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Glenn 
Mr. 010
Joined: December 25, 2001
Posts: 76935
Location: Sneaking up behind you
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 Posted: Tue Jan 22, 2019 10:51 am Post subject: Snow Cat tranny |
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Saw this sitting at my friend's machine shop.
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Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
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calvinater
Samba Member
Joined: September 06, 2014
Posts: 3328
Location: 802 The Pointless Forrest
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| Posted: Tue Jan 22, 2019 11:59 am Post subject: Re: Snow Cat tranny |
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Are those some type reduction gear boxes? What are the two forward holes for?
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"Albatross"! |
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mark tucker
Samba Member
Joined: April 08, 2009
Posts: 23937
Location: SHALIMAR ,FLORIDA
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| Posted: Tue Jan 22, 2019 12:48 pm Post subject: Re: Snow Cat tranny |
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to me it just looks like chain drive. you could make your own vw tank with that...for snow plowing or dune playing or....car crusher!!!!  |
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busdaddy
Samba Member
Joined: February 12, 2004
Posts: 51144
Location: Surrey B.C. Canada, but thinking of Ukraine
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71whitewesty
Samba Member
Joined: February 25, 2010
Posts: 1544
Location: oregon
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| Posted: Wed Jan 23, 2019 10:04 am Post subject: Re: Snow Cat tranny |
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Maybe you know this but that’s for an Aktiv Snow Trac snow cat. That is part of the variator to vary the speed of each track so you can turn it. They use a steering wheel vs hand brakes.
I used to have a snow trac and they are super fun and capable snow cats for personal use.
Is the shop rebuilding it for someone? They are hard to find. They only produced about 2500-3000 Snow Tracs.
Here is a picture of the one I used to have.
And here is a picture of the two pulleys that sit on top of those towers.
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71 Westy 1600 DP, all stock Bus 1
1970's Snow Trac 1600 SP (sold 12/2016)
1968 Tucker sno cat, sold 2021
1969 Tucker Sno cat 542
2017 VW Alltrac
71 tin top stock 1600 DP (project but runs)
Twin 71 White Westy, Bus 2, that I pulled from a 15 year slumber in a dry eastern WA field in 2015.
1966 Sundial Camper "Boomer" |
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71whitewesty
Samba Member
Joined: February 25, 2010
Posts: 1544
Location: oregon
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| Posted: Wed Jan 23, 2019 10:06 am Post subject: Re: Snow Cat tranny |
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| calvinater wrote: |
| Are those some type reduction gear boxes? What are the two forward holes for? |
On this picture there should be a couple of towers that bolt on to those holes that hold the two pulleys in my post above.
_________________
71 Westy 1600 DP, all stock Bus 1
1970's Snow Trac 1600 SP (sold 12/2016)
1968 Tucker sno cat, sold 2021
1969 Tucker Sno cat 542
2017 VW Alltrac
71 tin top stock 1600 DP (project but runs)
Twin 71 White Westy, Bus 2, that I pulled from a 15 year slumber in a dry eastern WA field in 2015.
1966 Sundial Camper "Boomer" |
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Ebel
Samba Member
Joined: June 07, 2015
Posts: 564
Location: New york
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| Posted: Wed Jan 23, 2019 3:59 pm Post subject: Re: Snow Cat tranny |
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| Do you know how it controls the steering? I’d guess some sort of brake but how does the wheel control it all? I’m just curious about how it works |
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71whitewesty
Samba Member
Joined: February 25, 2010
Posts: 1544
Location: oregon
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| Posted: Wed Jan 23, 2019 5:53 pm Post subject: Re: Snow Cat tranny |
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| Ebel wrote: |
| Do you know how it controls the steering? I’d guess some sort of brake but how does the wheel control it all? I’m just curious about how it works |
Yes, the pulleys are tapered like a snowmobile belt drive. Each pulley expands or contracts when you turn the steering wheel so the belt runs at different speeds, which varies the speed of each track. No brakes involved and it uses very little horse power to operate which of course is great for our low hp vw engines. The hand brake style uses more horse power.
Also very dependable with not much to wear out as long as things stay lubed. The belt never breaks but eventually will wear too narrow and will need replacement after many many years of use.
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71 Westy 1600 DP, all stock Bus 1
1970's Snow Trac 1600 SP (sold 12/2016)
1968 Tucker sno cat, sold 2021
1969 Tucker Sno cat 542
2017 VW Alltrac
71 tin top stock 1600 DP (project but runs)
Twin 71 White Westy, Bus 2, that I pulled from a 15 year slumber in a dry eastern WA field in 2015.
1966 Sundial Camper "Boomer" |
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71whitewesty
Samba Member
Joined: February 25, 2010
Posts: 1544
Location: oregon
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| Posted: Wed Jan 23, 2019 6:11 pm Post subject: Re: Snow Cat tranny |
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And since we are on the subject of vw sno cats. Did you know that Tucker also experimented with the aircooled vw engines? The two twins on the trailer and the one on the mountain are very rare vw powered Tucker sno cats. There were only about 4 (maybe 6) made. My friends have two of them and I have ridden in them. They work great. These are operated with hand brake levers for steering and are quite capable sno cats.
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71 Westy 1600 DP, all stock Bus 1
1970's Snow Trac 1600 SP (sold 12/2016)
1968 Tucker sno cat, sold 2021
1969 Tucker Sno cat 542
2017 VW Alltrac
71 tin top stock 1600 DP (project but runs)
Twin 71 White Westy, Bus 2, that I pulled from a 15 year slumber in a dry eastern WA field in 2015.
1966 Sundial Camper "Boomer" |
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