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 Varidrive pulley

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Hillbilly mowers
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PostSubject: Varidrive pulley    Varidrive pulley  Icon_minitimeJanuary 3rd 2024, 9:44 pm

Guys I have a few questions.i have search everywhere I can and the information that I am needing is how to remove the varidrive pulley and use a double clutch pulley system but I know the transaxle has to be raise in order for the belt to line up right and here the pic of my vari drive pulley. But I'd like have clutch system middle way not so close to the engine pulley so I could swap the engine pulley for more speed Varidrive pulley  Img_2162
Varidrive pulley  Img_2161
The 1st of the double clutch system is what I wanting to change the vari drive pulley out to of a different clutch system
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Brianator
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PostSubject: Re: Varidrive pulley    Varidrive pulley  Icon_minitimeJanuary 3rd 2024, 9:56 pm

The VariDrive Pulley itself has a snap ring on top holding it but if you're ditching it you may as well just unbolt the whole assembly AFTER you remove the springs and be careful because they are VERY strong springs!

You're right you need to raise it, some 1.5"x1.5" or 2"x2" thick walled tubing would work great and be strong!

What trans are you going to be running and how fast you want to go? Need to figure out pulleys in a hurry! Lol


My All Terrain Tractors:
- "The WarHorse" ~ 1984 Sears Craftsman LT(V)11 (MTD Built) (Romping in Progress!)
- Roper "Trailblazer" ~ 1986 Roper LT110CR (Trailblazing in Progress!)
- The "Mud Duck" ~ 1969 Bolens 1225 Hydro (2022 Build Off 2nd place!)
- The "Silver Bullet" ~ 1984 Sears Craftsman LT(V)11 (MTD Built) (Part 1)
- The "Silver Bullet" (Take 2) ~ 2024 Build Off entry (Work in progress)
- Roper "Offroadster" ~ 1979 Roper T4328 (Romping in Progress!)
- 1973 Massey Ferguson MF12 ~ (Sold to a good home)



                             Click Here To See The DIY and Build Threads I've Created!

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Hillbilly mowers
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PostSubject: Re: Varidrive pulley    Varidrive pulley  Icon_minitimeJanuary 3rd 2024, 10:05 pm

@Brianator I want to run the MST 206 but I'd like to git up to at least 30 to 35 if I could or faster cause someday I want to enter my tractor in redzzo2 ttc challenge
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PostSubject: Re: Varidrive pulley    Varidrive pulley  Icon_minitimeJanuary 3rd 2024, 10:30 pm

I have a MST203 (3 speed) that I'm building to hopefully run 35mph, based on a racing mower calculator that no longer exists (of course) I'll be running a 6.5" pulley on the engine and a 4.5" on the trans to get there BUT that's based on MY final drive ratio of the trans, tire size and 3800rpms. I know half size pulleys aren't common but the ratio is almost the same with a 6"/4" combination.

I can only assume your 206 has the same final drive ratio as my 203 but I need you to check and it's really easy! Float the trans so you can spin the pulley by hand without having to chase it around the garage and make sure it's in 6th gear. I like to run a piece of masking tape from the center of the pulley to the outside of the tire to get a good strait line then rip off the tape between them. Then all you have to do is count how many times you have to spin the pulley until the mark on the tire is back to where you started. What I can't remember is if I had to hold the other tire from spinning to get and accurate count or not? On my 203 it was 6.8 turns making it a 6.8:1 ratio.


My All Terrain Tractors:
- "The WarHorse" ~ 1984 Sears Craftsman LT(V)11 (MTD Built) (Romping in Progress!)
- Roper "Trailblazer" ~ 1986 Roper LT110CR (Trailblazing in Progress!)
- The "Mud Duck" ~ 1969 Bolens 1225 Hydro (2022 Build Off 2nd place!)
- The "Silver Bullet" ~ 1984 Sears Craftsman LT(V)11 (MTD Built) (Part 1)
- The "Silver Bullet" (Take 2) ~ 2024 Build Off entry (Work in progress)
- Roper "Offroadster" ~ 1979 Roper T4328 (Romping in Progress!)
- 1973 Massey Ferguson MF12 ~ (Sold to a good home)



                             Click Here To See The DIY and Build Threads I've Created!

                                            ~My Real Hobby Is Collecting Projects!~
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Hillbilly mowers
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Age : 37
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Location : Booneville ky

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PostSubject: Re: Varidrive pulley    Varidrive pulley  Icon_minitimeJanuary 3rd 2024, 10:40 pm

@Brianator thanks man I will check that out for u an let u know tomorrow morning as I didn't on the motor this morning.and the 6" to 4" if that can git me 35 id be happy with that and if I could git more speed that would be a plus cause I'm want something that is unbeatable and and that will hold to redzzo2 ttc competition
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Brianator
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PostSubject: Re: Varidrive pulley    Varidrive pulley  Icon_minitimeJanuary 3rd 2024, 11:26 pm

TTC isn't about speed it's about tackling the impossible and hopefully taking your tractor home in one piece! Lol.

Let me know, you may need a different pulley setup that was just to give you idea.


My All Terrain Tractors:
- "The WarHorse" ~ 1984 Sears Craftsman LT(V)11 (MTD Built) (Romping in Progress!)
- Roper "Trailblazer" ~ 1986 Roper LT110CR (Trailblazing in Progress!)
- The "Mud Duck" ~ 1969 Bolens 1225 Hydro (2022 Build Off 2nd place!)
- The "Silver Bullet" ~ 1984 Sears Craftsman LT(V)11 (MTD Built) (Part 1)
- The "Silver Bullet" (Take 2) ~ 2024 Build Off entry (Work in progress)
- Roper "Offroadster" ~ 1979 Roper T4328 (Romping in Progress!)
- 1973 Massey Ferguson MF12 ~ (Sold to a good home)



                             Click Here To See The DIY and Build Threads I've Created!

                                            ~My Real Hobby Is Collecting Projects!~
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Hillbilly mowers
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Hillbilly mowers
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2024 Build-Off Entrant
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Age : 37
Join date : 2023-10-12
Points : 543
Posts : 293
Location : Booneville ky

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PostSubject: Re: Varidrive pulley    Varidrive pulley  Icon_minitimeJanuary 3rd 2024, 11:33 pm

@Brianator I hear that man. And thank for all the information and I'll sure let u know

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PostSubject: Re: Varidrive pulley    Varidrive pulley  Icon_minitime

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