All-Terrain Lawn Tractor Forum

Like riding lawn tractors through mud, woods, rocks, and snow? Then this is the place for you! Share your ideas, Post your projects and more!
 
PortalHomeFAQSearchMemberlistRegisterLog inCountdown Timer
Swing by the Chatroom anytime! Chat events held every Saturday, 8pm EST - whenever!
Welcome to the All Terrain Lawn Tractor Forum!
The 2018 Build Off is almost HALF WAY!! Click Here to view 2017 results!
ATLTF sticker shipments will resume soon! View them here, and keep up to date!
The forum is getting a minor face-lift. We hope you like it. Details here: Facelifting the Forum

Share | 
 

 So, You Wanna Ditch Vari-Drive?

Go down 
AuthorMessage
redlinemotorsportts
Moderator
Moderator
avatar

Age : 21
Join date : 2013-03-18
Posts : 3123
Forum Rep : 2
Location : raleigh nc

PostSubject: So, You Wanna Ditch Vari-Drive?   Sun Dec 01, 2013 9:52 pm

I get alot of requests on how to do this, vari drive to a transaxle.

It basically consists of
-Getting a transaxle, and making mounts for it (i have a 5 speed 930 in this swap)
-Making a clutch
-Setting up clutch springs
-Making clutch linkage
-Brake setup
-New shiftier
Its sorta easy when you think about it, you just gotta commit to doing it, not very hard. You have to understand clutch systems, how it disengages, and tightens for more belt grip.

Here's how it should be done.

I started with the clutch, it should be on the slack side of the belt, meaning the left side of the tractor if you are standing in front of it. you want the engine to pull the belt in a straight line, from rear axle to engine, like a tight rope. If you had a clutch there it will loosen the clutch and cause belt slipping. (that's one thing that i did wrong on my conversion.)

First make sure you have a solid mount for your clutch, thick metal will prevent you wearing out the hole you drilled, and the bolt too from it moving in clutching action.


Next you make your clutch, this is how i did mine, seems like the easiest. The two pulleys help each other to tighten the belt. I made this t looking clutch out of plates. then i bought 5/8" bolts for the center of the pulleys i got from tractor supply. I think there 3" each, one v belt, and one flat.



I welded a piece of steel with a hole in it for my clutch spring.


There is a plate in the rear frame rails holding a plastic idler pulley that was originally for the vari-drive rear belt. I cut the pulley section off so it was just a plate. I welded a washer to the bottom of that plate, and welded it in-between the frame rails. The spring connects to a bolt with a nut welded to the end. The bolt goes through the washer and another nut on the other side.


For linkage, i first welded a metal tab onto the foot petal that is a big 5/8" rod. its just one side is a steering rod end, the other end is adjustable, its important it is. I use a rope to check clearances; rope acting like a belt.




Seance you will be buying a new belt, this is a great opportunity to do a pulley swap. i have 4" front, 4" rear. Seance i did my clutch on the other side the belt clears my shiftier rod, but on the other side i don't think that will be so. You might need a idler pulley and a mount to move the belt away from hitting the rod if that's the case.


Now, making a shiftier, there's a few ways of doing it. You can make a shiftier out of the mower deck lever, FearlessFront has a video on it. I have not tried that way. You can make a "nutbuster" shiftier (between the legs) would be the easiest. You just have to cut a hole in the rear fender, and its done. The way i did it was on the right hand side-shiftier. I used a rod that goes through both sides of the chassis, and a cut bolt welded to that rod just to keep it there. Make sure the rod is thick, so it doesn't bend.

Drilled holes in chassis

Rod section



This was welded to the handel bar

Handle though the fender on the side i used


I cut the original shiftier for the axle up, welded a washer to it

And this is were it comes together. The metal piece i'm holding is welded to a washer, a adjustable end goes though that washer, and another steering rod end goes in the axle's shiftier



Setting up brakes is kinda your own decision too. I decided to keep it simple and make a cool hand brake:
In the middle between the red rod pieces is a sleeve around a bolt


Welded a stopper behind the brake arm there and used a chain because it doesn't stretch like a rope.


All you need to do is size a belt now.

I have a YouTube channel chalk FULL of videos of all the pictures you've seen above:

https://www.youtube.com/user/redlinemotorsportts

_______________________________________________
Check out my builds!: MTD "Rock Bouncing" Mower -------- 60's Springfeild V-twin Mini Speed Tractor : SOLD!

ATLTF.com Facebook admin - Forum Mod
whos mans is this
Back to top Go down
Doc Sprocket
Administrator
Administrator
avatar

Age : 45
Join date : 2013-04-21
Posts : 2909
Forum Rep : 15
Location : Ontario Canada

PostSubject: Re: So, You Wanna Ditch Vari-Drive?   Sun Dec 01, 2013 9:58 pm

Good write-up. Thanks for posting!

_______________________________________________
***Get YOUR official "Doc Locked, And Ready To Rock!" Stickers by clicking here!***
***Official Sprocket's Garage vinyl graphics and tees for sale HERE!***

Put down the wrench, and come out with your hands up!-Doc "Tranny Crusher" Sprocket, ATLTF Forum Admin, Thinkerer and Tinkerer, and all-around good dood. Wink

Gen. Mayhem- http://www.atltf.com/t2597-general-mayhem-race-tractor
MULE- http://www.atltf.com/t2153-lawn-boy-utltv
MULEII- http://www.atltf.com/t3328-1970-john-deere-112-the-beginnings-of-mule-ii
MULEIII http://www.atltf.com/t4263-mule3-brainstorming-ideas-etc#58287
Wrench, Wheel, Wreck, Repeat...
Back to top Go down
redlinemotorsportts
Moderator
Moderator
avatar

Age : 21
Join date : 2013-03-18
Posts : 3123
Forum Rep : 2
Location : raleigh nc

PostSubject: Re: So, You Wanna Ditch Vari-Drive?   Sun Dec 01, 2013 10:00 pm

@Doc Sprocket wrote:
Good write-up. Thanks for posting!
No problem, hey- you got some tape so i can put my fingers back together? Razz Wasnt that bad

_______________________________________________
Check out my builds!: MTD "Rock Bouncing" Mower -------- 60's Springfeild V-twin Mini Speed Tractor : SOLD!

ATLTF.com Facebook admin - Forum Mod
whos mans is this
Back to top Go down
Doc Sprocket
Administrator
Administrator
avatar

Age : 45
Join date : 2013-04-21
Posts : 2909
Forum Rep : 15
Location : Ontario Canada

PostSubject: Re: So, You Wanna Ditch Vari-Drive?   Sun Dec 01, 2013 10:10 pm

Krazy glue is pretty effective... LOL

True story- back when I was a teen, I'd occasionally nail myself with the Exacto knife building models- so I would glue the cut closed with Krazy glue. My mother used to give me such hell. "Don't do that! That stuff is toxic!". Flash forward 25 years, and now the hospitals are doing it... LOL

_______________________________________________
***Get YOUR official "Doc Locked, And Ready To Rock!" Stickers by clicking here!***
***Official Sprocket's Garage vinyl graphics and tees for sale HERE!***

Put down the wrench, and come out with your hands up!-Doc "Tranny Crusher" Sprocket, ATLTF Forum Admin, Thinkerer and Tinkerer, and all-around good dood. Wink

Gen. Mayhem- http://www.atltf.com/t2597-general-mayhem-race-tractor
MULE- http://www.atltf.com/t2153-lawn-boy-utltv
MULEII- http://www.atltf.com/t3328-1970-john-deere-112-the-beginnings-of-mule-ii
MULEIII http://www.atltf.com/t4263-mule3-brainstorming-ideas-etc#58287
Wrench, Wheel, Wreck, Repeat...
Back to top Go down
redlinemotorsportts
Moderator
Moderator
avatar

Age : 21
Join date : 2013-03-18
Posts : 3123
Forum Rep : 2
Location : raleigh nc

PostSubject: Re: So, You Wanna Ditch Vari-Drive?   Sun Dec 01, 2013 10:13 pm

@Doc Sprocket wrote:
Krazy glue is pretty effective... LOL

True story- back when I was a teen, I'd occasionally nail myself with the Exacto knife building models- so I would glue the cut closed with Krazy glue. My mother used to give me such hell. "Don't do that! That stuff is toxic!". Flash forward 25 years, and now the hospitals are doing it... LOL
you coulda made bank doing that! LOL
"you'll never make money off of BOTTLED WATER!! BAHAHA!"

_______________________________________________
Check out my builds!: MTD "Rock Bouncing" Mower -------- 60's Springfeild V-twin Mini Speed Tractor : SOLD!

ATLTF.com Facebook admin - Forum Mod
whos mans is this
Back to top Go down
TroyBilt Pony
Veteran
Veteran
avatar

Join date : 2013-06-01
Posts : 578
Forum Rep : 0
Location : West Virginia

PostSubject: Re: So, You Wanna Ditch Vari-Drive?   Sun Dec 01, 2013 10:30 pm

Lol to the both of you. Such a shame to see such a beautiful Vari drive design. I guess the experiences with it vari with the speeds lol
Back to top Go down
redlinemotorsportts
Moderator
Moderator
avatar

Age : 21
Join date : 2013-03-18
Posts : 3123
Forum Rep : 2
Location : raleigh nc

PostSubject: Re: So, You Wanna Ditch Vari-Drive?   Sun Dec 01, 2013 10:42 pm

@TroyBilt Pony wrote:
Lol to the both of you. Such a shame to see such a beautiful Vari drive design. I guess the experiences with it vari with the speeds lol
It was so awesome that you scrapped your mower right?

_______________________________________________
Check out my builds!: MTD "Rock Bouncing" Mower -------- 60's Springfeild V-twin Mini Speed Tractor : SOLD!

ATLTF.com Facebook admin - Forum Mod
whos mans is this
Back to top Go down
TroyBilt Pony
Veteran
Veteran
avatar

Join date : 2013-06-01
Posts : 578
Forum Rep : 0
Location : West Virginia

PostSubject: Re: So, You Wanna Ditch Vari-Drive?   Sun Dec 01, 2013 10:51 pm

@redlinemotorsportts wrote:
@TroyBilt Pony wrote:
Lol to the both of you. Such a shame to see such a beautiful Vari drive design. I guess the experiences with it vari with the speeds lol
It was so awesome that you scrapped your mower right?
My speed selection was broke in 2..
Back to top Go down
redlinemotorsportts
Moderator
Moderator
avatar

Age : 21
Join date : 2013-03-18
Posts : 3123
Forum Rep : 2
Location : raleigh nc

PostSubject: Re: So, You Wanna Ditch Vari-Drive?   Sun Dec 01, 2013 10:53 pm

@TroyBilt Pony wrote:
@redlinemotorsportts wrote:
@TroyBilt Pony wrote:
Lol to the both of you. Such a shame to see such a beautiful Vari drive design. I guess the experiences with it vari with the speeds lol
It was so awesome that you scrapped your mower right?
My speed selection was broke in 2..
bahaha, hey i think you can do more with a axle anyways its just a opinion that i think it works alot better over stock

_______________________________________________
Check out my builds!: MTD "Rock Bouncing" Mower -------- 60's Springfeild V-twin Mini Speed Tractor : SOLD!

ATLTF.com Facebook admin - Forum Mod
whos mans is this
Back to top Go down
TroyBilt Pony
Veteran
Veteran
avatar

Join date : 2013-06-01
Posts : 578
Forum Rep : 0
Location : West Virginia

PostSubject: Re: So, You Wanna Ditch Vari-Drive?   Sun Dec 01, 2013 11:05 pm

Lol, probably more reliable as a peerless.. lol My prob was 5500 rpm and 7 in engine pulley lol
Back to top Go down
Thunderdivine
Seasoned Veteran
Seasoned Veteran
avatar

Join date : 2012-12-21
Posts : 2098
Forum Rep : 0
Location : Norway, Europe

PostSubject: Re: So, You Wanna Ditch Vari-Drive?   Mon Dec 02, 2013 4:27 am

Nice writeup Red.

Is it the same FearlessFront wanted to do with his MTD in yesterdays video? Guess you beat him to it bounce 

_______________________________________________
*Thunderdivine*
My Custom Racing Mower Build
JD210R - Racing Mower, Sidebuild
My Vintage John Deere 110, 1967 model
"Imagination is more important than knowledge." - Albert Einstein
Back to top Go down
Doc Sprocket
Administrator
Administrator
avatar

Age : 45
Join date : 2013-04-21
Posts : 2909
Forum Rep : 15
Location : Ontario Canada

PostSubject: Re: So, You Wanna Ditch Vari-Drive?   Mon Dec 02, 2013 6:00 am

@redlinemotorsportts wrote:
It was so awesome that you scrapped your mower right?
Zing! Hahahahahaha!

_______________________________________________
***Get YOUR official "Doc Locked, And Ready To Rock!" Stickers by clicking here!***
***Official Sprocket's Garage vinyl graphics and tees for sale HERE!***

Put down the wrench, and come out with your hands up!-Doc "Tranny Crusher" Sprocket, ATLTF Forum Admin, Thinkerer and Tinkerer, and all-around good dood. Wink

Gen. Mayhem- http://www.atltf.com/t2597-general-mayhem-race-tractor
MULE- http://www.atltf.com/t2153-lawn-boy-utltv
MULEII- http://www.atltf.com/t3328-1970-john-deere-112-the-beginnings-of-mule-ii
MULEIII http://www.atltf.com/t4263-mule3-brainstorming-ideas-etc#58287
Wrench, Wheel, Wreck, Repeat...
Back to top Go down
redlinemotorsportts
Moderator
Moderator
avatar

Age : 21
Join date : 2013-03-18
Posts : 3123
Forum Rep : 2
Location : raleigh nc

PostSubject: Re: So, You Wanna Ditch Vari-Drive?   Mon Dec 02, 2013 6:55 am

@Thunderdivine wrote:
Nice writeup Red.

Is it the same FearlessFront wanted to do with his MTD in yesterdays video? Guess you beat him to it bounce 
Thanks, I think he wanted to put in a 5 or 6 speed in a mtd with vari drive.

_______________________________________________
Check out my builds!: MTD "Rock Bouncing" Mower -------- 60's Springfeild V-twin Mini Speed Tractor : SOLD!

ATLTF.com Facebook admin - Forum Mod
whos mans is this
Back to top Go down
1997 Murray
Expert
Expert
avatar

Age : 20
Join date : 2013-11-13
Posts : 1311
Forum Rep : 1
Location : NW USA

PostSubject: So, You Wanna Ditch Vari-Drive?   Wed Jan 15, 2014 11:21 am

he did........ but we did it first! now we need a patent!
Back to top Go down
redlinemotorsportts
Moderator
Moderator
avatar

Age : 21
Join date : 2013-03-18
Posts : 3123
Forum Rep : 2
Location : raleigh nc

PostSubject: Re: So, You Wanna Ditch Vari-Drive?   Wed Jan 15, 2014 11:30 am

@1997 Murray wrote:
he did........ but we did it first! now we need a patent!
I think the only time I would patent a mower mod would be for a e-locker for a transaxle lol

_______________________________________________
Check out my builds!: MTD "Rock Bouncing" Mower -------- 60's Springfeild V-twin Mini Speed Tractor : SOLD!

ATLTF.com Facebook admin - Forum Mod
whos mans is this
Back to top Go down
1997 Murray
Expert
Expert
avatar

Age : 20
Join date : 2013-11-13
Posts : 1311
Forum Rep : 1
Location : NW USA

PostSubject: So, You Wanna Ditch Vari-Drive?   Wed Jan 15, 2014 11:36 am

lol. I wonder if anyone knows how a bolens locker works?
Back to top Go down
T-Dub13
Veteran
Veteran
avatar

Age : 48
Join date : 2013-12-06
Posts : 539
Forum Rep : 0
Location : Central MA

PostSubject: Re: So, You Wanna Ditch Vari-Drive?   Wed Jan 15, 2014 11:37 am

Hey Red, can you pop apart the old vari-drive and show us (me) what's inside?  It would be a cool learning experience since I've never seen or heard of one....   Cool

And, really nice work btw. Good "welding rod engineering" there!
Back to top Go down
1997 Murray
Expert
Expert
avatar

Age : 20
Join date : 2013-11-13
Posts : 1311
Forum Rep : 1
Location : NW USA

PostSubject: So, You Wanna Ditch Vari-Drive?   Wed Jan 15, 2014 11:42 am

here:

Back to top Go down
T-Dub13
Veteran
Veteran
avatar

Age : 48
Join date : 2013-12-06
Posts : 539
Forum Rep : 0
Location : Central MA

PostSubject: Re: So, You Wanna Ditch Vari-Drive?   Wed Jan 15, 2014 11:47 am

Thanks! Any better bigger pics? I thought it had a belt inside lol. I know nothing about these but I'm interested in them.  Wink 
Back to top Go down
1997 Murray
Expert
Expert
avatar

Age : 20
Join date : 2013-11-13
Posts : 1311
Forum Rep : 1
Location : NW USA

PostSubject: So, You Wanna Ditch Vari-Drive?   Wed Jan 15, 2014 12:53 pm

no, the belt driving the tranny changes the speed, the tranny is only for changes the direction of the mower.
Back to top Go down
Sponsored content




PostSubject: Re: So, You Wanna Ditch Vari-Drive?   

Back to top Go down
 
So, You Wanna Ditch Vari-Drive?
Back to top 
Page 1 of 1
 Similar topics
-
» So, You Wanna Ditch Vari-Drive?
» Converting a Vari-Drive to a 5 Speed Manual
» 1st attempt at a MTD vari drive and 3 speed manual trans mutation
» MTD Vari-drive + 4 speed tranny?
» Troy Bilt with Pedal Drive/Vari Drive Setup (Best Way to Speed Up?)

Permissions in this forum:You cannot reply to topics in this forum
All-Terrain Lawn Tractor Forum :: Technical Forum :: Drivetrain & Brake Tech :: General Drivetrain Topics-
Jump to: