tntcorvette
Well-known member
Here is a quick write up on the installation of my ASP underdrive crank pulley.
To install the pulley you must:
1. Prevent the crankshaft from moving. This was done by dropping the automatic transmission dust shield and inserting a screwdriver into the flexplate and preventing it from rotating. The screwdriver was between the flexplate and the transmission body.
2. Remove 4 bolts holding o.e.m. pulley in place. Easy thing to do. Then pry off with long bar or such, careful not to hit the harmonic balancer. I did this by using a long thin bar and wedging it against the o.e.m. crank pulley and the water pump housing.
3. Refering to step one, move the long screwdriver to opposite side of flexplate/transmission housing to prevent the crankshaft from moving in the opposite direction. You will be turning your socket wrench the opposite direction for install.
4. Clean and inspect bolts. If they are fine, apply permatex threadlock on the bolts and install new underdrive pulley and torque to factory spec's.
5. Install new shorter serpetine belt, remove screwdriver from flexplate, and reinstall dust shield. Lower car from jackstands.
One thing I had to do extra, is remove my cooling fan because my R/D Racing camber brace, which I love, would not allow me enough room to wiggle out the o.e.m. crank pulley from the lower engine bay area. Removing the single fan was easy via 4 bolts.
Attached is a picture of the o.e.m. pulley and the ASP underdrive pulley.
BTW, I got the ASP pulley from summit racing for $51. I'de say money well spent.
Enjoy!!!
*EDIT* For some reason, the picture of the pulleys is 146,000 bites and the max to post here is 85,000 and I cant get it to shrink. So if somebody want the picture and can shrink it and post it here, let me know and i'll email it to you.
To install the pulley you must:
1. Prevent the crankshaft from moving. This was done by dropping the automatic transmission dust shield and inserting a screwdriver into the flexplate and preventing it from rotating. The screwdriver was between the flexplate and the transmission body.
2. Remove 4 bolts holding o.e.m. pulley in place. Easy thing to do. Then pry off with long bar or such, careful not to hit the harmonic balancer. I did this by using a long thin bar and wedging it against the o.e.m. crank pulley and the water pump housing.
3. Refering to step one, move the long screwdriver to opposite side of flexplate/transmission housing to prevent the crankshaft from moving in the opposite direction. You will be turning your socket wrench the opposite direction for install.
4. Clean and inspect bolts. If they are fine, apply permatex threadlock on the bolts and install new underdrive pulley and torque to factory spec's.
5. Install new shorter serpetine belt, remove screwdriver from flexplate, and reinstall dust shield. Lower car from jackstands.
One thing I had to do extra, is remove my cooling fan because my R/D Racing camber brace, which I love, would not allow me enough room to wiggle out the o.e.m. crank pulley from the lower engine bay area. Removing the single fan was easy via 4 bolts.
Attached is a picture of the o.e.m. pulley and the ASP underdrive pulley.
BTW, I got the ASP pulley from summit racing for $51. I'de say money well spent.
Enjoy!!!
*EDIT* For some reason, the picture of the pulleys is 146,000 bites and the max to post here is 85,000 and I cant get it to shrink. So if somebody want the picture and can shrink it and post it here, let me know and i'll email it to you.
