Suddenly won’t start

A place for general Nuffield questions and chat
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JohnP
Posts: 124
Joined: Fri Mar 30, 2018 8:05 pm
Great Britain

Re: Suddenly won’t start

Post by JohnP » Thu Jul 11, 2019 3:40 pm

When I worked in West Africa I saw things you would not believe, you'll probably think I'm relating hearsay stories but I've actually seen the following;

Wooden pistons, ground down bearing caps to take up slack, kerosene in gear oil to make "Engine" oil, bearing caps on in the wrong numerical order, condoms used as diaphragms in Zenith Stromberg Carbs.

In that part of the world an injection pump is an "Injection Pump", an injector is an "Injector" if it fitted it worked, probably why engines smoked so badly!

I've also seen trailer axles with only one pair of wheels on one side and the other held up with rope where the wheels were missing. Engine being changed in the middle of the road and righthand drive trucks converted to LH drive by welding drag links to steering boxes which have been moved to the other side of the chassis, the instrument panel was left where it was on the RH side!!!

Plus, plus many other bodges and home made modifications. I won't start on the subject or tyres, save to say that many accidents were caused by blow outs.

Therefore to put fuel pump elements in the wrong place and from another unrelated pump was common place.

Cummins "Pressure Time" fuel systems with push rod operated injectors caused a few problems due to no "Dial Test Indicators" being available. Setting valve clearances was accomplished by feel.

To cap it we regularly hauled components up from the docks where the gross vehicle weight exceeded 56 tons, this on two axle tractor units with two axle trailers which in the UK would have been plated at 32 tons!

Oh the joys!


JVP

If it ain't bust don't fix it!

EccentricDyslexic
Posts: 22
Joined: Sun Apr 01, 2018 11:01 am
France

Re: Suddenly won’t start

Post by EccentricDyslexic » Thu Jul 11, 2019 4:23 pm

I highly suspect that many of these old tractors were run on a shoestring and there would have been very little chance that an issue with the pump such as this wouldn’t have been dealt with at the roadside to get it running.
They wouldn’t have sent the pump off to a specialist for repair under laboratory conditions leaving the machine not running for some weeks. Needs must. If it can’t be fixed with some pliers and fag paper at the side of the road, few would have been sold:-)
Ymmv, just mho,
Steve
A Brit living in France with a Nuffield Universal Four with BMC engine. I use it for mowing a big field about four times a year and am slowly improving it.

diggerdeano
Senior Member
Posts: 387
Joined: Sat Mar 31, 2018 9:04 am
Great Britain

Re: Suddenly won’t start

Post by diggerdeano » Thu Jul 11, 2019 11:27 pm

hi fair play you got away with it . its surprising just what can be done ive had lots of pumps in bits and put them back together while listening to it ll not work but when you fire them up and they run spot on nobody gives you credit and they all cry at paying the bill well theyd be crying even more if theyd sent the pump in for a recon

mike.l
Posts: 99
Joined: Fri Mar 30, 2018 10:29 pm
Canada

Re: Suddenly won’t start

Post by mike.l » Fri Jul 12, 2019 1:33 am

Hi I have seen my fair share of fixes a tractor where they welded the rings back together and it ran and i bought it
A plywood pulley bolted on inside of engine to stop oil splashing out and getting on the clutch and flywheel on a john deere
Wheel bearings that were too big being packed out with tin to make them the right size and that was all third world countries If you want to see adaptations and mechanical genius just go to cuba America tried to finish them off but they were very clever people. But for us to do it and risk life and limb just not right but i hope it goes well for you mike

diggerdeano
Senior Member
Posts: 387
Joined: Sat Mar 31, 2018 9:04 am
Great Britain

Re: Suddenly won’t start

Post by diggerdeano » Sun Jul 14, 2019 11:05 am

ive seen pistons made of wood big ends packed out with bacon rind

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JohnP
Posts: 124
Joined: Fri Mar 30, 2018 8:05 pm
Great Britain

Re: Suddenly won’t start

Post by JohnP » Sun Jul 14, 2019 11:39 am

In South America I was taken to a Nuffield refurbishment plant, they melted down old "Liners" and "Spun cast" them in spinning eathenwear drain pipes before machining to size on lathes. They even recast pistons and proudly measured the diameter to show the correct ovality! The small end machining looked pretty good to!

Gaskets were hand made and the fuel pump coupling machined from brass. I didn't see what they did with crankshafts and bearing shells, although I don't doubt they were reground and shells made to fit.

We exported many hundreds of Leylands to Venezuela and I get a few owners contacting me for advice. Where are all these tractors today?
JVP

If it ain't bust don't fix it!

Nowtnew
Posts: 89
Joined: Sun Apr 01, 2018 8:49 am
Great Britain

Re: Suddenly won’t start

Post by Nowtnew » Sun Jul 14, 2019 12:15 pm

For those who remember, this thread is getting a bit like the Monty Python 'hole in the road' sketch.😄.

Regards, and apologies.

EccentricDyslexic
Posts: 22
Joined: Sun Apr 01, 2018 11:01 am
France

Re: Suddenly won’t start

Post by EccentricDyslexic » Sun Jul 14, 2019 1:30 pm

Haha
A Brit living in France with a Nuffield Universal Four with BMC engine. I use it for mowing a big field about four times a year and am slowly improving it.

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