

Makes your ride smooooth as silk. When it gets worn the hydro will start picking up speed going downhill and losing it going up. Most of them need to be repaired after 40 years.


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#3 CubHorse80 OFFLINE  

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Posted January 17, 2013 - 02:00 PM

so if mine jerks forward quickly downhill and engine struggles up hill, it needs to be replaced?



#4 Amigatec OFFLINE  

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Posted January 17, 2013 - 02:14 PM

Just repaired. I did this to CC149, it really isn't that hard to do.

I'll post the pics later.

Edited by Amigatec, January 17, 2013 - 02:15 PM.

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#5 JDBrian OFFLINE  

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Posted January 17, 2013 - 05:36 PM

Have you checked your linkage. If there is slack in it you will get jerky hydro operation as well. 


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#6 LTD OFFLINE  

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Posted January 17, 2013 - 06:59 PM

so if mine jerks forward quickly downhill and engine struggles up hill, it needs to be replaced?

You can build the trunion up with weld and file down to the correct specs. again.

 

OR you can buy a new piece and weld it on. Here. http://www.xtrememot...arts Engine.htm


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#7 CubHorse80 OFFLINE  

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Posted January 17, 2013 - 08:30 PM

that dont seem too hard... Also, when i fill the hydro, do i just drain and fill the rear case with hydro fluid? od does the back take gear oil and the front hydro? im not quite sure about that...



#8 CubHorse80 OFFLINE  

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Posted January 17, 2013 - 08:35 PM

You can build the trunion up with weld and file down to the correct specs. again. 

 

OR you can buy a new piece and weld it on. Here. http://www.xtrememot...arts Engine.htm

im getting a muffler welded next week, so ill get that welded when im there... i dont weld



#9 IHCubGuy OFFLINE  

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Posted January 17, 2013 - 09:13 PM

The fluid is the same in everything because the rearend in them is also the sump for the hystat system.



#10 CubHorse80 OFFLINE  

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Posted January 17, 2013 - 09:45 PM

The fluid is the same in everything because the rearend in them is also the sump for the hystat system.

Thanks for letting me know!

 

I checked trunion, its fine, only little tiny grooves on outside side, towards left wheels. No slop though... also, how do i know if the iso mounts are bad? are they if the whole front end shakes and the dash shakes like a leaf?



#11 IHCubGuy OFFLINE  

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Posted January 17, 2013 - 10:19 PM

The iso mounts were not one of IH's brighter ideas.  Once upon a time I had a 1450 and even after replacing them and doing the engine cradle upgrade it still had a slight case of the shakes.  They can be replaced with new ones and still have some shake in the tractor.  As for knowing if they are bad or not you just need to look at them.  I would say its probably best to just replace them unless they look real good. 



#12 CubHorse80 OFFLINE  

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Posted January 18, 2013 - 08:51 AM

On ebay, someone is selling custom machined steel iso mounts, so basically it bypasses the stupid mounts with solid steel blocks. Mine look pretty good, i think im gonna take engine off and see if they are bad. i will post pictures of them...



#13 CubHorse80 OFFLINE  

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Posted January 18, 2013 - 11:50 AM

The fluid is the same in everything because the rearend in them is also the sump for the hystat system.

Can i use any other brand of hydro fluid other than the cub cadet? I dont wanna pay $12 for a quart when i can get 5gal for 33$. is is absolutely nessicary to get the cub stuff? or can i get tractor supply brand. i think its mystic and traveller...



#14 LTD OFFLINE  

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Posted January 18, 2013 - 12:13 PM

Can i use any other brand of hydro fluid other than the cub cadet? I dont wanna pay $12 for a quart when i can get 5gal for 33$. is is absolutely nessicary to get the cub stuff? or can i get tractor supply brand. i think its mystic and traveller...

  You can use other oil, but you will notice a difference in hydro response from using a generic brand of oil. I personally would use hytran, but that is up to you.



#15 CubHorse80 OFFLINE  

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Posted January 18, 2013 - 01:27 PM

  You can use other oil, but you will notice a difference in hydro response from using a generic brand of oil. I personally would use hytran, but that is up to you.

 

How much of a difference?







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