OEM 2007 Buick Rainier Rocker Shaft Spring Kit

2007 Buick Rainier Rocker Shaft Spring Kit Parts and Q&A

• Q: How to replace the Rocker Shaft Spring Kit and valve stem oil seal on 2007 Buick Rainier?

  A: Start the Valve Stem Oil Seal and valve spring replacement project using these tools: valve stem seal remover and installer (J 38820), Camshaft sprocket holding tool (J 44222), valve spring compressor (J-44228-A), and crankshaft balancer remover (J 44226). Arrange valve train parts before taking them apart and place them back in their correct positions when finished. Set air pressure to 50 psi at the air compressor port before using it to pump up the cylinder to avoid turning the crankshaft. Lift the vehicle and take out the torque converter access plug at its base. Reposition the vehicle on the ground and insert the j 44226-3a 15 mm holding bar onto the torque converter bolt to lock the crankshaft. Install the j 44222 onto the cylinder head before any work on the timing chain components to keep them protected. Adjust both horizontal bolts in Camshaft sprockets to hold tension and steer the sprockets and timing chain off the camshafts. Set the Camshaft caps on a rack when you uninstall their bolts to reinstall them correctly later. After taking off the Camshaft caps and camshafts you should push air into the cylinder through an appropriate connector. Installation of j-44228-a enables compression of valve springs giving access to remove valve keys which you can then take off j-44228-a. Afterward detach valve spring retainer and valve spring from j 38820 tool. Before adding oil to valve stems inspect and ready the cylinder head for valve stem lubrication with engine oil. After applying the j 38820 to install the valve seals put the valve spring followed by valve spring retainer. Press valve springs with the j-44228-a tool until you can add valve keys. Then remove the j-44228-a tool before releasing the trapped air from the cylinder. Apply clean engine oil to every Camshaft surface and lubricate the valve stems with the same oil before placing the camshafts back in their designated positions. Place the Camshaft caps on their direct journals and tighten cap bolts to 12 n.m (106 lb in). Transfer the Camshaft sprockets back to their camshafts before taking out the j 44222. Reinstall the intake Camshaft sprocket components by tightening the bolt to 20 n.m in two steps. Also reinstall the new exhaust Camshaft actuator bolt to specified torque. Start by tightening the exhaust Camshaft actuator bolt to 25 n.m (18 lb ft) during the first stage and perform the final stage by spinning the j 36660-a 135 more degrees. Afterward, fit the spark plugs and Camshaft cover before lifting the vehicle for further work. Install the access plug into the torque converter hole while also taking out the j 44226-3a wrench. Lower the vehicle afterward.