Ford 4100 tidy up

Harvester

Member
Two questions my nephew is doing up a 4100 as part of his college coarse he's on a tight budget
One is does anyone know of a pair of 36" wheels on six stud?
Two. is there a way of getting the rev counter to work this tractor has got an alternator many thanks
 

forblue

Member
3.cyl same drive, dynamo, there are some firms in old car circles that put alternator in dynamo casing but never seen one with tacho drive as the armature shaft is different
 

Bucks Boy

Member
Mixed Farmer
4100 would of had an alternator fitted from new. As said above, Rev counter would be driven off camshaft. You can buy drive kit to fit 4000 engine from the likes of Agriline. As long as it hasn’t got large old cartridge oil filter fitted. Engine driven rev counter runs opposite way to Dynamo driven one.
 
My 4600 has alternator, drive for rev counter comes off the cam under oil filter.
I had seen some wheels on FB but after finding them discovered they were in limerick Ireland. Theres a pair of 6 stud 14.9 28 on ebay (there up in Caernarfon at Gwynedd farm machinery) also a pair of 14.9 30 fordson major wheels too. but I think it will look better on 13.6 r 36 wheels. They do crop up quite often on eBay and FB market place.
 

jf850

Member
Location
Co laois
All Ford 600 series had an alternator , and that would include the 4100 in the same range.
There is a Fieco cabbed 5600 here , since new on the 26th of February 1976 , it cost £4100 , with power steering , dual power , but no puh.
And a long dead uncle bought a new Fieco cabbed 4100 on the same day , though itdidnt turn up on farm until 2 weeks later than the 5600 and both came from the same dealer.
The 5600 was a derated 5000, as in less power , the dealer had 3 of them in stock , not going anywhere . My father was looking to buy a 4600 , but got the 5600 for very little extra money.

The 4100 was normally supplied on 6.00 x 19 fronts , and 12.4 (11) x 36 rears .
The 5600 is on 13.6 (12) x 36.
 

Harvester

Member
My 4600 has alternator, drive for rev counter comes off the cam under oil filter.
I had seen some wheels on FB but after finding them discovered they were in limerick Ireland. Theres a pair of 6 stud 14.9 28 on ebay (there up in Caernarfon at Gwynedd farm machinery) also a pair of 14.9 30 fordson major wheels too. but I think it will look better on 13.6 r 36 wheels. They do crop up quite often on eBay and FB market place.
Thank you
 

forblue

Member
Sorry, but don’t believe everything you read. All the 600 range including the 4100 were fitted with alternators from new. Google images of 4100. They’re all fitted with alternators. It was one of the new selling features of the new range.
Been busy so only just got back on here, i will concede you are right, strange that i worked for main dealer for 30+ yrs but i never remember going on a training course or even seeing a 4100, like the 5100 only ever see one.
 

David Bliss

Member
Arable Farmer
Two questions my nephew is doing up a 4100 as part of his college coarse he's on a tight budget
One is does anyone know of a pair of 36" wheels on six stud?
Two. is there a way of getting the rev counter to work this tractor has got an alternator many thanks
If its an alternator thats now fitted its easy to convert back to old dynamo, I have converted a standard dynamo without drive as the drives are a bit like hens teeth, but using a good armature without drive, and a burnt out with a good drive, by swapping the end plate, think I drilled and threaded the end of the armature shaft fitted a bit of threaded rod, cut the worm off the dead armature and drilled and threaded that and used lock-tite, so one way to get a cheep working dynamo.
 

ford 7810

Member
Location
cumbria
A 4100 needs an alternator and take rev counter drive from under oil filter you will need the oil pump drive with the square drive in the top the original rev counter will work properly then, but you can’t do this with a big filter engine.
 

ford 7810

Member
Location
cumbria
It's a cartridge one
That’s more difficult if not impossible,but if you remove the oil filter housing and put on adapter to use spin on filter you may be able to fit a drive.you also maybe able to swap an original style engine ,big filter engine are getting rare. depends how fussy and how much hassle you want.
 

Bucks Boy

Member
Mixed Farmer
If its an alternator thats now fitted its easy to convert back to old dynamo, I have converted a standard dynamo without drive as the drives are a bit like hens teeth, but using a good armature without drive, and a burnt out with a good drive, by swapping the end plate, think I drilled and threaded the end of the armature shaft fitted a bit of threaded rod, cut the worm off the dead armature and drilled and threaded that and used lock-tite, so one way to get a cheep working dynamo.
Sorry. But why would you convert it to a dynamo. You would have to modify the wiring loom for a voltage regulator. New regulators made in China are crap. Modify mounting bracket. Also alternators are more reliable with a better output. Hour/ Rev counter would have to be changed.
 

David Bliss

Member
Arable Farmer
Sorry. But why would you convert it to a dynamo. You would have to modify the wiring loom for a voltage regulator. New regulators made in China are crap. Modify mounting bracket. Also alternators are more reliable with a better output. Hour/ Rev counter would have to be changed.
If the rev counter can't be fitted to the old engine go back to a dynamo with cable drive, and a dynamo not bodged up outlasts an alternator, I agree some of the reproduction stuff is crap so I repair old myself, and batteries last longer with them being gently charged. whats different with the wiring theres little to do.
 

Lincsman

Member
Arable Farmer
Location
Lincolnshire
If the rev counter can't be fitted to the old engine go back to a dynamo with cable drive, and a dynamo not bodged up outlasts an alternator, I agree some of the reproduction stuff is crap so I repair old myself, and batteries last longer with them being gently charged. whats different with the wiring theres little to do.
A dynamo has I think 5 wires to a regulator, an alternator really only uses 2, one direct to positive on starter and one from ignition light, to retro fit alternator you cross wires at the regulator, the reverse is a re-wiring job.
 

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