Primary Clutch Weight Bushing Replacement Tool

This simple bushing removal and installation tool will allow you to keep your primary clutch in tip top operating condition. When the bushings wear in the weights, it can allow erratic operation of the clutch. It costs much less to purchase a new set of bushings and the installation tool than it does to buy a new set of bushed weights. The tool can be used over and over again also.

Installation Instructions

1. If you have a tool for removing the weights from the primary clutch, while it is on the engine, use it and remove them. if not, remove the clutch from the engine and carefully remove the outer cover. before taking off the cover, notice that it has an "X" marked on it and that the spider underneath also has an "X" on it. These are balance reference marks and have to line up on reassemble. If they are not visible, mark the cover and the spider so they go back together the same way. The outer cover is under spring pressure, so be careful when unscrewing the 6 bolts that hold it in place! Undo the bolts evenly.
2. Once the weights have been removed, clean the belt dust out of them. Do not put the weights in cleaning solvent, they are impregnated with oil for lubrication. Use a clean dry cloth for cleaning.
3. Notice that the holes in the weights have a chamfered side, this is the side that you will use the removal and installation tool on.
4. Removal and installation is easiest if you have an arbor press, if you do not have access to one of these, a vise can be used. Take one of the weights and insert the small end of the removal tool into the pivot bushing from the chamfered side. Then position the weight and the tool over the large bushing that comes with the insertion tool. Then position the tool, weight, and the bushing under the arbor press. Use the press to push out the old bushing; it will fall into the center of the large bushing with the insertion tool. Do the same on the other 2 weights.
5. The old pivot bushings can be discarded. Check the holes in the weights to make sure they are clean. Take the insertion tool and place a new pivot bushing over the small end, then place the end of the new bushing into the chamfered end of the weight.
6. It is important to make sure that the new bushing is started squarely in the hole, otherwise the new bushing can be damaged. The bottom the the weight should be placed on top of a thin piece of plywood or something that has a little bit of give to it. Using the arbor press or the vise, press the top of the insertion tool down until the small end bottoms out on the far side. The length of the tool is such that it will stop on the far side without pushing the bushing in too far.
7. Realize that the weight is made from sintered metal and should be treated carefully! DO NOT CLAMP THE WEIGHTS IN A VISE OR POUND ON THEM TO REMOVE THE OLD BUSHINGS. You do not want to damage or mark them up in any way. Remember that these are in the clutch that is out in front of your body, that is spinning at 8-9000 rpm. If you follow these instructions, there is no chance of damaging the weights. Once the weights are removed, the bushing removal and installation takes less than 5 minutes.
8. While the weights are removed, check the condition of the pivot bolts. Replace them if they are galled. Clean any belt dust off the bolts if they are to be reused. Facing the outer cover of the clutch with the engine behind the clutch, the heads of the pivot bolts are on the right side of the weights.
9. Assemble the outer cover of the clutch with the "X" lining up with the "X" on the spider, draw down on the 6 bolts evenly. Tighten the bolts to 90 in/lbs or 7.5 ft/lbs
10. Install the clutch on the engine and torque the bolt to 40-45 ft/lbs. Check the bolt for tightness after several hundred miles of operation.