{"id":319,"date":"2010-09-08T13:18:29","date_gmt":"2010-09-08T13:18:29","guid":{"rendered":"http:\/\/idostuff.co.uk\/blogs\/?p=319"},"modified":"2012-07-02T13:16:21","modified_gmt":"2012-07-02T13:16:21","slug":"two-wheel-tractor-intermediate-technology","status":"publish","type":"post","link":"https:\/\/idostuff.co.uk\/blogs\/2010\/two-wheel-tractor-intermediate-technology\/","title":{"rendered":"Two Wheel Tractor, Intermediate Technology"},"content":{"rendered":"

This is one of those projects born out a few cans of beer.\u00a0 Briefly I need to be able to tow\u00a0a trailer in and out of the woods and\u00a0to tow logs about.<\/p>\n

I had thought of a salvaged four wheel drive car, but its more than\u00a0I need and too big to get\u00a0everywhere in the woods.\u00a0 A small tractor would be nice but even second hand they aren’t cheap. I came across the two wheel tractor concept, basically a rotovator without the tines, I’ve been bidding on ebay for months but the prices or distance to collect have been silly.<\/p>\n

So lateral thinking kicked in. Make my own. Two off road\u00a0wheels powered by a bike engine. I’d got the bike, my old CB 100 N that I passed my test on. But not the wheels. Right, how can I\u00a0make it Scrap heap\u00a0Challenge style, scavenging from my own\u00a0or friends personal stocks of bits. The wheels, I decided can\u00a0be the bike wheels with low ground pressure, wooden treads\u00a0<\/p>\n

So the plan, no drawings, no messing about, as quick as I can.\u00a0 I’ve not clearly thought\u00a0how I can drive it but it will have plenty of torque, using a half shaft to lower the gear ratio and wood treads fixed to bike wheel rims. It’s a shame I can’t think of an easy way of reversing it but hey-ho, as Dave pointed out\u00a0” you can push it”.<\/p>\n

So here’s the donor bike –<\/p>\n

\"CB100n<\/a>

My first bike, sat in various garages for years, I knew it would come in for something<\/p><\/div>\n

Stripped down to what I need. Anyone need some vintage\u00a0motorbike bits?<\/p>\n

\"Stripped<\/a>

The bare essentials for the power unit<\/p><\/div>\n

I checked the Haynes book of lies, I should only the need the power from the alternator, rectifier and coil to run the engine. If I think on maybe a switch would be good idea, Safety first and all that.<\/p>\n

Next bit took some thinking about, connecting the wheels. Easy\u00a0with a solid shaft but that would mean a set bearings I’ve not got spare.\u00a0 So I made a shaft from tube and welded the wheel nuts in each end.\u00a0That means I can use the existing wheel bearings and use the existing wheel bolt to fix\u00a0them to a much modified\u00a0no longer “Swing\u00a0arm” and have the chain adjusters in place.<\/p>\n

\"Motorbike<\/a>

Wheels joined in line, almost<\/p><\/div>\n

Next is to\u00a0attach a new drive sprocket. The original drive sprocket will be on one end of the half shaft to match the pitch of the engine sprocket.\u00a0 The new sprocket comes from a\u00a0CB550 wheel and I’ve got a\u00a0engine sprocket to match for the other end of the half shaft.<\/p>\n

The\u00a0CB550\u00a0sprocket is modified with four nuts welded on to CB100 wheel<\/p>\n

\"Sprocket<\/a>

Drive bodging sprocket to wheel - sprocket to drive shaft<\/p><\/div>\n

To take the drive over to other wheel, I’ve got a piece of tube going over the connector tube. This locates on the drive\u00a0sprocket with four bolts on bits of bar.<\/p>\n

\"drive<\/a>

Start of the drive shaft to brake disc connection<\/p><\/div>\n

The other end of the drive shaft will connect to brake disc. Two bits of square section welded to shaft and two bits of angle welded to the disc. This will need a bit slop in it to account for the wobbly wheel connection.<\/p>\n

That’s it so far, two evenings playing with welder and angle grinder.<\/p>\n

Next part of build – PART\u00a0 2\u00a0now UP<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

So lateral thinking kicked in. Make my own. Two off road wheels powed by a bike engine. I’d got the bike, my old CB 100 N that I passed my test on. But not the wheels. Right, how can I make it Scrap heap Challange style, scavanging from my own or friends personnal stocks of bits.<\/p>\n

So the plan, no drawings, no messing about, as quick as I can. I’ve not cleary though how I can
\n<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[10,147,92,93,145,146,144],"class_list":["post-319","post","type-post","status-publish","format-standard","hentry","category-ido-diy-stuff","tag-alternative","tag-alternative-technology","tag-designs","tag-diy","tag-tractor","tag-two-wheel-drive","tag-two-wheel-tractor"],"_links":{"self":[{"href":"https:\/\/idostuff.co.uk\/blogs\/wp-json\/wp\/v2\/posts\/319","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idostuff.co.uk\/blogs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idostuff.co.uk\/blogs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idostuff.co.uk\/blogs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idostuff.co.uk\/blogs\/wp-json\/wp\/v2\/comments?post=319"}],"version-history":[{"count":11,"href":"https:\/\/idostuff.co.uk\/blogs\/wp-json\/wp\/v2\/posts\/319\/revisions"}],"predecessor-version":[{"id":720,"href":"https:\/\/idostuff.co.uk\/blogs\/wp-json\/wp\/v2\/posts\/319\/revisions\/720"}],"wp:attachment":[{"href":"https:\/\/idostuff.co.uk\/blogs\/wp-json\/wp\/v2\/media?parent=319"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idostuff.co.uk\/blogs\/wp-json\/wp\/v2\/categories?post=319"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idostuff.co.uk\/blogs\/wp-json\/wp\/v2\/tags?post=319"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}