Fiat 702 Tractor

[Stewart HartParticipant @stewarthart90345]

Thanks for you're reply Graham I asked the ? for selfish reasons I've been casting arround for a long term project when I get my loco finished, and fancy doing something IC ish.

Stew

[Sub MandrelParticipant @submandrel]

This will be worth waiting for

Neil

[Sub MandrelParticipant @submandrel]

That's agood day's work. It woudl take me a week or two, and not look as good.

And I've spent seven years thinking about a Fordson Model F, and got no further than some half finished patterns and the gearbox internals.

Neil

Edited By Stub Mandrel on 27/08/2013 20:59:17

[Sub MandrelParticipant @submandrel]

It's looking very lovely Gray, it will be a shame to paint it.

Unfortunately, I can't see a way of machining a bell housing that big in one piece. It may be feasible to do it in two halves, but nearly a foot long and mostly tapers…

Neil

[Ian PParticipant @ianp]

Posted by Graham Meek on 28/08/2013 19:45:31:

Well I have finally finished the sump with the exception of tapping 4 off 10BA in the timing cover end, 5 off M3 holes to attach the bell housing, 4 off 6BA for the front axle bearing and 2 off M2 for the axle pivot support bracket.

Gray,

I've just got to ask… Why the mixture of metric and BA sizes?

Ian P

[Jeff DaymanParticipant @jeffdayman43397]

Sump and crankcase parts look great Gray.

Just FYI Neil – the tapered endmills at the link below make machining draft angles a doddle and are not terribly expensive. Many angles from 1/2 degree to 15 degrees are available. The mill table capacity is the main factor to determine how large a housing can be machined.

**LINK**

JD

[JasonBModerator @jasonb]

You don't hang about do you!! Looking very impressive so far.

What is your build plan? Do the engine then transmission and start to hang bits off that or will you break up the machining with a bit of sheet metal work now and then?

J

[Sub MandrelParticipant @submandrel]

Gray,

I want to see this finished! Will it be ready for MMEX?

Neil

[Gordon WassParticipant @gordonwass]

Gray ,off topic I know, But you don't have a profile. I was reading an old ME, about 1954 I think, there was an article about a lathe with two drive motors. Very good idea I thought. The chaps name was G Meek, any relation ? You must have been about 10 at the time.

[JasonBModerator @jasonb]

Gray, I for one would be interested in any of the aspects of the tractors construction but would hate it to keep you out of the workshop.

J

Following along but not always commenting

[Sub MandrelParticipant @submandrel]

> I type all the right letters but not necessarily in the right order,

I know exactly what you mean

Neil

[Sub MandrelParticipant @submandrel]

Hi Gray,

>the mind is willing but my muscles aren't

Are you pushing yourself too hard?

Take some breaks, and write it up! I for one would be delighted to see this serialised.

Neil

[Sub MandrelParticipant @submandrel]

> I also wonder if there is a need for articles on IC tractors.

I need them! In ME, please

the 1:4 tractor could potentially be a growth area for model engineering, as like traction engines they can pull you along, but unlike them they don't need a hugely expensive boiler.

Neil

[Sub MandrelParticipant @submandrel]

Thanks Evan

Neil

[John Stevenson 1Participant @johnstevenson1]

Posted by Graham Meek on 26/09/2013 09:27:14:

Hi Neil,

I wish I had the facilities to build this tractor in 1:4 scale, some of the parts on the engine will be in the Watchmakers territory, but I am enjoying the build so far despite set-backs with my health.

I thought you might like to see the following,

**LINK**

Gray,

.

.

Novel use of the steering wheel as a starter handle.

Grey, as Jason says could be the start of something useful given the price of boilers and running

[HobbyNutParticipant @hobbynut]

This is being built in an amazing fashion. Graham you are a true craftsman and I wish you great success with this. Are you making the drawings available?

I too have grandkids that keep me going on my projects, they are true gifts to us.

[Sub MandrelParticipant @submandrel]

> Having seen one of these tractors parked next to a Fordson F at a rally, the Fiat is head and shoulders above the Fordson.

Ibndeed the Fordson engine at 1:4 scales very close to ETW's Seal, curioously a side valve of such similar layout you could amost drop it in such a model!

I hadn't really grasped the reality of modelling a tractor at 1/8 scale untill I watched the John Deere video. Things like the gearstick must have to be made from medium carbon steel, just so they don't bend.

The reduced amount of metal to remove partly explains the rapid progress, but on the other hand it makes my jaw drop to realise what fine work is being done.

Neil

[JasonBModerator @jasonb]

Graham, you may find the first film in this post of interest, lots of early tractors and crawlers. Though unlikely to be Fiats as its French.

J

[dave greenhamParticipant @davegreenham19379]

Hi Gray.

youre doing a cracking job of this Tractor .

Bob and I are following with great interest.

you sometimes feel like a novice ? I can't believe that .

having see other projects you done.

When this model is done. I expect that we shall have to nip

over to see it in the flesh so to speak.

stick at it mate

Dave and Bob

[Sub MandrelParticipant @submandrel]

> Having seen one of these tractors parked next to a Fordson F at a rally, the Fiat is head and shoulders above the Fordson.

OK. Is anyone up for this 'Gas Tractor'. Wheels 2' 1 1/2" in 1:4 scale! The four cylinder engine would be 2 in stroke and 1 1/4" bore…

Neil

[JasonBModerator @jasonb]

Everything is big in America

[PackmuleParticipant @packmule]

Hi Gray,

That is looking brilliant. I'll look forward to seeing it at some point.

Don't forget the PG Tips on friday and don't drop the piano on your foot

Bob

[Michael GilliganParticipant @michaelgilligan61133]

Gray,

Your reports will be sorely missed.

Many thanks for the fine craftsmanship that you have shared to date.

MichaelG.

[Alan .204Participant @alan-204]

Hi Gary i don't know what has been said but i for one am disappointed by your decision, the build coupled with the write up you have been putting out has for me been fascinating to read and watch the build progressing your work on the model looks brilliant, this post for me will be sadly missed, i hope the model turns out just how you planned it, may be you could send a pic of the finished tractor.

Regards Alan.

[Ian S CParticipant @iansc]

Gray, how well will the valve guides/ valve stems wear with the MS guides? Would not cast iron, or bronze not be better? The job's looking good. Ian S C

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