Here is how to repair a shaft with a groove cut in it by the seal.
See pictures...... I could not get them into proper order so view #4 first.
IMPORTANT NOTES: If you are sleeving an area above the water pump impeller, the lower bearing and gasket (if one), the pump bottom plate, impeller and pump housing and gasket must be on the shaft before the sleeve is installed as the impeller bushing is too tight to go over the seal. It is best to do a physical fit up prior to installing the sleeve to ensure you get it right. The seals will go over the sleeve but be carefull and lubricate the seals well or the seal inner spring may shift which will require you to hold the spring in place with a finger and use a screwdriver to place the spring back into the proper position.
Measure the shaft with a micrometer in three places around the same area and determine an average diameter.
Go to your marina or local bearing supply company, the auto parts place or on line to buy a sleeve that has a range where the measurement you took is in the middle.
For example, I had an average of 0.750 and found a SKF Speedi-Sleeve that is designed for a shaft between .748 and .752 The length of this sleeve is 1/3 inch. The one I used is a SKF 99076. You can order odd sizes but they are expensive.
Read the instructions which warn against using heat and tells you to use a non hardeningt gasket compound in the groove as a filler. I use a little vasaline just in front of the seal to lubricate the shaft, it does not take much. In the past I have frozen shafts to shrink them and heated sleeves in an oven to expand them but it is best to get the proper size.
The sleeve comes with a driver and the driver fits against the bottom flange of the seal to drive it on. You are going to need a hardwood board with a hole drilled through it or a pipe. I used the board to drive the driver which drives the sleeve.
Be sure to mark the stopping point for the seal, I used tape. Be very careful not to mushroom the shaft ends, use soft wood on the ends.
After the seal is in place, you will need to remove the bottom flange. Note it has a pre-cut groove but you have to cut the flat part to get a pull point to peel it off. I use a file to cut a v notch then a sharp chisel. Be careful not to move the sleeve. Good luck.
See pictures...... I could not get them into proper order so view #4 first.
IMPORTANT NOTES: If you are sleeving an area above the water pump impeller, the lower bearing and gasket (if one), the pump bottom plate, impeller and pump housing and gasket must be on the shaft before the sleeve is installed as the impeller bushing is too tight to go over the seal. It is best to do a physical fit up prior to installing the sleeve to ensure you get it right. The seals will go over the sleeve but be carefull and lubricate the seals well or the seal inner spring may shift which will require you to hold the spring in place with a finger and use a screwdriver to place the spring back into the proper position.
Measure the shaft with a micrometer in three places around the same area and determine an average diameter.
Go to your marina or local bearing supply company, the auto parts place or on line to buy a sleeve that has a range where the measurement you took is in the middle.
For example, I had an average of 0.750 and found a SKF Speedi-Sleeve that is designed for a shaft between .748 and .752 The length of this sleeve is 1/3 inch. The one I used is a SKF 99076. You can order odd sizes but they are expensive.
Read the instructions which warn against using heat and tells you to use a non hardeningt gasket compound in the groove as a filler. I use a little vasaline just in front of the seal to lubricate the shaft, it does not take much. In the past I have frozen shafts to shrink them and heated sleeves in an oven to expand them but it is best to get the proper size.
The sleeve comes with a driver and the driver fits against the bottom flange of the seal to drive it on. You are going to need a hardwood board with a hole drilled through it or a pipe. I used the board to drive the driver which drives the sleeve.
Be sure to mark the stopping point for the seal, I used tape. Be very careful not to mushroom the shaft ends, use soft wood on the ends.
After the seal is in place, you will need to remove the bottom flange. Note it has a pre-cut groove but you have to cut the flat part to get a pull point to peel it off. I use a file to cut a v notch then a sharp chisel. Be careful not to move the sleeve. Good luck.
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