Toyota Supercharger: Squeak/Rattle Noises From Idler Pulley
This condition can be verified by removing the supercharger drive beltand checking the movement of the pulley on the shaft The pulley shouldnot slide fore and aft on the shaft. Affected Models: 4Runner, Tacoma, T100 and Tundra with 3.4L V6; supercharger assemblies with serial numbers from 10481 to 10990. Installation Procedure: 1. Loosen the drive
LPG Cylinder Head Conversions
The recent move to clean up inner city exhaust emissions has resulted in renewed interest in the use of LPG (Liquefied Petroleum Gas) as a motor fuel. Tax incentives are being offered to encourage fleet operators to convert to gaseous fuels and more vehicles are being offered by the OEMs that are already converted. What
Camshaft Ticking Noises on some 3.0L 4V Ford Duratec Engines
Some 2005-2007 Five Hundred, Freestyle, Montego, and 2006-2007 Fusion, Milan, 2006 Zephyr, 2006-2008 Escape and Mariner vehicles built 1/17/2006 thru 5/31/2007, equipped with the Ford 3.0L 4V Duratec engine with exhaust camshaft driven water pumps may exhibit a ticking noise from the left bank cylinder head with the engine at normal operating temperature. Engine Builders/Installers
Valve Adjustment Procedures for Nissan SR20DE Engines
Each cylinder contains two intake valves and two exhaust valves. Each pair of valves is operated by one Y-shaped rocker arm. One valve in each pair contains a rocker arm guide which is not adjustable. The matching valve contains a replaceable shim. A hydraulic lash adjuster (HLA) is also included in the system and acts
How To Quiet Down a Chirping 2005-
An installer or vehicle owner may complain about a chirp coming from the lower timingbelt area. The noise is most often noticed at idle, usually after theengine has warmed up. The probable cause is that the idler pulleymounting surface is tilted, causing the edge of the timing belt to rubagainst the side of the pulser
How To Verify Proper Valve Train Geometry
The following is a method of verifying proper valve train geometry. After you have estimated the required pushrod length using a Pushrod Length Checker, use this method to verify that the valve train geometry is correct (using the rockers you are using in your engine): 1. The first step is to install a solid
Dowel Pin Alignment Caution for Nissan Engines
The following information may help you and your installer customers avoid damage to engine parts and components. Cylinder Block/Transmission Dowel Pins (Figure 1) 1. Alignment dowels are installed between the cylinder block and transmission. They ensure accurate alignment of the crankshaft to the transmission input shaft. 2. If you replace an engine or transmission you
Engine Builder Shop Solutions: August 2009
Gasket Surface Cleaning Caution Cleaning gasket surfaces can be a terrible thing to do! Many of today’s cylinder heads, and various parts are made of aluminum. The use of cleaning discs can damage the surface being cleaned by actually removing some of the surface being cleaned. There are also dangers of getting fibers from the
Five Ways To Break The Nose of a Crankshaft
Scat Crankshafts has determined that 99 percent of the time it is the parts that are being used in conjunction with the crank and the additional machining done to the parts that are being used with the crank that are mostly responsible for crank breakage, NOT the crank. 1. IMPROPER MACHINED CRANK GEARS • Champher
Properly Matching Your Camshaft and Distributor Gear
Matching camshaft and distributor gears is one of the most critical, yet often overlooked step in engine assembly. The proper distributor gear for your camshaft differs by both the material and the kind of lifter for which your camshaft was designed. Using the wrong material can lead to premature gear wear, possible camshaft wear and
EngINtel: Recycled Coolant
There isn’t one of us who has not been affected or knows someone who has been affected by the economic crisis, downturn, recession or whatever catch phrase is being used this week in an effort to try and keep us from focusing on one reality that we all are aware of – the cupboards are
Engine Builder Shop Solutions: July 2009
The Modular Block ‘Main Event’ When performing main bearing housing bore work on an LS1, LS2, Ford 4.6L or other modular blocks the following procedures should be followed. First do all of your cap indexing, with cutting or aftermarket cap installation, then put the final torque on the mains. Next, install both cylinder heads and