Rebuilding Liberty: Timing Belt Service on Jeep Liberty Engines
The 2.4 L I4 PowerTech is a Neon engine variant based on the Chrysler engine that was designed originally for the Dodge and Plymouth Neon compact car. The naturally aspirated 2.4L 4-cylinder PowerTech engine provided 150 hp (110 kW) and 165 lb.-ft. (224 Nm). In 2002, the Jeep Liberty was the first Jeep to use the two
Gems From ’49 Bell Catalog
Long before the Internet, there was a man with a vision – and a catalog When Roy Richter wrote, “Here it is”on the inside cover of his 1949 Bell Auto Parts Catalog, he probably didn’t realize what he started. He said it was, “the most comprehensive and up-to-date catalog of racing equipment.” Bell Auto Parts
Tech Talk: Why VVT Engines Are Becoming a Reality for Most Vehicles
Variable valve timing can dramatically increase low- and high-speed engine torque, increase fuel economy and reduce exhaust emissions. When the topic of variable valve timing (VVT) comes up, few realize that the concept of increasing low- and high-speed engine torque by automatically advancing and retarding valve timing isn’t a recent development. For example, I recently discovered an
Moly-Based Coating Conflicts
Using a Molybdenum Disulfide-based coating, such as a lubricating coating that is often used on camshafts, is an excellent way to increase load capacity and improve durability. Molybdenum Disulfide is also used in CV and universal joints as well as on bullets for easier passage through the rifle barrel, allowing the barrel to retain ballistic
Engine Builder Shop Solutions: July 2013
How to See Through Pistons for Clearance With the advent of longer stroke crankshafts, one inch plus lift camshafts, raised camshaft locations, lifter angles, bore spacing, etc., exact camshaft lobe and connecting rod clearance may not be able to be determined from looking up from the crankcase area of the block. To see through the
One Minute Might Save You Thirty!
The call, one of hundreds made every day, goes something like this: “Hello. This is Billy-Joe-Bob, can I help you?” “Yeah Billy, this is Hank with Smith Machine. I’m working on an F-150 with a 4.6 and I need some parts.” “OK, Hank. I have several Smith Machines, do you know your account number?” “No.”
Keeping Your Balance With 3.7L?Chryslers
Even though flywheel and clutch assemblies are balanced individually within allowable limits, the mating of each part with the crankshaft axis is essential so that they “run true.” Ideally, the balancing of both the crankshaft and flywheel assembly as one unit would be the way to go – since that’s not likely, holding the closest
Motor Oil Fact or Fiction
1. Synthetic motor oil is too slippery. It causes roller bearings to slide instead of roll, and that causes the bearings to fail. Fact or Fiction? – Fiction If you have ever flown on a jet airplane, you have enough experience to debunk this myth. All jet turbine engines utilize rolling-element bearings, and every jet
Parts Making With Your CNC
Computer Numeric Controlled (CNC) machining allows engine builders to achieve almost unbelievable levels of accuracy and consistency. The programmability of a digital computer not only automates the operation of the equipment but also provides a level of repeatability that can’t be matched by manual equipment. That’s why CNC has been the backbone of virtually all
How a Legend Got His Start
Last March, when Ed “Isky” Iskenderian picked up the Robert E. Petersen Lifetime Achievement Award at the annual Hot Rod & Restoration Show in Indianapolis, he talked about the automobile engine business in the early years. The Iskenderians were Armenians who fled Turkey and came to America around 1910, settling in Northern California’s wine country.
‘Heads Up’ On Today’s Cylinder Heads & Bolts
Some say the air cleaner of an engine is like the front door of a house. That is, it’s what you see first and foremost. And the home owner can use that door to make a statement about the house without anyone seeing what’s inside. Much like what an air cleaner says about an engine
Valvetrain
Selecting the right components to make a rock-solid valvetrain is key to assembling an engine that will last – and win. The pushrods, rockers and valve springs must be able to handle all of the stresses of the camshaft rotating with high spring pressures and with huge lift. Weakness in any part of the system
Going Green Not Just for Irish
Did you know that as engine builders, we were green long before green became the IN thing? We were green even before Kermit said it wasn’t easy. How are we green, you ask? We are green because we rebuild, which means we recycle. Green is defined as: • Relating to or being an environmentalist
Rebuilding Chrysler’s ‘Revived’ Engine Family
Casting numbers, VIN codes, components and processes to rebuild/remanufacture these engines are compiled for Chrysler’s newly revised engine family including 4 cylinders, V6s and V8s Chrysler made some major changes in their engine line-up starting in ’07. They replaced their four cylinder engines in everything but the PT Cruiser in ’07, updated the 4.7L V8
The Raptor Takes Flight
In an age when kids would rather hot rod their computers than their cars, it’s kind of amazing that old fashioned hot rodding still exists – even thrives in today’s society. While computers certainly have their place, the younger generation is still looking for entertainment and thrills – whether captured in HD?or in real life.
Revised Camshaft Seals for Acura B18A Engine
To repair or prevent oil leaks around camshaft, use revised camshaft oil seals (p/n 91203-PR4-004). 1) Remove the timing belt and the camshaft pulleys. Note:There is a small possibility that the timing belt may have beencontaminated with oil if this is a warranty repair. Inspect the beltand replace it if it has been contaminated. See
Top Reasons and Causes for Camshaft Failure
Of all the damaged cams that Crane Cams has checked over the years, it says more than 99.99 percent have been manufactured correctly. Some people have the misconception that it is common for a cast iron flat tappet cam to occasionally have a soft lobe. Crane says they have yet to see a cast iron
VW 16V Cylinder Head Ticking Noise at 2,000 RPM
This bulletin refers to all MY Volkswagen 16-valve engines. As of 11/88, starting with VIN 067 722 a manufacturing tolerancechange has been made to the camshaft sprockets. If a customer complainsbecause of persistent noise, replace both camshafts. Intake camshaft: 027 109 021 AJ Exhaust camshaft: 027 109 022 F Some or all of this information
Variable Valve Timing Systems
By the early 1990s, almost all import automotive manufacturers had a successful variable valve timing (VVT) system in production. These systems offered higher performance from smaller displacement engines at higher rpm. As these vehicles exceeded their new car warranties, technicians learned the ins and outs of these systems and how regular oil changes could increase
Automotive-Powered Inboard Hydroplanes
They’re fast, have power aplenty, can turn on a dime, and throw a huge column of water behind them. They’re called Inboard Hydroplanes and are one of the most exciting motorsports shows on water with their automotive powerplants. The Inboard Hydroplane The looks of these boats spell speed with fighter aircraft aerodynamics on both the