Pulley removal

[triumphman]

I am struggling to get the pulley of the front of the crank (lister JK6) its a cast iron pulley and there is not much room to get a puller in. I have it soaking in diesel and have left a 2 leg puller on over night.

Does anyone have any tips would heat help.

[xyzer]

Heat helps....and hinders....I would not heat it to much ...300F  try it...... let it cool heat again....try it. I have even squirted penetrating oil on it while it is cooling....draws it to the interior. When things are stuck you have to use all tools to your advantage...good luck!

[dieselgman]

Get ahold of a better puller... 3-leg is better, hydraulic is better, posi-lock is better. Persistence and patience goes a long way.

dieselgman

[listard-jp2]

The problem is with any puller on a cast iron pulley, in such a situation is unless your uber carful your very likely to break a piece out of the pulley if you persist as you will not get any warning.

A far better approach (which has worked for me), is to drill and tap two extractor bolt holes in the hub of the pulley, using long series taps and drills, and use these to pull the pulley off the shaft.

This will take time, but is still easier than breaking the pulley and having to get it welded up afterwards.

[triumphman]

Thanks for the reply's I am making a puller that will go behind the whole pulley so I will see what happens when I try this.

[dieselgman]

Go slow and easy, use a lot of lubrication, prep the shaft ahead of time, and if it does not come easily, use heat to start the parts moving. We have also broken many of these and often they are not easily replaceable. When we moved to a hydraulic posi-lock type puller, things got a lot easier and safer for this task. We use about a 12-ton head.

dieselgman