Old tractor Landini @scale 1/7

[ZAPJACK]

Dear all,
I will present to you a working model of a Landini 1934
based on a kit (drawings + castings)
2 stroke engine, clutch, 3 speed gearbox + rear
Brake, differential, water radiator cooling, etc...
Regards
LeZap

 

[Herbiev]

Thats a great looking tractor.

 

[Cogsy]

Fantastic job! Would love to see a video.

 

[ZAPJACK]

The first step was the machining of the gearbox. But this masterpiece is also the frame of the tractor.
LeZap

 

[kuhncw]

Hi LeZap,

That is a very nice looking model tractor. What is the engine bore and stroke?

Please post additional photos of the machine work.

Thanks.


Chuck

 

[kadora]

Hello Zapjack
As usual excellent work.
Please send us more pictures from your machining log.
Where is possible to buy castings for this tractor?

 

[Jasonb]

A nice looking model, I too will enjoy following your build

I suspect this is the source

http://digilander.iol.it/liguori/landini.htm

 

[ZAPJACK]

Yes, it's coming from Italy.
But I expend there is no advertising on the site ?
Engine is a long stroke 28x42mm= 26cc engine.
Next picture are the machining of the cylinder. Nothing complicate here
LeZap

 

[ZAPJACK]

Check of the orthogonality of the milling machine spindle.
Old fashion system is the best one. Caliper & steel axle.
Default calibration of the DRO and zero setting of X & Y axle is very important in this case
No any error are allowed because the 7 followed axle position depend of the good running of the gearbox.
Crankshaft, gear box fork (2), First & second gearbox axle, rear axle and differential.
The two last pictures are reality tractor under renew (not mine!!)
LeZap

 

[ZAPJACK]

measurement of the job.
The two paralel axle (5mm) are the future position of gearbox forks.
LeZap

 

[ZAPJACK]

Now, construction of the crankshaft.
It's a 34CrNiMo6V hard allied steel.
Assembled by thermal expansion.
Final fit with plug
LeZap

 

[kadora]

Hello LeZap
Perfectly describing pictures but i would like to ask you
what is your way to secure con rod pin to the fly wheels?
On 11. picture from the top are two little pins securing con rod pin.
Are these 2 little pins pressed to the fly wheel ? or
some different method is used.
Thank you

 

[ZAPJACK]

Are these 2 little pins pressed to the fly wheel ? or
some different method is used.

Hi Kadora,
Pins are beat with hammer + hard Loctite.
Regards
LeZAp

 

[ZAPJACK]

Here is nothing difficulty to machine the conrod.
LeZap

 

[ZAPJACK]

Pictures of the main bearings.
Machining of the two flywheels. Bar-stock steel.
Zéro setting of the crankshaft.
LeZap

 

[wirralcnc]

Would you have contact details for the person selling the castings.

 

[ZAPJACK]

This is the junction box of radiator ventilator
The bearings are mixed (ball bearing + bronze bearing)
Alignment must be perfect!
LeZap

 

[ZAPJACK]

This is the machining of the cog-wheel.
Position is between the crankshaft and ventilator redactor gears
LeZap

 

[RManley]

A really beautiful piece of work so far. Following with great interest!
What size is that chain - it looks tiny

R

 

[ZAPJACK]

What size is that chain - it looks tiny

It's a 4mm pitch chain and 2.7mm inner
LZ