This information might be helpful if you are changing the pulley yourself.
Both the shop manual and instructions for the FRPP ProCal tune/pulley kit state the engine cover between the seats must be removed to release the tension on the supercharger tensioner pulley to remove the belt. This is not the case. It is actually easier to access the tensioner from underneath the car with only the forward engine pan removed.
If you look through the space between the engine block and oil pump drive assembly, the tensioner pulley can be clearly seen. The tensioner accepts the end of a 1/2 " drive ratchet/extension bar. The tensioner arm is squared off on the end so it is easy to see how the 1/2" drive needs to be oriented on the tensioner. Use a 1/2" drive breaker bar with a 3" extension. Insert the extension and rotate towards the passenger side until it stops. You can then have someone work the belt loose from the top.
You can see in the picture below that I removed the 3 plastic zip ties holding the hoses running just above the forward edge of the pan to get more room. I also removed the oil pump belt cover to inspect the belt, but you don't need to remove it to access the tensioner.
You can see all 6 of the supercharger belt pulleys from below to confirm the belt is properly located on the pulleys when you reinstall the belt. Accessing the tensioner from below eliminates all the hassles and risk of damage when working through the engine cover (which has a factory applied butyl sealer).
If you have a lift available, the job is even easier and can be done by yourself. I used a motorcycle strap wrapped around the runner of the lift and soft tie to snug the tensioner in its released position. I then worked the belt loose from the top.
For those familiar with the GT500 supercharger, the VMP pulley/installation tool will not work to install the new pulley because the shaft of the GT's supercharger is not threaded. The pulley must be installed as per the manual. However, the VMP tool can be used to remove the pulley.
Finally, if anyone doubts the need for oil separators on Ford mod motors, take a look at these pictures (at about 7,000 miles):
The mod motors push quite a bit of oil through the PCV system, mostly on the passenger side. This is how much came out of the passenger side separator on our 2013 Mustang GT after only 750 miles:
My '08 GT500 is only slightly better.
Both the shop manual and instructions for the FRPP ProCal tune/pulley kit state the engine cover between the seats must be removed to release the tension on the supercharger tensioner pulley to remove the belt. This is not the case. It is actually easier to access the tensioner from underneath the car with only the forward engine pan removed.
If you look through the space between the engine block and oil pump drive assembly, the tensioner pulley can be clearly seen. The tensioner accepts the end of a 1/2 " drive ratchet/extension bar. The tensioner arm is squared off on the end so it is easy to see how the 1/2" drive needs to be oriented on the tensioner. Use a 1/2" drive breaker bar with a 3" extension. Insert the extension and rotate towards the passenger side until it stops. You can then have someone work the belt loose from the top.
You can see in the picture below that I removed the 3 plastic zip ties holding the hoses running just above the forward edge of the pan to get more room. I also removed the oil pump belt cover to inspect the belt, but you don't need to remove it to access the tensioner.
You can see all 6 of the supercharger belt pulleys from below to confirm the belt is properly located on the pulleys when you reinstall the belt. Accessing the tensioner from below eliminates all the hassles and risk of damage when working through the engine cover (which has a factory applied butyl sealer).
If you have a lift available, the job is even easier and can be done by yourself. I used a motorcycle strap wrapped around the runner of the lift and soft tie to snug the tensioner in its released position. I then worked the belt loose from the top.
For those familiar with the GT500 supercharger, the VMP pulley/installation tool will not work to install the new pulley because the shaft of the GT's supercharger is not threaded. The pulley must be installed as per the manual. However, the VMP tool can be used to remove the pulley.
Finally, if anyone doubts the need for oil separators on Ford mod motors, take a look at these pictures (at about 7,000 miles):
The mod motors push quite a bit of oil through the PCV system, mostly on the passenger side. This is how much came out of the passenger side separator on our 2013 Mustang GT after only 750 miles:
My '08 GT500 is only slightly better.
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