Researching the Rebuilding Market for Multi-Valve Cylinder Heads
Cylinder head work has provided a good income for many of our readers over the years. All engines eventually need a valve job and guide work if they accumulate enough miles. Head work may also be needed if an engine overheats and blows a head gasket, if the head develops a crack, or an OHC
OBD II Shop
Having come from the era of the muscle car, it is extremely interesting to me to get out and look at the new vehicles, feel the performance and see the technology that makes the tailpipe emissions half of what they were in 1996. This technology is made possible by faster power train control modules that
Building Drag Racing Cylinder Heads
One thing every drag racer wants is to go faster – even bracket racers. There are lots of ways to shave tenths of seconds and even whole seconds off an elapsed time. It all comes down to how much money the racer is willing to spend in his quest for speed. One way to go
Cylinder Bore Refinishing with Honing Tools
By ring friendly, we mean a finish that provides good support for the rings, retains oil and does not require a lengthy break-in period. For most engines today, a ring-friendly finish means a plateau finish. A plateau bore finish is what all types of rings eventually produce when they are fully seated, so the closer
Head gasket selection for Toro Groundmaster and Roadmaster units with 1982-’99 Peugeot XUD9 diesel engines
Engine Builders: The AERA Technical Committee offers the following information for head gasket selection for Toro Groundmaster and Roadmaster units with 1982-’99 Peugeot XUD9 diesel engines. This information should be considered any time the head gasket is replaced. Four different head gasket thickness options are currently available and provide a variety of gasket thickness options
Pera’s Core Corner
In the quest to find the latest and greatest information about different casting identification, oddities and interchangeability to assist those within the engine remanufacturing or rebuilding industry, it is easy to lose sight of valuable information from the past. No, I am not talking about the ’50s and ’60s, although that may be an idea,
Lord(s) Of The (Piston) Rings
“He who breaks a thing to find out what it is, has left the path of wisdom.” – Gandalf, Fellowship of the Rings. This is certainly not the case with piston ring technology, although Gandalf from the Lord of The Rings never directed his comments towards engine builders or piston ring manufacturers. Piston ring manufacturers
The New Sport Compact Market
The most popular nameplates are imports such as Honda, Acura and Mitsubishi, but coming on fast are Nissan, Toyota, Mazda, Subaru and Volkswagen – plus domestic models such as Ford Focus, Dodge Neon and even Chevy Cavalier. Nobody is abandoning the small block Chevy or any of the other V8s that have traditionally been the
High Performance Piston Options
Ask the kid on the street what performance is and he’ll raise the hood of his Honda. Ask the Funny Car drag racer about performance and he’ll take you to the starting line to breathe the nitromethane. Ask the mother on vacation and she’ll tell you about driving to California from Indiana pulling a car
Detonation in a few Ford 4.6L engines. Is this an octane issue?
We have had detonation in a few Ford 4.6L engines. Is this an octane issue? The AERA Technical Committee offers the following information on replacement pistons for 1991-2002 Ford 4.6L VIN W, X & 6 engines. This family of Ford engines is very sensitive to an increase in compression ratio whether the increase in compression
Valve Guide Reconditioning
A valve loses about 15 to 30 percent of its heat through the stem. On the exhaust side where there is no cooling effect from the incoming air/fuel mixture, the guides are critical, because cooling through the stem is especially important for valve longevity. Worn intake guides or ones with too much clearance can also
Rebuilding The Ford 2.0L
The old 1.9L was modified and upgraded in the process of making it into the 2.0L. The new engine was bored and stroked, it had siamesed cylinders that made the block stronger and quieter, the crank had four more counterweights that made it run smoother, and it had domed pistons for more compression. The
Flow Boxes
Over the years, I have had occasion to port cylinder heads when I had no prior experience with that particular casting. The results have not always been as good as I would have liked them to be, but with only one head or one pair of heads available to work with, the development opportunities were
The Smooth Science of Cylinder Honing
The basics of honing cylinder blocks hasn’t changed much in recent years, but what has changed are the type of abrasives being used by many engine builders. Silicon carbide and aluminum oxide honing stones of various grits have long been used in power honing machines and portable hones to finish cylinder bores. These types
Compromising the Seal
The head gasket is one of the most critical gaskets in an engine because it has to seal all of the combustion chambers as well as the coolant and oil passages between the head and block. The gasket has to provide a leak-free seal from the moment it is first installed, and maintain that seal
Where Should The Cam Bearing Oil Hole Be Located On A 3400 Series Cat Diesel?
A: The AERA Technical Committee offers the following information regarding cam bearing oil hole location for 3400 series Caterpillar diesel engines and installation of all cam bearings for these engines. This bulletin should be used, and service manuals published before 1985 should not be used. The correct location for the oil hole in the camshaft bearing
Ford Y-Block Engine Tricks
The Y-Block Ford is the successor to the flathead and Henry’s first OHV V-8 engine. They were built from 1954-’64 and installed in Fords, Mercurys, Edsels and Ford trucks. They came as 239, 254, 272, 292, and 312s. All along there were just enough cracked heads to become a nuisance, and efforts were made to
Rebuilding the Ford 4.6L SOHC Engine
The 4.6L was lower, shorter and lighter than the 302, but the base engine made more power than the 302, got better fuel economy and passed all the emission tests without a thermactor pump. Ford called it its “modular” engine because it was part of a whole new family of engines that were intended to
Tips for completing the job when resurfacing 16.3L Mack diesel cylinder heads
Q Any tips for completing the job when resurfacing 16.3L Mack diesel cylinder heads? A The AERA Technical Committee recommends that you pay attention to the fire ring grooves on 1990-2000 Mack E9 diesel engine cylinder heads whenever you resurface the head. This cylinder head incorporates a circular groove around each combustion chamber and a
Choosing Performance Camshafts
[email protected] Americans are very enthusiastic about their automobiles. Therefore, when they purchase, rebuild or even imagine their dream cars, a tremendous effort is put forth to make sure it is exactly what they want. Because the engine is arguably the most significant element in the performance of the car, it is very important that the