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Focus Sport Underdrive Crank Pulley Installation

This How-To Library article is for the FocusSport crank pulley, which as indicated on the FocusSport product information page, includes a 6061 aluminum lightweight crank underdrive pulley and a new Goodyear Gatorback accessory belt. The FocusSport crank pulley underdrives your accessories by 23%. This, in turn, decreases the drag on the engine, unleashing power that you never knew you had. And since the FocusSport (7.6 ounces) crank underdrive pulley is lighter than OEM (3 lbs. 4 ounces) crank pulley, you'll benefit from the weight reduction of rotating mass; resulting in a more responsive engine. FocusSport crank underdrive pulleys come in a red anodized finish. (Product description taken directly from the FocusSport product page...)

Compliments of myFordFocus.com Forum Member: jaymzr74

Cost: $129.00

Time to Complete: .5 - 1 hour

Tools Required:

• 10mm, 15mm, and 18mm sockets, utility knife, torque wrench, breaker bar or impact wrench(optional).

Instructions: (Click Images to Enlarge)

Note: It helps to have the car on a lift before you begin, though not too high up, as you'll need to get at teh top of the engine bay under the hood. If you don't have access to a lift, use a 2 ton jack stand.

1. Remove the plastic splash guard inside the right front fender well.
   • There are two 10mm bolts holding it to the fender.
   • After removing the bolts, it should pop right out.
   
   
2. Remove right front wheel.
   
3. Remove the bolt on the crank pulley
   • Use an impact wrench if you have access to one.
   • This bolt is a regular right-hand thread.
   
   
4. Install the new pulley on the crank.
   • There is a keyway on the crank that the pulley must fit over.
   • Push it firmly into place by hand first, to avoid binding when you torque it.
   
   
5. Torque the bolt to 85-91 lb-ft.
   • This is tricky if you don't have an impact, so try to find one.
   
   
6. Relieve the belt tensioner and route the new belt over the pulley and accessories.
   
7. Reinstall the plastic splash guard.
8. Put your front wheel back on.

Supporting Belt Diagrams

Zetec with A/C

Zetec withOUT A/C