I’ve noticed the crankshaft pulley on some Mazda engines don’t have keys. What is the proper installation procedure? The AERA Technical Committee offers the following information regarding crankshaft pulley replacement for 2001-2005 Mazda 2.0L and 2.3L engines. The crankshaft pulley is not keyed to the crankshaft on these engines. If...
I’ve had complaints of broken exhaust manifold bolts on some 5.4L Ford engines. Is there an upgrade available? The AERA Technical Committee offers the following information regarding broken exhaust manifold bolts on 1999-2005 Ford 5.4L VIN L engines. This information applies to non-supercharged Ford truck engines. Generally, this condition is...
The AERA Technical Committee says the following information should be considered any time a cylinder head is installed on 2001-2005 GM 8.1L VIN E and G engines. Three different length mounting bolts are used to secure the cylinder heads for these engines as shown in Figure 1. These bolts are...
Bedplate removal and replacement procedures for 2003-’06 Chrysler /Jeep 3.7L V6 VIN K engines are very detailed so follow carefully to avoid unnecessary component replacement. Removal Remove oil pump. Do not pry on the oil pan gasket when removing the oil pan. The oil pan gasket is mounted to the...
I’ve had complaints of a ticking noise on some Chrysler 3.2L and 3.5L engines. Can you offer any solutions? The AERA Technical Committee offers the following information regarding a ticking sound on 1998-2004 Chrysler 3.2L and 3.5L VIN J, G, K, M and V engines. This noise is associated only...
What’s the story on piston cooling tubes for Navistar diesel engines? The AERA Technical Department says that the piston cooling tube design on Navistar DT 466 and 570 diesel engines has been revised, and this information should be considered anytime the tubes are removed for service on engines with a...
I’ve had difficulty in locating intake manifold kits for GM 3.8L engines. What gives? The AERA Technical Committee offers the following information regarding a revised upper intake manifold for 1995-2004 GM 3.8L VIN K engines. Engines manufactured for the 2005 model year include the revised gasket. With the recent availability...
I’ve had complaints of a strange rattling noise on some 4.0L Rover engines, any ideas? The AERA Technical Committee offers the following information regarding rocker arm noise on 1997-2001 4.0L Rover engines. Customer complaints of a rattling/tapping noise from the engine have been found to originate from the rocker shaft...
The AERA Technical Committee offers the following information regarding the piston oil clearance on 1992-2004 Mitsubishi 4D34 and 6D34 diesel engines. Engine builders have reported occasional piston to cylinder wall scuffing shortly after rebuilding these engines. The engines have failed pistons in multiple cylinders at the skirt’s largest diameter. AERA...
We’ve had complaints about timing belts loosening on some Acura 3.2L engines. Do you know of any solutions? The AERA Technical Committee offers the following information regarding a revised timing belt tensioner for 2002-2003 Acura 3.2L engines. This tensioner is part of a product improvement by Acura. Vehicles with the...
Have you heard of any solutions for coolant loss and an oil leak on a 1.6L Honda Civic? The AERA Technical Committee offers the following information regarding a cylinder head gasket leak on 1988-’95 1.6L Honda Civic engines. This information does not apply to the VTEC engines. You may have...
We’ve had complaints of recurring oil leaks on some Navistar 7.3L diesel engines. Can you offer any solutions? There have been reports of engine oil leaks on 1994-2003 Navistar 7.3L diesel engines. These leaks most often occur shortly after cylinder head service has been completed. To reduce the likelihood of...
How do I properly install and time the camshafts on an Isuzu 3.2L V6? The AERA Technical Committee offers the following information on camshaft installation and timing procedure for Isuzu 1998-2000 3.2 and 3.5L DOHC V6 engines. There are a number of steps you must follow to install and set...
I have found differing torque values published for the 1.8L Toyota engine. What are the correct torque values? The AERA Technical Committee offers the following information regarding main bearing bolt torque specifications for 1998-2003 Toyota 1.8L 1ZZFE and 2ZZEGE engines. There has been some confusion as to the correct torque...
I’ve been having trouble installing a cam timing gear on a 1.8L Toyota. Any advice? The AERA Technical Committee offers the following information regarding the camshaft timing gear installation for 1998-2003 Toyota 1.8L 1ZZFE engines. Some difficulty has been expressed while installing this gear as the gear rotates within its...
Are there different engine-to-transmission dowels on Chrysler SOHC V6 engines? The AERA Technical Committee offers the following information regarding engine-to-transmission dowels on 1998 and 1999 Chrysler 3.2L and 3.5L SOHC V6 engines. A change was made in March of 1998 to the engine-to-transmission locating dowel length and block counter bore....
What is the bedplate torque sequence for a Chrysler 4.7L? My manual doesn’t seem to list all the fasteners. The AERA Technical Committee offers the following information regarding the main bearing cap/bedplate bolt torque and sequence for 1999-2004 Chrysler 4.7L VIN N engines. This engine uses multiple fasteners at many...
When can I reuse connecting rods for Mercedes-Benz M111 engines? If you’re rebuilding Merecedes connecting rods for resale or reuse, pay attention to the following information from the AERA Technical Committee The 1994-’98 2.2L Mercedes Benz M111 engines. This information should be considered anytime machine work is being done for...
The AERA Technical Committee says that loss of engine coolant has been reported on 1997 Toyota 2.2L 5SFE engines in various amounts. In most cases, there are limited signs of this leakage on the ground directly below the engine compartment after it has set for a long period of time....
A. We have all seen the thrust bearing failures in the Ford 302/5.0L engine applications. Many if not most of them have occurred due to the insufficient depth of the pilot hole for the torque converter in the rear of the crankshaft when used in conjunction with an overdrive transmission,...
