Oil Leak By Crankshaft Seal on Porsche Boxter Engines
Models Affected: 97-’04 Boxter/Boxter S M96.23, M96.24 Engines Examination of engines that were the subject of complaints revealed other oil leaks in addition to those found in the crankshaft sealing ring on the flywheel side. These engine oil leak areas included: • Crankcase bolt threads • Intermediateshaft flange area. Since March 10, 2004, bolts with
New Aftermarket Automotive Belts and Hoses Last Longer
There was a time when rubber belts and hoses were maintenance itemsthat had to be replaced every five or six years, depending on theircondition. The original equipment belts and hoses on today’s late-model vehiclesare mostly made of EPDM (ethylene propylene diene monomer), a syntheticrubber that is far more durable, heat-resistant and wear-resistant thanNeoprene. This means
In Chrysler
The trouble with timing goes on and on. However when it comes to the right timing on engines, especially single and dual overhead camshaft engines, it is absolutely critical to be correct. There are very few OHC engines that are not interference, either, so you are very motivated to making certain that camshaft timing is
Toyota V8 UZ Engine Timing Belt Issues
When I first started researching this article, I called and stopped by several shops that do work on Toyota vehicles. I asked if any of them had any V8 models coming in for timing belts so I could get some pictures of the process. Either a blank stare, or a question like: “What Toyota V8?”
Toyota V8?UZ Engine Timing Belt Issues
I asked if any of them had any V8 models coming in for timing belts so I could get some pictures of the process. Either a blank stare, or a question like: “What Toyota V8?” was the general response. The idea that there was a Toyota V8 needing a timing belt replacement seems to be
Identifying Ford 4.6L Engine Front Covers
The first cover we’ll discuss is used on the 2001-2004 Van, 2002Expedition and 2002-2004 Ford F-150. It is Ford p/n 2L3Z-6019-AA.Before I mention the cover, I must remind you that 2004 was atransitional year for Ford, and the 2004 F-150 is the Heritage bodystyle. You need to pay attention to that or you will end
Designing and Building a World-Record Beating Porsche V8
We would build for the Blown Gas Modified Sports (BGMS) class where the record is currently 231.5 mph. Another record we were after was the Porsche marquee record for the 928 of 205.6 mph. Our math told us that – because we knew our final drive ratio, tire diameters and engine redline; and if our
Engine Builder Shop Solutions: December 2011
Avoiding Hydraulic Timing Chain Tensioner Trouble Be certain to carefully follow the manufacturer’s recommended torque settings when installing hydraulic (oil pressure fed) timing chain tensioners. Over tightening the tensioner can result in distortion of the tensioner piston bore, which in turn can cause the piston to bind up in the bore instead of doing its
Gasket Surface Machining is Critical to Cylinder Head Repair
According to this representative, the relatively short production life of modern engines also shortens the time that an aftermarket gasket company needs to remedy application-specific cylinder head sealing problems. Another issue is that, if the company develops a superior gasket sealing design for specific applications, the engine might disappear from the market before the company’s
2011 LS Engine Parts Buyers Guide
This directory is composed of companies who told us they supply various parts for the LS?engine. You’ll want to check with them for their latest offerings. This isn’t an exhaustive list – only companies who responded to our survey (or our advertisers) were included. For more company contact information, visit our exclusive online resource,
Cam Drives and Timing Components
Cam timing plays a huge role in an engine’s power curve. Advancing cam timing shifts the power curve more toward the lower rpm range, while retarding it moves the power curve higher up the rpm scale. If an engine is being built for a particular application (stock, street/strip, drag race, circle track, you-name-it), how the
Pump Gas Nailhead Build Takes Innovative Engineering Skill
The nailhead has more in common with a pair of four-cylinder engines than a V8. Like a four, the nailhead is a torquey motor, making all its torque at idle and then, as the rpms go up, the torque goes down and the horsepower rises. Engine builder Guy Henson recently did a custom, high-tech build
Rebuilding the Chevy 3.4L/3.5L Engine
(Download the illustrated pdf here) We’re going to take a look at two of these engines, including both versions of the latest 3.4L that was used in the Chevy Equinox (and Pontiac Torrent) and the original 3.5L that was installed in several ’04-’07 Chevy cars and crossovers. And, we’ll give you an overview of what
Timing Chain Service on Ford 3.0L Duratec Engines
You will have to use a dial indicator tofind the TDC position of the number one cylinder on Ford’s 3.0L Duratec to make sure the crankand camshafts are all properly aligned. Ford says that when the crankshaft keyway is positioned at roughlythe 11 o’clock position, the number one cylinder should be at TDC. Before you
Engine Builder Shop Solutions: April 2011
Keeping Chevy 4-Bolt Mains From ‘Walking’ All four-bolt small block Chevy main caps “walk” when used with either studs or bolts. The factory cap or a splayed cap relies on the register to locate itself because bolts and studs don’t fit well enough to keep the cap from walking. What I have decided to do
Rattle Noise From Primary Chain Drive on Ford 4.0L SOHC Engine
The 4.0L SOHC engine is one of Ford’s Cologne V6 engines, a line of 60º, cast iron block, V6 engines produced continuously by Ford in Cologne, Germany since 1968. It uses a jackshaft in place of a camshaft to drive a timing chain to each cylinder head. The patented "Offset Y-drive" uses three timing chains,
Rebuilding the Chevy 3.4L/3.5L Engine
(Download the illustrated pdf here) We’re going to take a look at two of these engines, including both versions of the latest 3.4L that was used in the Chevy Equinox (and Pontiac Torrent) and the original 3.5L that was installed in several ’04-’07 Chevy cars and crossovers. And, we’ll give you an overview of what
2001 2.4L Hyundai Engine Runs Rough
This condition may be caused by the exhaust camshaft coming out of time. A new timing belt cover (P/N 21360-38214-D) that incorporates a timing belt guide has been installed on vehicles produced since Jan. 30, 2001. Vehicles/Engines that experience the condition described above should be updated with the new timing belt cover. Inspection: 1. Inspect
Timing Chains, Sprockets and Gears
Look back at the events in your life an examine how timing has played a part in the outcome. When you showed up at party and met the girl who would eventually become your wife? When you stayed late at work and missed the 18-car pile up on the interstate? Even without realizing it, your
GM 2.2L Ecotec Timing Chain Service
Prior edition service manuals refer to the timing chain index links being colored “silver” and “copper.” With the implementation of the newer chain and oiler assembly, the index link colors have changed. In order to avoid confusion, the service procedure has been modified to refer to the index links as two common colored and one