-MD- Enforcer wrote:I'm working on a LN2 crank pulley, L61 trigger wheel crank pulley, and a LG0 "HO" sized crank pulley. The local machine shops are REALLY busy, so I might try for one BIG Group Purchase for all three at once.....thoughts? Looking for sometime in February.Better late than never. Hope to get my final quote back next week...FINALLY!!!!!!!!!!!
-MD- Enforcer wrote:Stock LD9 Crank Pulley bolt torque is 129 ft/lbs plus 90 degrees.
This is my recommendation. Which is very similar to RKSport, RSM, Unorthadox Racing, Apex Racing, and Custom Car Grillz pulleys procedures. I believe they all copied Unorthadox racing's procedure.
Aluminum Pulley Manufactures, Revised by Michael Davis wrote:
Installation Procedure for New Aluminum Crank Pulley
Refer to a Hayes, Cilton, or Factory Service Manual for proper & safe removal procedures.
1. Inspect Front crankshaft pulley seal for signs or wear. Replace if seal if hard or brittle. Please refer to a service manual for proper install procedures.
2. Lubricate the front seal and the sealing surface of the pulley with chassis Grease GM P/N 1051344 or equivalent.
3. Install the pulley onto the crankshaft indexing keyway. Tap into place using a rubber or sand filled mallet.
4. Hand tighten the remaining bolt and the washer.
5. Tighten the bolt to 80 ft-lbs. / 108.1 NM while using J 38122, Crankshaft Pulley Holder, to prevent crankshaft rotation. Put a mark on the socket next to one of the four marks on J 38122. This mark will represent the 0 degree mark.
Then further tighten the bolt by rotating the 27mm socket in a clockwise rotation 90 additional degrees. At 90 degrees the socket will index with the next mark on the J 38122 tool.
Recheck bolt torque after driving 5-10 miles. If bolt is loose re-torque, and recheck after driving 5-10 miles. Then ensure the bolt is still tight after driving an additional 25 miles.
This sequence should not need to be done more than once. If the bolt loosens after driving the last 25 miles, purchase a new bolt GM P/N 22531863 and washer GM P/N 22538202, and inspect all mating surfaces for burs or foreign debris. If new bolt and washer are purchased, start over at step one.
Enjoy!
DSMskyline wrote:Put me on the list for an alternator pulley. Maybe we can do a trade. I haven't forgotten about you. Well I did, but remembered again. lol.
-Z Yaaaa- wrote:hells yea! lightest underdrive pulley evar made!
Addicted to meth wrote:-Z Yaaaa- wrote:hells yea! lightest underdrive pulley evar made!
I believe the one ebay pulley I use to have was like 14 ounces.
Regardless Md does great work. Finally got a Alternator pulley of his. just need to install it now.