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1966 110 trans/belt slipping


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#1 Patriot1 OFFLINE  

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Posted February 09, 2016 - 07:42 PM

I just recently acquired a 1966 John Deere with a snow blower. I never noticed the problem right away but as I drove it up my drive way it slowed down to almost nothing, as if the belt was slipping. Is there a tensioner that needs adjusting? I saw a YouTube video that showed adjustment to the variator. I was hoping there might be another place to look before making that adjustment. Are there 2 belts... 1 from the motor and 1 down to the rear-end? I appreciate any info. Thanks a bunch!
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#2 lyall OFFLINE  

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Posted February 09, 2016 - 09:35 PM

ddere 110.png

 

there should also be a spring for the secondary idler

 


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#3 Patriot1 OFFLINE  

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Posted February 09, 2016 - 11:01 PM

attachicon.gifddere 110.png
 
there should also be a spring for the secondary idler


Thats a good start, thank you! Seeings how my tractor is in my cramped shed at the moment, this is a lot easier to look at and get an idea!

#4 Trav1s OFFLINE  

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Posted February 10, 2016 - 12:30 AM

The variator is likely out of adjustment and/or spring if bad.  If you post up the numbers of the serial number SNT10xx-0xxxxx

I can snap pics of the service manual with adjustment info.  They can be a bit of a challenge to get right but are worth the effort.  How are the belts?


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#5 crittersf1 OFFLINE  

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Posted February 10, 2016 - 09:16 AM

Is the belt in good shape?


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#6 Trav1s OFFLINE  

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Posted February 10, 2016 - 10:23 AM

The reason I asked for the serial number is that there are 3 (or 4) revisions on the variator linkage set-up on the RF tractors.  I am pretty sure the final revision started in the '65 model year.  


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#7 Patriot1 OFFLINE  

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Posted February 13, 2016 - 03:11 PM

SNT1031041394M are the numbers. The belts appear to be ok. It starts out good then just slows down. Its almost like there isnt enough tension on the tensioner pully. I removed the "hump" cover under the seat and watched the belt operate. Its like it wasnt pushing down on the belt very well. Thanks guys for all the tips!

#8 Trav1s OFFLINE  

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Posted February 13, 2016 - 03:31 PM

Gotta charge my phone but will get the service info for you.  Have you put any graphite on the variator? 

I went round and round with the '66 110 I owned.  I ended up changing both belts, lubing the shaft in the variator, replacing the tension spring, and adjusting it before the problem was resolved.


Edited by Trav1s, February 13, 2016 - 03:32 PM.

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#9 Patriot1 OFFLINE  

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Posted February 15, 2016 - 11:27 PM

I havent messed with it too much yet. I greased everything and cleaned the carb. Im going to tear into it more this weekend.




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