Little Engines, Big Money
For the rebuilding facility familiar with typical automotive or heavy-duty engines, the small displacement, four-cycle, air-cooled engine may seem insignificant. After all, these one-cylinder motors, which may produce just 5 hp, are found in lawn mowers, rototillers and kiddy go karts, for cryin’ out loud! Although the small four-cycle engines from Briggs & Stratton, Tecumseh,
Hot Heads, Head Work On Harley Davidson Engines Can Yield Good Profits
Porting these heads and increasing airflow and valve sizes does the trick For decades, Harley Davidson (HD) owners have sought increased power and performance for their machines. We have found over the years that porting the cylinder head and increasing the valve sizes and airflow not only adds horsepower but also increases torque and driveability.
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
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
Inside Nitrous Oxide Engines
The recreational use of nitrous oxide as a horsepower-enhancing compound first came into prominence in the 1960s. But its first application to internal combustion engines was for far more deadly purposes. During World War II, the Germans reportedly were the first to install nitrous oxide systems on their fighter planes. The Allies soon followed and
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
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,
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
Steering A Course Through The Rack Wars: Today’s Market For Remanufactured Rack-And-Pinion
Is today’s market for remanufactured rack-and-pinionsteering units meandering through the doldrums of a mature aftermarket,or is it heading in a new direction that may soon create new opportunitiesfor rebuilders? Some say the worst is behind them. They sayrack prices have bottomed out, competition has leveled off, anda growing number of retailers have come to realize
Small Engine Performance
Most businesses have the same problems and each must look for ways to remain competitive by reducing costs and exploring new markets for existing products or services. And so it is in engine building. There is always someone that is able to provide more features per dollar than you (or at least make someone believe
Cylinder Bore Honing: Main Objective When Refinishing The Cylinders
When an engine is rebuilt, the cylinders usuallyneed attention. Wear tends to create taper in the upper part ofthe cylinder that can reduce ring sealing and increase blowbyand oil consumption if not removed. The cylinder may also be outof round, scored or have other damage that requires correctingbefore a new set of rings will seal
Mopar Engine Platforms – 318, 360
Chrysler Corp. hasn’t built a rear wheel drive, V8-powered car (with the exception of the Viper) since the turn of the decade. And the cars that harbored V8s beneath their hoods during the late 1980s were about as appealing to performance enthusiasts as the front-wheel driven vehicles that replaced them. In spite of that fact,
Understanding Alternator Current Output
The amount of electronic and electrical equipment in today’s cars has increased exponentially over the past decade and we can look forward to even more in the near future. The demands for electrical power are increasing and, consequently, greater output currents are needed from the alternator. In this article, we will examine what determines the
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
Why Parts Get Coated
I never would have believed you could get those kind of resultsfrom a glorified paint job. With those words, another skeptic(in this case, a NASCAR Winston Cup engine builder) had come toaccept the value of special coatings applied to engine components. At the time, such skepticism was not totally unwarranted. Likeany emerging technology, the coating
Valvetrains: Better Materials & Design
Pushrods would seem to be an endangered species these days, atleast as far as most new engine designs are concerned. The onlybrand new engines built in recent years with a pushrod valvetrainhave been Chrysler’s 8.0L V10 for the Viper and Dodge Ram, andGeneral Motors new "LS1" 5.7L small block V8. All therest have either been
Niche Market Opportunities
In today’s highly competitive market, it makes sense to constantlybe on the lookout for new opportunities. Information on the marketsdescribed in this article may provide some new business prospectsfor those shops not already involved with them. However, rebuildersshould constantly be prospecting for other niche markets for theirexisting products or services. There are potentially many products
Rebuilding The Chrysler Engine Family
Much of the information used to write thisarticle was provided by Bruce Chapman, president, and the employeesof Ontario Reman, Etobicoke, Ontario, Canada. Ontario Reman isan authorized Chrysler engine rebuilder selling remanufacturedengines and small parts to Canadian Chrysler dealers. We thankthem! Chrysler introduced a whole new family of 60degree V6 engines beginning with the 3.3L OHV
Blasting Technology: This Cost-Effective Cleaning Procedure Has Improved
When it comes to parts cleaning by blasting,the idea of propelling abrasives at parts to clean them of rust,carbon, paint or other difficult contaminants is a simple one.But the technology involved with this cost-effective cleaningprocedure has improved, and rebuilders can take advantage of manyoptions to eliminate out-dated, labor-intensive cleaning practicesin the shop. Scott Christiansen of