chunky2772
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| posted on 9/6/10 at 07:21 PM |
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help idea for reverse?
im using a bike engine in my car does anyone have any good ideas or pics on making a reverse system without me have to use a quaife box. i wish they
would change this new pointless rule as well!
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eznfrank
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| posted on 9/6/10 at 07:25 PM |
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Cheapest way seems to be ring gear between prop and diff turned by a starter motor
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imp paul
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| posted on 9/6/10 at 07:25 PM |
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a gear on the end of the diff could be made by hpc gears and a car starter motor with a relay job done  approx £120
[Edited on 9/6/10 by imp paul]
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coozer
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| posted on 9/6/10 at 07:29 PM |
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MNR reverse box.
1972 V8 Jago
1980 Z750
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Dangle_kt
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| posted on 9/6/10 at 07:32 PM |
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I think something like this might work really well.
http://cgi.ebay.co.uk/Hypercamp-Caravan-trailer-Mover-Prestige-/280489841417?cmd=ViewItem&pt=UK_Campervan_Caravan_Accessories&hash=item414e7f5
309
If you built a mildly adjustable mounting system based on the IRS rear end of most modern kits, you could rent it out just for IVA.
Minimal fuss to remove, no added weight once on the road, and takes the problem away for everyone.
Not sure if it would be counted as a "reverse" as I dont have the new IVA manual, but I dont see why it wouldn't be, as a starter
motor/ring isn't driven by the main transmission or engine either.
edit to add, I don't mean the double kit liek the one I linked to, just one, driving the one wheel.
[Edited on 9/6/10 by Dangle_kt]
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chunky2772
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| posted on 9/6/10 at 07:35 PM |
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how big as in what dia, does this gear fitted to the prop shaft have to be? im not sure the starter motor would be powerfull enough if the gear
fitted to the prop shaft was only small. and im worried a larger gear fitted to the prop shaft would unbalance the shaft!
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imp paul
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| posted on 9/6/10 at 07:40 PM |
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try pm dan mnr zx12r as my mate just made him a gear and all is sweet 
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eznfrank
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| posted on 9/6/10 at 07:46 PM |
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p.s. Do a little research on the starter motor too, some turn the wrong way. Ring gear not too big as has to fit in tunnel on mine. Not particularly
fast or powerful but gets you through IVA if that's all you're after
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motorcycle_mayhem
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| posted on 9/6/10 at 07:46 PM |
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If you have Freeloader differential flange at the rear, I have a bespoke UJ flange to fit, with a small ring gear attached. This then engages with a
lightweight motorcycle starter on a frame. I have the whole package ready to fit, it's really nicely done. What it won't do is reverse
your car up a steep driveway, it's an MSA requirement level mechanism (or, I guess IVA).
The MSA finally clarified the reverse situation, so I removed the whole assembly at the start of the season, having spent a long time installing it.
Ho Hum.
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imp paul
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| posted on 9/6/10 at 07:50 PM |
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dans car is a mk and its in the tunnel all fits very well i will get him to send me some pics
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chunky2772
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| posted on 9/6/10 at 07:55 PM |
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thanks thats give me an idea i wonder if i can fix two cordless drill motors to a bracket either side of my rear wheels fixed with rubber drive wheels
that lower onto the tyres (it will be slow reversing if there powerfull enough)
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Davg
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| posted on 9/6/10 at 07:56 PM |
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Do a search matey been covered many times,
cheers
D
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chunky2772
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| posted on 9/6/10 at 08:11 PM |
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just done a search carnt find anything! im either searching in the wrong section or i need some specs. (imp paul! pics would be nice if you can get
some mate to see how this is done thanks from mick)
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Dangle_kt
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| posted on 9/6/10 at 08:17 PM |
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use the google search, not the locost one - the inbuilt one can be a little picky about terms used.
go to google and type whatever you are looking for in the box but just follow it with
xxx site:www.locostbuilders.co.uk
where XXX = whatever words you want to search for.
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40inches
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| posted on 9/6/10 at 08:20 PM |
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Look in my archive, plenty of info there 
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chunky2772
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| posted on 9/6/10 at 08:21 PM |
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thanks!
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Davg
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| posted on 9/6/10 at 08:22 PM |
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Chunky have a look at this
http://www.locostbuilders.co.uk/viewthread.php?tid=113340
I have currently got cars with 1 with lecky reverse and 1 with quaiffe.
Best to answer what you want it to do ie function as normal reverse or just go back oin the flat as prev referred to above.
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40inches
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| posted on 9/6/10 at 08:34 PM |
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This is the starter you need.
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chunky2772
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| posted on 9/6/10 at 08:39 PM |
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davg, just looked at those pics i just havent got the room at the rear of the diff to do that im using an mx5 diff in my car so ive only got room at
the front of the tunnel where the engine goes it looks a good simple idea though. i will have to give it some thought overnight the wifes giving me an
ear bashing cos ive be on this fourum all night (carnt wait to get the car done so i can escape ha ha.)
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Davg
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| posted on 9/6/10 at 08:45 PM |
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Chunky, 'ear bashing' you just need to get used to it tell her you'll buy her a new pair of shoes or ?
(might have a quaiffe box up for grabs if any interest, not that cheap though!)
cheers D
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