Engine Cylinder Bore Surface Finishes
What’s the best type of cylinder bore finish for today’s engines? Most would say it’s a finish that allows the rings to seat quickly and completely so the engine doesn’t use oil. For many applications, that may mean a plateau finish. The surface finish must also meet the piston ring manufacturer’s specifications and have the
Rebuilding the GM / Chevy 2.2L Engine
Unfortunately, this four cylinder, pushrod motor didn’t have nearly enough horsepower, so Buick, Oldsmobile and Pontiac all opted for the 1.8L SOHC Opel engine from Brazil for most of their “J” cars, and Chevy promptly made its new engine into a 2.0L/121 cid that delivered more power in 1983. The 2.0L was upgraded in 1987
Toyota 3SGTE Engine
First of all, one needs to realize that Toyota, like GM, Ford, etc., has engine “families”. However, rather than calling them names such as “big block” or “small block,” Toyota assigns them a letter code. The engine family code is the first letter (not the first numeral). The codes are as follows: A-series: 1.5L, 1.6L
Rebuilding the New Chevy 262
This enabled GM to shorten the development process dramatically because it was able to adapt a proven design. But it also allowed it to share a lot of the existing tooling from the V8 production lines so the engines could be on the road sooner. The original 200 V6 that came out in 1978 was
Rebuilding the Chevrolet LT1 Engine
Compared to the 1991 Chevy 350 L98 with TPI, the LT1 made 20 percent more horsepower, got better fuel mileage, and had a much broader torque band with 90 percent of its peak torque available from just over 1,000 rpm all the way up to nearly 6,000 rpm. GM Powertrain accomplished all of this by
Chrysler Shop Solutions
Chrysler/ Mitsubishi 2.6L/3.0L Some of the late 2.6L engines and all of the 3.0L Mitsubishi engines have a very small "auto-lash-adjuster" installed in the tip of the rocker. All too often, air gets trapped in the lower chamber of the lifter and prevents oil from filling the lifter. When this happens, the lifter holds the
Cleaning Aluminum
"Ten years ago, when there wasn’t that much aluminum, people were scared," said Mike Wigert, sales manager of spraywasher manufacturer LS Industries. "They didn’t know how to regulate their ovens, they didn’t know which chemicals to use, and they were tarnishing their aluminum parts, and probably ended up hand cleaning a lot of them," he
Rebuilding the Chevrolet LT1 Engine
Although it shared many common dimensions, looked much the same and even had a few common parts, it was totally redesigned to provide more power with lower emissions and better fuel economy. Compared to the 1991 Chevy 350 L98 with TPI, the LT1 made 20% more horsepower, got better fuel mileage, and had a
The Aqueous Alternative: Cleaning Is The Cornerstone Of Every Rebuilding Operation
Cleaning is the cornerstone of every rebuilding operation, be it a small one or two man shop or a large scale production facility. Dirt, oil, grease, carbon and other contaminants must all be removed from components that are being processed so they can be inspected, machined and restored to like-new condition. Additional cleaning may also
Rebuilding Toyota 3.0L V6 Engine
In 1988 Toyota introduced its first V6. Most of the information that follows applies to the 3.0L version used in Toyota’s truck applications. The 3.4L is still fairly new to the aftermarket at this point. 3VZ-E – 3.0L SOHC V6 – ’88-’95 The 3VZ-E was also introduced for the 1988 model year on Toyota 4×4
Rebuilding The GM Quad 4
The Quad 4 had four valves per cylinder, tuned intake and exhaust manifolds, no distributor, no plug wires, lightweight rods and pistons to reduce shaking forces, and a crank with eight counterweights that was designed to reduce noise, vibration and harshness (NVH) and bearing wear. It didn’t have an A.I.R. pump or an EGR system,
Bio-Remediation-Managing Munching Microbes
The practice of using microbes to break down and clean up hazardous and unwanted chemicals has been used for many years. However, most people were first introduced to the practice of using oil digesting microorganisms in 1989, when television news broadcasts showed microbes being used in the cleanup of the Exxon Valdez spill, which deposited
Pistons & Rings: Changes That Are Designed To Reduce Emissions And Extend Durability
With each new generation of engines come changes that are designed to reduce emissions and extend durability. Key among these have been changes in piston and ring materials. Most vehicle manufacturers today are building passenger car engines that, with proper maintenance (regular oil changes), are capable of going well over 100,000 miles
Toyota 20R Engine
Toyota has built numerous four cylinder engine families over the years, but one that has been in use for quite a long time is the R-series. The R-series has been the main motor used in almost all Toyota pick-up trucks, as well as the rear-wheel-drive (RWD) Celica and Coronas. The 20R was introduced in 1975
The Fit Is In The Finish
Clean, flat and smooth. These three words describe the surface in an engine, not just the head and block. But how clean, how flat and how smooth do the surfaces really have to be to get a good, long lasting seal? It depends on the application. Clean means no dirt, oil, grease or residual gasket
LPG Conversions: Renewed Interest In The Use Of LPG (Liquefied Petroleum Gas) And LNG (Liquefied Natural Gas)
The recent move to clean up inner city exhaustemissions has resulted in renewed interest in the use of LPG (LiquefiedPetroleum Gas) and LNG (Liquefied Natural gas) as motor fuels.These fuels are almost pure propane with a little butane present. Tax incentives are being offered to encouragefleet operators to convert to gaseous fuels and more vehiclesare
Cleaning Equipment Maintenance
The saying, "An ounce of preventionis worth a pound of cure," definitely holds true when itcomes to the operation of cleaning equipment in rebuilding shops. According to David Zehren, product manager,stationary equipment for Georg Fischer Disa Goff, Inc., Seminole,OK, routine maintenance of cleaning equipment impacts all rebuilders,no matter how large or small. "The issue of
Crankshaft Polishing: Make Sure The Journals On The Crankshaft Are Properly Polished
Today’s high output, close tolerance enginesare more dependent than ever on quality remanufacturing procedures,durable parts and precise machining. One of the best ways to assurelong bearing life in today’s engines is to make sure the journalson the crankshaft are properly polished. The oil film between the journals on the crankshaftand the loaded portion of the
Rebuilding the Buick 3300
The Buick 3300 was introduced in 1989 as areplacement for the 3.0L that had been around since 1982. It hadthe updated block with on-center bores, just like the revisedversion of the 3800 that came out the year before, along withseveral other changes and improvements. This engine was installed in many of the "A"bodied cars including
1998 Market Update – Electrical
The information provided in this article is excerpted from a presentationmade by Doug Barron, Manager of Freedom Battery Design & Application,Delphi Energy & Engine Management Systems. The presentationwas made at last year’s Independent Battery Manufacturers Association(IBMA) Convention in Chicago, IL. Barron’s comments pertain to the future requirements of automotivebatteries. However, they also address the increasing