how do the spec-s of an air impact wrench relate to the air compressor? i need to loosen a crankshaft pulley bolt that is torqued at 134 ft- lb. on a 1998 honda civic LX. i have a sears craftsman 1.5hp 4- gallon 4.7SCFM@40psi--3.3SCFM@90psi air compressor. i don't yet have an air impact wrench. what should i look for in terms of psi when i go to buy one, such that i can use that air compressor to drive the impact wrench to loosen the bolt? tia.
- posted
15 years ago