It's been a long time since I did any work on my 70D, but while changing the loose fan belt I noticed the fan was just about free to spin on its shaft. The friction disks must have disintegrated completely over the years... they are there to avoid stripping the bevel gears in the governor housing with "rapid changes in engine speed" according to the manual. So thru-bolting even with a relatively soft shear-pin sounds risky.
I pulled out the service manual and read the list of parts to be removed in order to take the fan shaft and governor assembly off (then use a press to release the spring and remove the split locks, which work just like a huge version of a valve spring):
Remove hood & fuel tank, cranking engine... exhaust manifold, upper water pipe, water manifold, air cleaner, heat exchanger, generator... not in this lifetime I'm not! :blink:
So I'm wondering if anyone makes a tool to compress the spring and remove the locks without taking half the tractor apart first? Has anyone attempted this job? Or is there a work-around?
My tractor does not have power steering. I saw a 2005 post from F-I-T here where the PS pump + fan assembly can be finessed out... but is it possible (even if removing the radiator is required) to get the fan off the manual steering version?
thanks
Charles
I pulled out the service manual and read the list of parts to be removed in order to take the fan shaft and governor assembly off (then use a press to release the spring and remove the split locks, which work just like a huge version of a valve spring):
Remove hood & fuel tank, cranking engine... exhaust manifold, upper water pipe, water manifold, air cleaner, heat exchanger, generator... not in this lifetime I'm not! :blink:
So I'm wondering if anyone makes a tool to compress the spring and remove the locks without taking half the tractor apart first? Has anyone attempted this job? Or is there a work-around?
My tractor does not have power steering. I saw a 2005 post from F-I-T here where the PS pump + fan assembly can be finessed out... but is it possible (even if removing the radiator is required) to get the fan off the manual steering version?
thanks
Charles