Thumper Club Forum
Technical => Bike Problems/Questions => Topic started by: guest18 on July 13, 2009, 07:24:01 PM
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For reasons which I'm not prepared to disclose at the moment(!) I want to find out if there is an easy way to reverse the output of a car gearbox. EG. if I was to rotate the engine horizontally through 180 degrees without modification I would have one forward gear and four reverse, how do I get back four forward and one reverse? ???
(Hillman Imp Transaxle if that is important)
Over to the font of (almost) all knowledge that is the Thumper Club ;D
Answered by the Imp gurus first... turn the transaxle upside down... that'll teach me to look for the complicated answers! lol :-[
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Build in a frame and a mirror ::)
R
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Aye Smudge,
Spotted a nice BRG, Sunbeam model today in Birnam, complete with those alloy wheels. :)
Couldn't possibly imagine what your intentions might be! 8)
Tarra, Bill.
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are you building an italian tank by any chance?
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are you building an italian tank by any chance?
Triking, from down the road Steve. ;)
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Both wrong ;) :D
Still in the ideas and planning stage but if anyone guesses right I'll stand them an evening in the legion ;) :D
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Dive boat motive power! 8)
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Cool thought, and the engines actually were quite popular in hydroplanes for a while, but in terms of my ideas, getting much colder ;)
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Building a plane with a pusher prop.
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Colder - umm a skibike?
4 cyl frappe machine?
A personal sub with 4 gears and CO cabin injection?
R
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Nope nope nope and whaaa? nope!
Doesn't float or fly, (or remain neutrally buoyant Rog ::) ;))
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Some kind of 4wd, twin engined monster?
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Three wheel drive outfit/ trike?
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Still nope and nope ;D ;D ;D
Think outside the box gentlemen!
I'm considering a return to the (whisper it) Elefantentreffen in a year or two..... and that's as much of a clue as you're getting :D
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A front wheel drive, imp powered trike?
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A petrol driven industrial capacity, 4 gear icecream maker - sets up stall selling icecream at Elefantreffan to warm people up slowly
A transcontinental kneeler
A transcontinental FF combo
R
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Nope, nope... nope.... hmmmm warmer.... :o
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Oooh going FF are we?
A rotovator, a strimmer for really stubborn brambles.
A female pleasure device for trefenating a frustrated she elephant - The Elephantentreffen
R
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To make the drive go backwards you need to put the crown wheel on the other side of the pinion. On the old Scammel truck axle could do this my misteke and end up with 6 rev gears and one forward.
Not all drive trains will have enough room but its an easy way if you can
ken
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Imp powered half-track sidecar outfit, with the driver sitting in the chair??
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Funky idea, but no (not convinced how well it would suit the hundreds of motorway miles there and back :o )
No, I'm looking for economy, performance, weather protection....
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No, I'm looking for economy, performance, weather protection....
Stow away in GC's sidecar then... ;D
Was going to suggest an Autobahn ready hovercraft as this would be warm being insulated from the ground, but not cheap.
A new take on the Messerschmidt or Heinkle 3 wheeler? An Ecomobile from the Glens?
R
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Now one of these hit the nail on the head..... but I'm not saying which :-*
Probably never happen anyway! ::)
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A new take on the Messerschmidt or Heinkle 3 wheeler?
Would not need the axle for a Ecomobile.
R
(http://asso.modellini-modellini.com/img/Messerschmitt-KR200.jpg)
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What axle?.... ;)
A transaxle is just another name for a a combined gearbox and final drive (still relatively unusual when the Imp was designed)
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Showing my ignorance then - thought it was a concatenation of Transmission and Axle, thus the transmission has output to a pair of drive shafts - the axle - rather than one which would lead to a diff etc. If you were producing a single track - ie an Ecomobile, you would not need the two outputs, just one.
A twin track with drive to two wheels would need it.
Could be hoping for snow and a version of this
(http://thekneeslider.com/images/snowmotorcycle.jpg)
R
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It does indeed have two outputs, but I only need one...
That bike you picture doesn't look very warm or motorway ready!
Ok I'll 'fess up(!)
I was/am looking idly into the technical difficulties of building a poor mans (normal mans more like!) ecomobile. The concept is good but their price completely ludicrous.
I was looking at an Imp engine/transmission purely because I have a spare one in the garage (doesn't everyone?!?) and being alloy construction it's relatively light for a car unit.
The idea would be to have an elongated "D" shaped loop of roll bar sized tube forming the horizontal part of the frame and encircling the rider passenger and engine, with the curved part of the "D" forming the nose of the vehicle with two elipses mounted vetrically just behind the rider and passenger seats, this would form the main frame and "safety cell" with conventional bike frame thickness tubing led off it to support everything else.
Looking at bike front forks/wheel/brakes controlled by drag links to a handlebar in the cockpit, rear suspension would be a swingarm mounted on a subframe off the rear of the main frame. Drive by chain from one side of the transaxle, the other side bolted off to prevent rotation and put all the drive to the chain side. Nose fairing from a butchered sidecar/bikefairing/roof box and remaining bodywork from alloy sheet. Windscreens from car glass (front panel in Spitfire/messerschmidt style!) and canopy a single curve sheet of perspex. Two seats in line with the rear passenger set a little higher than the driver.
Car seats, harnesess heater (oooh :)) and wiper etc, registered as a motorcycle (single track vehicle) The design of outrigger/stabiliser legs we're still thrashing out but we have identified at least one workable option.
Of course it's all just ideas, and I have no space/time to embark on such a project just now as I may be moving house imminently :O but it's an interesting planning exercise and I'm not ruling it out ;)
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Moving house! Proper move or a flit, if I may be so bold?
Nosey Parker!
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Dunno what your interpretation of the difference is!
To a new to us house closer to swmbo's work if it all pans out...
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Now we just need to transport back about 50 years.... According to my granddad - before he died - the hot cloche after WW2 was the bubble off a Spitfire, others were OK but the Spit had a nice shape. some of the jets had OK ones too - Buccaneer comes to mind. Now they would do you fine.
Sounds like a good idea and project, Could you not just steal the nose of a glider as the body?
Inspiration? http://www.craigvetter.com/pages/470MPG/470MPG%20Main.html (http://www.craigvetter.com/pages/470MPG/470MPG%20Main.html)
R
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If I could find a very cheap or free Glider then maybe! But it would be difficult to squeeze in crash protection suitable for road use.
One of the more expensive parts of a glider, and one of the most easily damaged is the canopy so I doubt I would be able to pick one up cheap, flat panels and single curves however are relatively easy so that would probably be the way to go :)
Of course if you have an old jet canopy, erm cloche, lying around that you don't want ;)
What I need to get now is a quote/best guess for supplying and bending up the main frame tubes,then we find out if it's financially do-able...
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Dunno what your interpretation of the difference is!
To a new to us house closer to swmbo's work if it all pans out...
All the best, I trust workshop arrangements have been sussed! ;)
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Hmmm, well if we get my first choice it will be the same or better (ie very good!) but if we get my second choice then the workshop will revert to a conventional single garage :(
Still not bad mind you, just not as nice... of course we've got to get ours on the market and agree a sale first so there's time yet for all the plans to change ::), pain in the bahookie* this house stuff!
*lets see the bad language filter spot that one :D