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Old 07-11-2010, 07:27 AM   #1
danielson OP
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Location: Adelaide, Oz
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Wicked Making of the 10HP Diesel Prime Mover

Hey all


Thought I might show this short build of a Diesel powered motorcycle

The Diesels a 418cc 10HP lump. A clone of a Yanmar made by our Chinese friends.

I've been told by the importer these are the better clones using quality injector, seals and bearings (maybe SKF or FAG?).
Time will tell.

I used an Enfield as the donor bike. They aint that cheap these days but the parts are and widely availability. Thanks Indians probs won't last forever though.

As the whole setup originally has the petrol motor as a stressed member, we went with the original design and made the Diesel as a stressed member too





Had to purchase a Renold 25 tooth duplex sprocket to go on to the output shaft of the Diesel. Its in the BRH corner

Local machinist got it bored out 1" with a 1/4 key way to fit.

A hole was tapped, threaded to fit a grub screw to grab onto the key steel.



First off had to make a backing plate on the gearbox using 5mm steel, 400 by 100 for $7, what a rip off.

2 holes were drilled at opposite sides on the gearbox plate, to make 4.

At the back of the motor is the governor linkage (throttle), it's the beta version, I made an improved one later.




Leveled the rear bracket, placed the motor on it at proper height with the front bracket. Welded on triangles to bolt to the front down tube.

Front bracket made from 6mm steel with 6mm triangles. $10 for 1000 by 200 wide 6mm thick, baargain!!





My bro did all the important stuff; the welding, I did all the cutting, grinding, made throttle and engine kill cables and other bits and bobs.








Had to measure out accurately the 3 holes to drill in the inner primary to bolt onto the motor.

The Diesels output shaft is the same distance from the gearbox shaft as the previous petrols.

Didn't have to alter primary chain at all.

Just eyeball it with the clutch basket sprocket bolt the grub down and your good to go.








That's me ugly mug in the Jackie Howe







All fitted.

Painted the flywheel cover black

Later cut out the all important head steady to get welded.

Can see in the pics below.



Pre units are great






And out in the country

It should hold up well, currently 700kms on it.

Dan
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Old 07-11-2010, 07:36 AM   #2
neilaction
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Nice work. Keep us posted.
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Old 07-11-2010, 07:53 AM   #3
woody's wheel works
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awesome lil project!!!!

kudos to the two of ya

here's another mate of yours down under,,,,a kindred spirit who thinks outside of the box:

OBTW,,,don't let the thread title mislead ya
http://www.advrider.com/forums/showt...=311887&page=9

looking back over the years, i have always been impressed bu the QUALITY of the work as well as innovation coming out of ozzieland and NZ....perhaps it arises out of the fact ya don't have everything at your fingertips

a green tinny or darwin stubby to ya

woody

FYI,,you two have buildt a machine that in a way is very future thinking,,,,,because the wave of the future [starting immediately] is how to conserve ,,,how to recycle,,,how to build longlasting devices,,,how not to get sucked into consumerism and planned obsolesence,,,

you guys are on your way,,i'd open my work-shop any day for you all to tinker in
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woody's wheel works screwed with this post 07-11-2010 at 08:00 AM
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Old 07-11-2010, 12:01 PM   #4
BikePilot
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Great work

I'm curious what sort of fuel system the little diesel uses (guessing a mechanical pump and indirect injection)? I bet there's a ton more power to be had if you can squirt a bit more in An industrial engine is probably limited such that EGTs won't get crazy if run WOT continiously. On a motorcycle you could get by with a lot more fuel for a short amount of time without melting stuff I think

What's it like to ride?
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Old 07-11-2010, 01:02 PM   #5
Clancy
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Love your work Great vision.
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Old 07-11-2010, 03:06 PM   #6
DRjoe
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Hats off to you for building that.
But you realize what you've started, There are now a crap load adv riders searching the classifieds for an old pre unit bike. Me included.

How much has the finished bike cost you?

I used a yanmar clone to build a hydraulic power pack for my brothers crab boat.
The build of the motor was really impressive for being so cheap.
The strange thing was it really didn't like getting wet I mean just a splash of water over it would cause problems so maybe a better cover over the air filter and some sort of muffler would make it usable in the rain.
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Old 07-12-2010, 01:04 AM   #7
FatBoyCrash
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Mate!! Top effort! Any chance you could give some more details on the donk? Like name and who where you got it from??
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Old 07-12-2010, 03:22 AM   #8
pugsley
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Nice one Fella,Great Job!
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Old 07-12-2010, 03:24 AM   #9
WILL_S
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Well done.
Now where's that old pre unit frame and box i got laying round.
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Old 07-12-2010, 03:38 AM   #10
kiwipeet
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Thumb Really nice work man

Thats a great bike.

I'd love a wee pokka pokka bike like that for myself. I find myself looking far too often at BSA bantams... Hmmm a diesel beesa banty....
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Old 07-12-2010, 04:03 AM   #11
Mickldo
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Well done.

I love diesel bikes.

Check out http://www.dieselbike.net/ if you haven't already.
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Old 07-13-2010, 03:32 AM   #12
danielson OP
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Thumb Thanks all for the comments

Thanks heaps all for the coms

Thanks woody, that's exactly what the plan was, one may say 'a bike for life' providing the motor keeps going.

Bike Pilot the motor is direct injection. Yep its got a mechanical pump.
I don't about getting more grunt as I've read its a fixed timing motor, its best run a constant 3000 or any other.
What I have seen is people whack on small turbos on these 10HP motors, I don't know bout reliability though.
Heat wise its got a big fan on the flywheel forcing air on the cylinder and head. So the motor gets cooled twice while riding. I don't think it'll overheat.

If you have ridden a 50s British single, its just like it.

Yeah Joe I wish I didn't post this, now all pre units will dry up

Costs all up around 4000 bike included

Yep the motors good for the price. I haven't ridden in heavy rain yet just light, no problems. Interesting though.
The airfilter is nicely covered.

FatBoy

Here's some stats

418cc 86X72
10HP @ 3600rpm
26Nm 1500-3500rpm

Bought from
Tool Power on Epay, a Melburn mob

Peet
Bantams are unit construction I think. I reckon B33, B31, M20 or 21 from the Beezas would be good candidates.
You'd want at least 4 speeds.

There are other options, getting a an sheap old japper with a 6 speed, 80s CB250 superdream or the like, cutting the gearbox out and making a separate casing for it.

And you have yourself a nice gearbox. Sounds like a lotta work. This has been done before.

Hey Mick

Yep great site that, lots of good bikes



A few more from todays ride

900kms clocked up so far, running well







I'll have a few vids soon
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Old 07-13-2010, 05:01 AM   #13
clarky
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Fantastic work Danielson, love it

What sort of economy are you getting, have you had to use anything other than the oily rag stuffed into the intake
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Old 07-13-2010, 06:41 AM   #14
danielson OP
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Laugh Fuel Consumption

Clarky mate thanks

I thought I'd get that question first

Currently at 55km per liter, so 1.8l/100km

That figure might improve after running in

Comfortable range of 700km with the current 13.5 liter tank
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Old 07-13-2010, 01:41 PM   #15
mcfear
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far out thats good.
whats the top speed like?
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