GM 10224885
Vibration Damper

Removing the crankshaft balancer begins when the technician first disconnects the negative Battery Cable then removes the Fan Shroud assembly and Drive Belt from the system. The prevention of crankshaft damage requires users to insert a shorter bolt in the crankshaft before employing j 23523-f (J 23523-F) balancer removal tool. Start by removing the crankshaft balancer bolt together with its washer before you proceed to take off the bolts securing the Crankshaft Pulley. During crankshaft balancer removal apply the j23523-f plate followed by tightening its bolts to 25 nm (18 ft. Lbs.), before inserting the j23523-f forcing screw to rotate clockwise for removal. Clean the crankshaft balancer with cleaning solvent and dry it with compressed air as you check for any loose front groove pins as well as worn or damaged crankshaft front oil sealing surface , deteriorated rubber , damaged keyway , or damaged bolt hole threads . Apply grease to the oil seal sealing surface of the new balancer and position the front groove pin correctly while installing. To secure the balancer onto the crankshaft use the j 23523-f tool. First apply gm p/n 12346141 (Canadian P/N 10953433) adhesive to the keyway following by pressing the tool onto the crankshaft key. After that, tighten the plate bolts to 25 nm (18 ft. Lbs.). Subsequently install the j 23523-f screw, bearing, washer, and nut then rotate the nut giving it enough time to settle against the crankshaft position sensor reluctor ring. Use the j 23523-f to install the Crankshaft Pulley bolts which need to be tightened to 58 nm (43 ft. Lbs.) before installing the crankshaft balancer washer and bolt secured with 95 nm (70 ft. Lbs.). Reinstall all components by replacing the Drive Belt followed by the Fan Shroud assembly and restoring connection to the negative Battery Cable.

Service and repair of harmonic balancers should start with step one which involves removing the Fan Shroud assembly and Drive Belt. Clean each Harmonic Balancer component while inspecting all parts after removing it from the system. Grease the sealing surface of the reinstalled harmonic front cover oil seal and put it into position with the Harmonic Balancer. When finished with the installation reinstall both the Drive Belt and the Fan Shroud assembly. During the procedure use Fan Shroud assembly (part number), Drive Belt (part number) and Harmonic Balancer (part number) as your required tools.

The replacement process for crankshaft balancer starts by disconnecting the negative Battery Cable then removing both Fan Shroud assembly and Drive Belt. The crankshaft will stay intact by putting a brief bolt of similar threads than crankshaft balancer bolt before operating the balancer removal tool. The crankshaft balancer bolt with washer requires removal before you proceed to take out the bolts and Crankshaft Pulley. The procedure to extract the crankshaft balancer requires balancer remover and installer (J 23523-F) implementation with the steps including installation of j 23523-f plate and bolts followed by tightening bolts to 25 nm (18 ft. Lbs.), and subsequent clockwise rotation of j 23523-f forcing screw. Clean the crankshaft balancer with cleaning solvent before air-drying it while inspecting for loose front groove pins and damage to the crankshaft front oil sealing surface and deteriorated rubber material between the hub and outer ring as well as keyway wear and bolt hole thread damage. To use the oil seal again apply light grease to its sealing surface while positioning the front groove pin in the correct way. Put adhesive gm p/n 12346141 or equivalent on the crankshaft balancer keyway before you position it correctly with the crankshaft key and fit the balancer onto the crankshaft. The j 23523-f tool enables installation of the crankshaft balancer while plate bolt torques to 25 nm (18 ft. Lbs.) before adding bearing and washer with nut installation following clockwise rotation until the reluctor ring makes contact with the hub. Space the j 23523-f tool, fit the Crankshaft Pulley with its bolts while tightening to 58 nm (43 ft. Lbs.), check the crankshaft balancer washer crown orientation points toward the engine exterior while installing both washer and bolt then torque the balancer bolt to 95 nm (70 ft. Lbs.). Reinstall the Drive Belt while also conducting the Fan Shroud assembly installation followed by negative Battery Cable reconnection.

One should begin crankshaft balancer replacement by removing both the Drive Belt and cooling fan. A shorter bolt matching the crankshaft balancer bolt should be inserted into the crankshaft before using j 23523-f (J 23523-F) to prevent crankshaft damage. Begin by taking out both the crankshaft balancer bolt along with washer then move to extract the Crankshaft Pulley bolts and pulley. The procedure of removing and reinstalling the crankshaft balancer requires j 23523-f which should have its j 23523-f plate and bolts installed on the balancer while torquing bolt sets to 25 nm (18 ft. Lbs.). You should insert the j 23523-f forcing screw into the plate before rotating it clockwise to take out the balancer. Record the position and length of each balancer weight before cleaning and inspecting the balancer unit. If using a reused seal on the crankshaft front cover remove a small amount of grease for effective sealing. Apply a minimal amount of grease to the crankshaft front cover seal after ensuring the balancer weight(s) occupy proper positions during seal reuse. Apply adhesive into the crankshaft balancer keyway to seal the joint and position the keyway properly for the balancer and crankshaft while using j 23523-f to push the balancer onto the shaft. After installing the j 23523-f plate and bolts with a torque of 25 nm (18 ft. Lbs.) put in the j 23523-f forcing screw, bearing, washer, and nut before turning the nut clockwise until the balancer hub meets the crankshaft position sensor reluctor ring. Place the j 23523-f aside before installing the Crankshaft Pulley followed by its bolts. Begin by lightly tightening the bolts then finish tightening them to 58 nm (43 ft. Lbs.). Position the crankshaft balancer washer crown toward the opposite direction of the engine then add the washer and bolt along with torqueing the bolt to 95 nm (70 ft. Lbs.). Afterwards, restore the cooling fan and Drive Belt.

The first task for Crankshaft balancer replacement requires belts and fans to be extracted first. The Crankshaft needs protection so a short bolt must be added before using the j 23523-f (Crankshaft Balancer Remover and Installer) to remove the Crankshaft balancer bolt along with washer before proceeding to detach the Crankshaft Pulley along with bolts. The j 23523-f should be used to remove the Crankshaft balancer but the plate bolts must get tightened to 25 nm (18 lb ft) and the forcing screw needs to have its clockwise rotation for removal. Clean the Crankshaft balancer while also inspecting it for damages, write down the weight position and their length. The installation process requires Crankshaft front cover seal greasing if you plan to use it again while also verifying that balancer weights occupy their proper positions. Install the Crankshaft balancer keyway using j 23523-f tool then align the key with Crankshaft key while you push the balancer onto the Crankshaft. Tighten plate bolts to 25 nm (18 lb ft) before placing the forcing screw along with the bearing and washer and nut before moving the nut clockwise to face the reluctor ring. Put the Crankshaft Pulley and its bolts in place and torque them to 58 nm (43 lb ft) and maintain the Crankshaft balancer washer crown on the opposite side of the engine before bolt installation at 95 nm (70 lb ft). Close the process by placing back the cooling fan and Drive Belt.

A replacement procedure for crankshaft balancer starts by disconnecting the Battery Cable's negative end then continuing with removing both the Fan Shroud assembly and Drive Belt. After removing the crankshaft balancer bolt with its washer you must detach the bolts which hold the Crankshaft Pulley in place. Use the balancer remover and installer (J 23523-F) to uninstall a crankshaft balancer by mounting the j 23523-f plate with bolts onto the component before torquing bolts to 25 nm (18 ft. Lbs.), then placing the j 23523-f forcing screw into this plate. To extract the balancer the j 23523-f forcing screw should be rotated clockwise before tool removal. Check the position and length of front groove pins when present before thoroughly cleaning all parts for inspection. The front seal of the crankshaft front cover requires application of grease during reinstallation when using the existing seal while maintaining proper position of the front groove pin. Place gm p/n 12346141 adhesive or an equivalent substance onto the crankshaft balancer keyway then position this mark with the balancer key before you fasten the balancer to the crankshaft. Start by placing the j 23523-f onto the crankshaft using its plate and bolts which need to be tightened to 25 nm (18 ft. Lbs.). Proceed to add the j 23523-f screw then the bearing and washer followed by the nut until the balancer hub rests against the crankshaft position sensor reluctor ring during a clockwise rotation. The j 23523-f should be removed while you install the Crankshaft Pulley and bolts with 58 nm (43 ft. Lbs.) torque value. Then align the crankshaft balancer washer crown to face outward from the engine before installing the washer and bolt which must be tightened to 95 nm (70 ft. Lbs.). Reinstall the Drive Belt before adding the Fan Shroud assembly and then reattach the battery negative cable.

Starting the Harmonic Balancer repair process requires disconnecting the battery negative cable. You must first perform two steps: disassemble the Fan Shroud assembly and remove the Drive Belt. Before using a Harmonic Balancer removal tool the end of the Crankshaft requires protection so use a short bolt with matching threads to the Harmonic Balancer bolt. This bolt provides a surface for tool engagement without damaging Crankshaft threads. The tool needs a surface to push against which the installation of a shorter bolt with matching threads on the Crankshaft protects from thread destruction. The next step is to remove the Harmonic Balancer before cleaning every piece for inspection. For reusing the seal at the Crankshaft front cover apply a small amount of grease first while placing the Harmonic Balancer then add the Drive Belt and Fan Shroud assembly during the installation process. Reestablish connection to the battery's negative cable as the last step.

The first step to replace a crankshaft balancer involves removing either the air conditioning belt when there is one or the accessory belt if there is no air conditioning system. Beginning by removing the Starter motor and lower Fan Shroud the technician should check that the Flywheel holding tool (J 42386-A) establishes tooth engagement with the engine Flywheel. Use one m10-1.5 x 120 mm bolt and one m10-1.5 x 45 mm bolt to fasten the j 42386-a before tightening them to 50 nm (37 ft. Lbs.). The bolt securing the crankshaft balancer needs removal for later reuse during the installation process. The crankshaft balancer remover (J 41816) combined with the crankshaft end protector (J 41816-2) allows you to remove the crankshaft balancer after cleaning and inspecting it. Then install the crankshaft balancer by aligning it directly on the crankshaft followed by the use of crankshaft balancer and sprocket installer (J 41665). Use the threaded rod along with its nut and washer along with the installer to start installation at the front end of the balancer. Hold the threaded rod hex section using a wrench while turning the installation tool nut clockwise with another wrench until the first part of crankshaft installation completes. Use the installation tool to drive the bigger end of the balancer against the front section until the complete installation is achieved. The previous crankshaft balancer bolt should be installed before tightening it to 330 nm (240 ft. Lbs.). Next remove the bolt. Measure the installation position of the balancer again; if necessary use the j 41665 to reinstall correctly. You should use a new crankshaft balancer bolt which requires an initial torque of 50 nm (37 ft. Lbs.) followed by the 140 degrees setting measured with the torque angle meter (J 36660-A). The procedure completes with Starter motor installation followed by lower Fan Shroud adjunction along with accessory Drive Belt installation unless a/c is present and its Drive Belt installation until executing the crankshaft position learn sequence.

The crankshaft balancer replacement process starts with removing the Fan Shroud assembly before you detach the Drive Belt and the crankshaft balancer. The crankshaft front cover oil seal sealing surface requires cleaning then inspection and it requires greasing with a small amount when you decide to reutilize the seal. Follow the installation steps by adding the crankshaft balancer after which you should install the Drive Belt prior to reattaching the Fan Shroud assembly.

Removing the crankshaft balancer begins when the technician first disconnects the negative Battery Cable then removes the Fan Shroud assembly and Drive Belt from the system. The prevention of crankshaft damage requires users to insert a shorter bolt in the crankshaft before employing j 23523-f (J 23523-F) balancer removal tool. Start by removing the crankshaft balancer bolt together with its washer before you proceed to take off the bolts securing the Crankshaft Pulley. During crankshaft balancer removal apply the j23523-f plate followed by tightening its bolts to 25 nm (18 ft. Lbs.), before inserting the j23523-f forcing screw to rotate clockwise for removal. Clean the crankshaft balancer with cleaning solvent and dry it with compressed air as you check for any loose front groove pins as well as worn or damaged crankshaft front oil sealing surface , deteriorated rubber , damaged keyway , or damaged bolt hole threads . Apply grease to the oil seal sealing surface of the new balancer and position the front groove pin correctly while installing. To secure the balancer onto the crankshaft use the j 23523-f tool. First apply gm p/n 12346141 (Canadian P/N 10953433) adhesive to the keyway following by pressing the tool onto the crankshaft key. After that, tighten the plate bolts to 25 nm (18 ft. Lbs.). Subsequently install the j 23523-f screw, bearing, washer, and nut then rotate the nut giving it enough time to settle against the crankshaft position sensor reluctor ring. Use the j 23523-f to install the Crankshaft Pulley bolts which need to be tightened to 58 nm (43 ft. Lbs.) before installing the crankshaft balancer washer and bolt secured with 95 nm (70 ft. Lbs.). Reinstall all components by replacing the Drive Belt followed by the Fan Shroud assembly and restoring connection to the negative Battery Cable.

The replacement process for the Crankshaft balancer starts with air conditioning Drive Belt and cooling fan and shroud and Starter motor removal and matching the Flywheel teeth of j 42386-a (Flywheel Holding Tool). The j 42386-a requires installation with an m10-1.5 x 120 mm bolt and an m10-1.5 x 45 mm bolt and needs to be tightened to a torque value of 50 nm (37 lb ft). The Crankshaft balancer bolt (139) remains in use for installation but must be detached first. The j 41816 (Crankshaft Balancer Remover) and j 41816-2 (Crankshaft End Protector) must be attached to the Crankshaft balancer (138) to remove it. The process for balancer installment begins by installing it on the Crankshaft followed by using the j 41665 (Crankshaft Balancer and Sprocket Installer) together with the threaded rod from the j 41478 (Crankshaft Front Oil Seal Installer) to complete the installation. Tighten the used Crankshaft balancer bolt (139) to 330 nm (240 lb ft) then remove it. Use the installation procedure again when the Crankshaft nose does not reach 2.4-4.48 mm (0.094-0.176 in) into the balancer bore. Through j 45059 (Angle Meter) torque the new Crankshaft balancer bolt (139) with initial force of 50 nm (37 lb ft) followed by 140 degrees final torque. The procedure ends with removing j 42386-a and bolts then reinstalling both the Starter motor and cooling fan and shroud together with the air conditioning Drive Belt before executing the Crankshaft position system variation learn procedure.

One should begin crankshaft balancer replacement by removing both the Drive Belt and cooling fan. A shorter bolt matching the crankshaft balancer bolt should be inserted into the crankshaft before using j 23523-f (J 23523-F) to prevent crankshaft damage. Begin by taking out both the crankshaft balancer bolt along with washer then move to extract the Crankshaft Pulley bolts and pulley. The procedure of removing and reinstalling the crankshaft balancer requires j 23523-f which should have its j 23523-f plate and bolts installed on the balancer while torquing bolt sets to 25 nm (18 ft. Lbs.). You should insert the j 23523-f forcing screw into the plate before rotating it clockwise to take out the balancer. Record the position and length of each balancer weight before cleaning and inspecting the balancer unit. If using a reused seal on the crankshaft front cover remove a small amount of grease for effective sealing. Apply a minimal amount of grease to the crankshaft front cover seal after ensuring the balancer weight(s) occupy proper positions during seal reuse. Apply adhesive into the crankshaft balancer keyway to seal the joint and position the keyway properly for the balancer and crankshaft while using j 23523-f to push the balancer onto the shaft. After installing the j 23523-f plate and bolts with a torque of 25 nm (18 ft. Lbs.) put in the j 23523-f forcing screw, bearing, washer, and nut before turning the nut clockwise until the balancer hub meets the crankshaft position sensor reluctor ring. Place the j 23523-f aside before installing the Crankshaft Pulley followed by its bolts. Begin by lightly tightening the bolts then finish tightening them to 58 nm (43 ft. Lbs.). Position the crankshaft balancer washer crown toward the opposite direction of the engine then add the washer and bolt along with torqueing the bolt to 95 nm (70 ft. Lbs.). Afterwards, restore the cooling fan and Drive Belt.

Start the crankshaft balancer replacement by taking off the Drive Belt together with the cooling fan. When using a crankshaft balancer removal tool install a bolt shorter than the crankshaft balancer bolt which has matching threads inside the crankshaft before proceeding. Start by removing the crankshaft balancer bolt with its washer then proceed to take off both crankshaft pulley bolts and pulley. Use the crankshaft balancer remover and installer (J 23523-F) to take off and position again the crankshaft balancer. Apply j 23523-f plate and its bolts to the crankshaft balancer and secure the bolts at 25 n.m (18 lb ft) torque before inserting j 23523-f forcing screw into the plate to rotate the balancer off with clockwise torque. Take note of the balancer weights' position and length before cleaning and inspection of the balancer when needed. To reuse the front cover seal, apply a minimal amount of grease on the sealing surface before installing while keeping the balancer weight(s) in their correct positions. Put adhesive into the keyway of the crankshaft balancer before aligning it with the key to mount it on the crankshaft. Press the balancer onto the crankshaft by using the j 23523-f while you install the j 23523-f plate and its bolts with a torque setting of 25 n.m (18 lb ft). The threaded assembly of j 23523-f forcing screw, bearing, washer, and nut needs clockwise rotation until the balancer hub contacts the crankshaft position sensor reluctor ring. Put in the crankshaft pulley followed by its bolts and complete their installation by stowing them with 58 n.m (43 lb ft) torque values. Direction the crown of the crankshaft balancer washer so it points away from the engine before installing the washer on top of the bolt then torquing it to 95 n.m (70 lb ft). Reposition the cooling fan and Drive Belt in its proper place.

Uninstall the crankshaft balancer by disconnecting the battery negative cable, then remove the Drive Belt and the Fan Shroud assembly. Use crankshaft balancer remover and installer (J 23523-F) to detach crankshaft balancer, clean, and inspect all parts. For installation, start by fitting the crankshaft balancer, refitting the Drive Belt and Fan Shroud assembly, and lastly, reconnecting the battery negative cable.

Apply adhesive GM P/N 12346141 to the crankshaft balancer keyway, align it with the crankshaft key, and press the balancer onto the crankshaft using the J 23523-F.

Align it with the crankshaft balancer key and install the balancer onto the crankshaft.

Disconnect the battery negative cable.

Reverse the installation tool and continue tightening until the balancer is fully installed.

Use the Crankshaft Balancer Remover and Installer (J 23523-F) to remove the crankshaft balancer.

First, remove the fan shroud assembly and the drive belt.

Apply a small amount of grease.

Install the J 23523-F plate and bolts, tighten them to 25 Nm (18 ft. lbs.), and then use the forcing screw to rotate clockwise for removal.

Clean and inspect all parts.

Reverse it to fully install the balancer.

Tighten them to 58 Nm (43 lb ft).