OEM Buick Park Avenue Rod Bearing

Buick Park Avenue Rod Bearing Parts Questions & Experts Answers

• Rod Bearings
  89017700
  Q: How to replace the connecting rod bearing on Buick Park Avenue?

  A: To replace the connecting Rod Bearing, take out the Oil Pan and the connecting rod caps while rotating the Crankshaft as needed for access. Check the connecting rods and main bearing bores for excessive wear, gouges, foreign material trapped and mismatched side-to-side wear, and test for a bent Crankshaft or tapered bearing jounals, if necessary. Check the outer surfaces for wear, overheat, and looseness or rotation. Measure the rubbed surfaces for wear and grooving, torque the bearing cap to specifications. Check boil to ensure, there are no taper and out of round. Check the bearing cap bolts (1 and 2) and replace all stretched ones against using new bolts. To ascertain the correct size of the replacement insert using the method of measurement, check the bearing clearance by either using method a or b, with method a being preferred for reliability. Method a consists of obtaining reading of the Crankshaft journal with a micrometer, averaging those and ensuring that the bearing inserts are correctly installed and torqued to specifications. Method b requires installing all bearing inserts and the Crankshaft and placing gauging plastic across the bearing width, seating the bearing cap and getting the flattened gauging plastic. For installation, use the j36660-a torque angle meter to make sure that the bearing cap bolt holes and the mating surfaces have no spots of dirt and water. Dip the bolts on the bearing cap in clean engine oil, insert the inserts in the bearing cap as well as the engine block or connecting rod making sure that the same have protruded on both side and the insert tags engaged. Apply gm approved lubricant to the thrust surf ace on the main bearing insert, lubricate the bearing surface with clean engine oil, and install the crank shaft or conecting rod. Gently tap the bearing cap into place with a suitable tool and install the bearing cap bolts tightening them to 27 nm (20 ft. Lbs.) and then using the j36660-a, tighten the bolts an additional 50 degrees. Therefore, seat the Crankshaft thrust bearing by tapping it in both directions by using a wooden mallet, check whether there is any binding in the connecting rod, measure the end play of the Crankshaft, measure the side clearance of the connecting rod, and finally, install the Oil Pan.