Its a kind of cousin to the Ferguson , but ah ho that was long ago , and i don't give a dam
here's a picture just in case you don't know what one looks like ,
right your probley wondering what i was doing to this fordson , well the clutch sounds a simple enough job and it should be , split the tractor take old pressure palate off fit new one easy ( I should be so bloody lucky ) below is a picture of a brand new pressure plate with a new thrust bearing laying on the 3 actuation levers NOTICE ANYTHING
And the manual says this
I did laugh , when the owner said he had taken it back and the bloke behind the counter said they where all like that
anyway i was asked to sort it out because he had ( had enough to say the least ) I don't blame him there is so much crap out there ,
so i went to work making an adjustable copy of the end of the fordson gearbox main shaft
and yes that is the top of an old piston put to good use, you will see what i did with another old piston a bit further on in this blog,
this thing will mimic the travel of the thrust bearing and let me set the height of the actuator arms which in fact had a difference of 6mm from the lowest to the highest, quite a big difference , OK yes i did try it just to see what it would do
it tipped the pressure plate over at an angle and jammed the clutch plate on the shaft quite funny for a new part , unless its you that's just payed your hard earned cash for the said new part and then find you have to pay someone else to fix it . then its not so funny , any way i took some more measurements and started to work out thrust bearing movements and so on and so forth , took the flywheel off and set it on the bench fitting the clutch plate and old pressure plate and back engineering it working out how much metal was missing off the adjuster bolt heads and measuring the head heights and stuff then i took off the old pressure plate and put the new one on and adjusted the heights of the actuator arms
then tested the travel of the arms compared to the thrust bearing travel ARE WE BOARD YET i should not have to do this SH...T... so then after a small adjustment i got it down to a half a turn on the jack i was using just under 1mm got me a nice 2 thou gap between the clutch plate and the pressure plate which i could measure with a feeler gauge that told me the pressure plate was moving squarely
i know this sort of accuracy is a bit over the top but near enough is not good enough, its got to be right
have a look at this see it works , click pic
I look at it this way the blokes out in the field dragging his plough and his clutch goes again not only has he got to drop the plough off and get the tractor out of the field hes then got to get it fixed again , enough said ,
Have a look at this radial arm .. tie bar what ever you want to call it end cap ha ha shim
its a bit of an old plastic oil can , I only found a couple of bits in the other side , it worked for a wile anyway
i fixed these to brass plate is a way forward in shims
and i also fitted a new rear crank shaft seal because the owner wanted it done , here is the other piston
modified to do a job 10 thou smaller than the seal seat on the crank shaft , fit new seals in there housings clamp them on to the piston top leaves you a nice bit for the crank to take up simple , and you can see that the seal is sitting propley in the seat , right ive got some work to do , later.