How much torque should a crank bolt have?
Crankset, Bottom Bracket and Pedal Area
| Component | Type/Brand | Newton Meters |
|---|---|---|
| Crank bolt (including spline-type cranks and square-spindle cranks) | Shimano® Octalink® XTR® (M15 thread) | 40.3–49 |
| Campagnolo® | 32–38 | |
| Campagnolo® Ultra-Torque® | 42 | |
| FSA® M8 bolt | 34–39 |
What is the torque on harmonic balancer bolt?
Torque Ratings Smaller Chevy models should have the harmonic damper bolt set to 60 foot-pounds. Larger Chevy vehicles should have a torque of 85 foot-pounds. Hemi426, smaller Chrysler and larger Chrysler motors should have a harmonic damper bolt set to 135 food-pounds.
How tight should a crank be?
Registered. Most square taper crank arms should be 29 ft-lbs. That is pretty darn tight. As has been mentioned, if it came loose, the crank arm is likely damaged beyond repair already and needs to be replaced.
Can you over tighten crank arm?
Yes, it is possible The bigger problem with over tightening a square taper is that crank arm can be deformed to the point where it will not stay tight. I always use a torque wrench when tigtening crank bolts to avoid over tightening.
What direction does the crank pulley bolt loosen?
The crank pulley bolt is loosened by turning counterclockwise. Keep in mind that the bolt is on at 135ft lbs of torque. If it has been more than 2-3 years since bolt last removed, then when you add the corrosion buildup to the equation, the bolt is most likely on at 200-250 ft lbs of torque.
What size socket for the front crank pulley?
The crank pulley must first be removed. A 15/16″ socket, three very long 8 x 1.0 bolts (pretty sure that is the size, some large washers, and a crank pulley pulley will be required. With the crank pulley removed mark the bracket where the old crank sensor is located so that the new sensor can be placed in exactly the same position.
What is a crank pulley?
In many cases, the term crankshaft pulley is used to describe the pulley that comes with the vehicle, while crank pulley refers to a component that is installed as an aftermarket upgrade, though the terms are interchangeable. This pulley transfers energy to the air conditioning, stereo, and alternator, among other components.