Looking For Leakers In Ford’s Duratec 3.0L Engines
If you have ever experienced the joy of doing a plumbing project you learn very quickly about how the properamount of heat in the right place will literally leach the solder intothe joint to seal the copper pipe properly – or not. It becomes obvious where youfailed to do so once you open the main
Rattle or Knocking Noise from Audi Camshaft Adjuster at Cold Start
The following chart lists the production models and engines affected by this conditon. Service The camshaft adjustment is hydraulically actuated and controlled by the engine oil pressure. If the engine has been turned off for a longer time, the oil pressure drops down and the
Valve Timing Basics
Although we can not explain cam design in such a small space, we might be able to clear up some of the most misunderstood terms and make clearer what actually happens as the engine goes through its four-stroke cycle. We will illustrate the relationship between all parts of the engine and try to help you
A Forgotten Decade: Identifying Cadillac Cylinder Heads From The 1980s
Forthe Cadillac 4.1L engine there are only two cylinder heads, one thathas a somewhat oval combustion chamber (see illustrations) that iscommonly referred to as the “non-swirl” and produces a published 8.5:1compression. The second head has a somewhat heart shaped combustionchamber and is referred to as the “swirl” head and produces 9.0:1published compression. When using the
Eliminating The Low Oil Pressure Gremlin
Whether you’re a Production Engine Remanufacturer (PER) or a Custom Engine Builder (CER), this issue has shown up in yourwarranty or complaint area like the nasty gremlin that it is. So let’sgo on a journey and see what you think. "Low Oil Pressure" is the frightening gremlin of which I speak! Here isthe situation: your
Carbon Knock Noise On Acceleration for Ford Vehicles with 4.0L Engines
Some vehicies equipped with the 4.0L OHV engine may exhibit an engine noise which might be perceived by the customer as a piston/connecting rod bearing knock. This carbon knock is heard only under load during the drive cycle. Carbon knock is a customer drive-duty-cycle phenomenon that cannot be repaired with an engine exchange. This may
Turbocharging for Efficiency
From time to time we will publish a question and answer from The Combustion Chamber forum. If you have a question you would like to ask or answer, please visit http://community.enginebuildermag.com/forums. Turbo for efficiency From tnsmachine I am looking for information on turbocharging a 5.7L Chevy for fuel efficiency in a Suburban from someone
Acura Integra Engine Extended Crank Time
PROBABLE CAUSE The fuel pump check valve or the pressure regulator allows the residual fuel pressure to drop. SOLUTION Note: Check the residual fuel pressure before checking for other possible causes. 1. Relieve the fuel pressure as described in the service manual, then connect a fuel pressure gauge at the fuel filler. 2. Start the
New Thread Repair Kit Available For Damaged GM Engine Block Bolt Holes
Affects: 1993 Cadillac Allante 1996-1999 Cadillac Deville 1993-1999 Cadlllac Eldorado, Seville 1994-1999 Cadillac Concours 1995-1999 Oldsmobile Aurora 1999 Marine with 4.0 L or 4.6 L Engine (VINs C, Y, 9 – RPOs L47, LD8, 1-37) A thread repair kit (Kent-Moore J 42385-500) is available to repair damaged engine block bolt holes for the cylinder head
Cleaning Injectors on
Affects all 1990-2006 Toyota and Scion models equipped with Port Electronic Fuel Injection (EFI). 1. If the fuel injector nozzles are visibly blocked or if the injectors do NOT pass the fuel injector volume test, complete the fuel injector power flush using the following instructions: A. Before an injector cleaning is performed, it is recommended
Checking Fuel Pressure
Fuel pressure can be checked by attaching a gauge to the Schrader valvefitting on the fuel injector rail, or by teeing the gauge into the fuelsupply line if the fuel system lacks a test fitting. The operating pressure of the fuel system must be within the rangespecified by the vehicle manufacturer. The numbers will typically
GM Engine Oil Leak at Crankshaft Rear Main Oil Seal
Models: 1982-2005 Cars and Light Duty Trucks (Including Saturn) with 2.8L, 3.1L, 3.4L, 3.5L Engine. Note: This bulletin does not apply to 2004-2005 Saturn VUE models with 3.5L DOHC V6 Engine Correction A new design crankshaft rear main oil seal has been released. This seal incorporates features that improve high mileage durability. Replace the crankshaft