Back to Basics: Preventing Piston Problems
Burned pistons. Scuffed pistons. Cracked pistons. These are problems no customer wants to experience in an engine you’ve built. Warranty claims can kill your business, so here are some tips on how to prevent these and other common piston problems. First and foremost, if you’re custom building an engine that has already suffered some kind
First Issue Of Engine Builder
Welcome to the first issue of Engine Builder magazine. We hope you enjoy the new look as well as our emphasis on providing a closer view of all things engine related. In this issue we cover everything from emerging technology in valvetrain designs to the impact of the transformation of salvage yards on engine builders.
Diagnosing Oil Pressure Problems
Every engine requires a certain amount of oil flow to keep the bearings, camshaft, valvetrain and other moving parts lubricated. Oil forms a barrier that prevents metal-to-metal contact and reduces friction and wear within the engine. In the bearings, it forms a wedge that actually lifts and supports the crankshaft and camshaft as they rotate.
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
Gasket Technology: The Science of Sealing
In spite of the fact that castings have gotten thinner, valvetrain components have gotten smaller and engines are more highly stressed than ever before. Today
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
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
“Heading” In The Right Direction: Heads Are A Hot Commodity These Days
Heads are a hot commodity these days, but itdepends on the application. Some heads like those for Chevy 350and Chrysler 2.2L/2.5L engines are always in demand, but pricesare low because of the glut of cores that are available for theseengines. Even so, anybody who’s selling heads these days has tohave them. The hot heads are
Updating The Asian Import Engine Market: The Learning Curve For Part Identification
"The learning curve for part identificationis awesome" says Bob Gibson as he describes the difficultiesof imported engine core identification. As vice president forsales and marketing at Engine Masters, Inc., a Dallas, TX, productionengine rebuilder, Gibson knows that the demand for import enginerebuilding is growing, and that he’ll do what it takes to be apart of
Performance Marine Engines – Meeting Customer Expectations
Life is a series of compromises. Human relations almost alwaysinvolves compromises of some sort. You want Chinese for dinner,she wants Italian; something has to give. Even if you go yourseparate ways, it’s a compromise and a decision to not dine together. Believe it or not, it’s the same with machinery. Any exercisein design is a
Ensuring Bearing Life: Crankshaft Bearings Are Always Replaced When Rebuilding An Engine
Crankshaft bearings are always replaced when rebuilding an engine because they’re a wear component. Heat, pressure, chemical attack, abrasion and loss of lubrication can all contribute to deterioration of the bearings. Consequently, when an engine is rebuilt new bearings are always installed. “Reading” the old bearings can reveal a great deal about conditions that may
Rebuilt Market Reviews – Engines Market
Total engines remanufactured by all production engine remanufacturers (PERs) in 1995 increased a modest 3.5%, growing to 1.318 million units last year compared to 1.273 million units produced in 1994. Production totals are based on a U.S. and Canadian universe of 120 PERs that produced an average of 10,609 remanufactured engines annually in 1995. Survey
Valve Guide Repair Options
One thing you can almost always count on when rebuilding a cylinder head is worn valve guides. The guides experience a lot of wear because of the constant friction between the guide and stem. To make matters worse, positive valve seals on late model engines prevent the guides from receiving much lubrication. Side forces on
Making Power From Big Block Fords
As noted last month, the first part of a big block Ford power program is to select the appropriate components and machine them properly. Part two entails coordinating the camshaft and valvetrain with an engine’s intended use, and then bolting everything together using proven high performance techniques. According to high performance Ford specialist Norm Wizner,