Engine Builder Tech Center
Diagnose and repair repeated heater core leakage/failure on 1984-2003 Ford vehicles

Engine Builders: The AERA Technical Committee offers the following information that may help installers diagnose and repair repeated heater core leakage/failure on 1984-2003 Ford vehicles. This problem has been reported to occur shortly after engine work has been performed. Leaks may be caused by a chemical reaction called electrolysis. Electrolysis involves an ion exchange between

Head gasket selection for Toro Groundmaster and Roadmaster units with 1982-’99 Peugeot XUD9 diesel engines

Engine Builders: The AERA Technical Committee offers the following information for head gasket selection for Toro Groundmaster and Roadmaster units with 1982-’99 Peugeot XUD9 diesel engines. This information should be considered any time the head gasket is replaced. Four different head gasket thickness options are currently available and provide a variety of gasket thickness options

Revised cylinder head installation procedure for 1997-2002 GM 5.7L VIN G engines

Engine Builders: The AERA Technical Committee offers the following information on a revised cylinder head installation procedure for 1997-2002 GM 5.7L VIN G engines, Figure 1. This revised procedure should be used any time the cylinder heads are being installed and supersedes information found in earlierpublished service manuals. Previously published technical bulletin TB 1624 should

Cylinder liner adjustment and compression ring gasket thickness for Detroit Diesel Corporation (DDC) 71 Series diesel engines

Engine Builders: The following information regards cylinder liner adjustment and compression ring gasket thickness for Detroit Diesel Corporation (DDC) 71 Series diesel engines. This information should be considered any time liners are replaced. AERA previously published TB 206 concerning compression ring gaskets. This supplements that information. The correct position of the liner top flange is

Timing chain installation procedures on 1998-2002 Chrysler 2.7L DOHC Engines

Engine Builders: The following information may be helpful for your installers regarding timing chain installation procedures on 1998-2002 Chrysler 2.7L DOHC Engines. If the following procedure is not followed correctly, upon start up, valves will bend. Align crankshaft sprocket timing mark to the mark on oil pump housing. NOTE: Lubricate timing chain and guides with

Timing belt installation procedures on 1994-2001 Acura B18 Series engines

Engine Builders: The following information is for installers regarding timing belt installation procedures on 1994-2001 Acura B18 Series engines. Failure to follow these procedures could result in engine damage. Position the crankshaft and the camshaft pulleys as shown in Figure 1 before installing the timing belt. Set the crankshaft so that the No. 1 piston

Reports that some 1999-2001 GM 2.2L VIN 4 engines tend to generate a droning noise that is especially noticeable at approximately 950 rpm after cold start up.

Engine Builders: There have been reports that some 1999-2001 GM 2.2L VIN 4 engines tend to generate a droning noise that is especially noticeable at approximately 950 rpm after cold start up. GM has identified the source as a natural resonant vibration of the air conditioning alternator drive belt. A revised belt, p/n 12575450, made

Reports of needle bearings being found in the oil pan on some late model GM 4.8L-6.0L engines have been received.

Engine Builders: Reports of needle bearings being found in the oil pan on some late model GM 4.8L-6.0L engines have been received. According to AERA

Reduce the possibility of seized camshafts on 1990-

Engine Builders: The AERA Technical Committee has a suggestion to reduce the possibility of seized camshafts on 1990-

Revised information for main bolt tightening on 1992-

Engine Builders: The AERA Technical Committee offers the following revised information for main bolt tightening on 1992-

Coolant contamination of engine oil for 1996-2003 GM 3.1L or 3.4L VIN J & E engines

Engine Builders: The AERA Technical Committee offers the following information regarding coolant contamination of engine oil for 1996-2003 GM 3.1L or 3.4L VIN J & E engines due to failure of the intake manifold gasket. GM has redesigned a new intake manifold gasket (p/n 89017279) to reduce the chance of failure. The material used in

Increased crankshaft journal dimensions for 1995-2002 Kia 1.8L VIN 5 engines.

Engine Builders: The AERA Technical Committee offers the following information on increased crankshaft journal dimensions for 1995-2002 Kia 1.8L VIN 5 engines. The main journal diameter for the crankshaft of this engine was increased beginning with the 1998 model year. Mazda manufactured these engines prior to 1998 while Kia manufactured all subsequent engines. Use caution