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
Cylinder head bolt replacement for 1997-2003 Ford 6.8L VIN S engines.
Engine Builders: The AERA Technical Committee offers the following information regarding cylinder head bolt replacement for 1997-2003 Ford 6.8L VIN S engines. This engine requires new replacement cylinder head bolts any time the head is installed. Follow the procedure listed below after all components have been thoroughly cleaned and prepped. Ensure that all surfaces of
Improving engine balance on 1992-
Engine Builders: The AERA Technical Committee has issued the following information on improving engine balance on 1992-
Cylinder head stress plate for Caterpillar 3126 diesel engines.
Engine Builders: The AERA Technical Committee offers the following information regarding a revised cylinder head stress plate for Caterpillar 3126 diesel engines. Previously AERA published Technical Bulletin 1561 concerning a stress plate for this engine. The previously made plates covered a single cylinder and required multiple relocations of the plate to bore/hone all six cylinders.
Pinless intake valve yokes for Mack E-Tech diesel engines.
Engine Builders: The AERA Technical Committee offers the following information concerning pinless intake valve yokes for Mack E-Tech diesel engines. Beginning March 2, 2000 (engine s/n 0D0120), pinless valve yokes p/n 891gc328 were phased into production of all E-Tech engines. The pinless yokes are used for the inlet valves only. This change went into effect
Connecting rod bolt torque specifications used in various Allis Chalmers agricultural or industrial engines
Engine Builders: In an effort to clarify the confusion about connecting rod bolt torque specifications used in various Allis Chalmers agricultural or industrial engines, the AERA Technical Committee offers the following information. This information applies to both early and late style engines, as several different hardware combinations have been used in the 201, 301 and
A revised connecting rod cap screw for 1991-
Engine Builders: The AERA Technical Committee offers the following information regarding a revised connecting rod cap screw for 1991-
The lower intake manifolds on some Ford vehicle models are not fitting correctly after machining
Engine Builders: Some AERA members have reported that the lower intake manifolds on some Ford vehicle models are not fitting correctly after machining. To reduce the likelihood of coolant contamination of engine oil, a revised, thicker intake gasket is now available for the 3.8L and 4.2L Ford car and truck engines. These models have VIN
Cylinder head service for 1998-2002 Cummins 5.9L ISB/QSB engines
Engine Builders: The AERA Technical Committee offers the following information regarding cylinder head service for 1998-2002 Cummins 5.9L ISB/QSB engines, also known as "24 valve" or "4 valves per cylinder" engines (current service information is found in Bulletin 366193, revision 01 published in February 1999). Previously published service information may be incorrect due to updated