OEM Buick Rainier Rocker Shaft Spring Kit

Buick Rainier Rocker Shaft Spring Kit Parts and Q&A

• Valve Springs
  12596078
  Q: How to replace the Rocker Shaft Spring Kit and valve stem oil seal on Buick Rainier?

  A:

  Collect the essential tools for the Valve Stem Oil Seal and valve spring replacement: valve stem seal remover and installer (J 38820), Camshaft sprocket holding tool (J 44222), and valve spring compressor (J 44228). Start by removing the cam cover and Spark Plugs before taking out the exhaust and intake sprocket bolts. Put on the Camshaft sprocket holding tool (J 44222) to keep Timing Chain parts secure during replacement and apply both horizontal bolts into Camshaft sprockets to keep chain tension. Reverse the camshafts by separating their sprockets and timing chains while taking out the Camshaft bolt caps to organize them for later use. After taking off the Camshaft caps you need to compress the valve using a valve spring compressor (J 44228) with a suitable air cylinder adapter. Take out the valve keys and place the valve spring compressor (J 44228) next. Put the valve spring retainer and valve in the same direction. The valve stem seal remover and installer-tool j 38820 helps you remove seals before you clean and inspect the Cylinder Head. Insert sealed valve seals into the valve stems with the valve stem seal remover and installer (J 38820) after oiling them with the clean engine oil. Install the valve spring and valve spring retainer last. Store 80% valve spring compression using the valve spring compressor (J 44228) while you put on valve keys above the spring retainer and off the tool. As you put back the camshafts, apply clean engine oil to their joints plus the thrust plate and Camshaft top. After tightening caps to 12 nm (106 inch lbs.) reinstall the sprocket components and remove the Camshaft sprocket holding tool (J 44222). Put on the intake Camshaft sprocket washer and bolt along with the exhaust Camshaft actuator bolt. Tighten the intake Camshaft sprocket bolt at 20 nm (15 ft. Lbs.) during the initial stage before finishing the installation with the torque wrench (J 36660-A) at 100°. Use the torque wrench j 36660-a on the exhaust Camshaft actuator bolt for an additional 135° after screwing it in by hand to 25 nm (18 ft. Lbs.). Place the spark plugs into their designated locations and put on the Camshaft cover last.