Engine Boring and Honing Equipment
Cylinder boring and honing is the heart of most engine builders’ operations. The equipment you use will have a lasting effect on the quality of the product your shop sends out the door on a day-by-day basis. While equipment varies from manufacturer to manufacturer, so too do your needs for a specific type of machine.
Engine Bearings: Stock & Performance
The importance of the engine’s bearings can’t be over-emphasized. The bearings support the crankshaft and connecting rods, and in pushrod engines also the camshaft. The bearings provide a surface for the friction-reducing oil film that allows the parts to spin without rubbing metal against metal. It’s a tough job because of the high loads created
Making Horsepower and Horse Sense From Your Dyno
A dyno can give an engine builder an enormous wealth of information and even separate the truth from lies. It’s one thing for a builder to have an idea of what the engine he or she is building is capable of and quite another to know exactly what’s been created. That’s because a dyno, more
Surfacing Equipment Options
On older cast iron engines with conventional soft-faced head gaskets, as long as the surface finish on the cylinder head and block deck is roughly 60 to 100 microinches Ra (roughness average), the head gasket should cold seal and remain leak-free for the life of the engine. But on late model bimetal (aluminum head/cast iron
Blast Cleaning Technology
The future, they promised us, would be full of amazing things. We would be commuting in flying cars, we would be using robots to do most of our manual chores and space travel would be fairly routine. First, the future was 1984 – then it was 2001. Now, in 2005 we do have highly exotic
Piston Ring Technology: Stock and Performance
Piston rings have one of the toughest jobs inside an engine. They’re slammed up and down between the ring lands thousands of times a minute; they’re subjected to searing temperatures and extreme pressures; and they’re constantly scraping back and forth against the cylinder walls. In spite of all of this, the rings are expected to
New Technology:Advances in Engine Building Equipment
How has racing changed your engine building business? No, it’s not a hypothetical, industry-generic question; in this case, it’s directed at every reader of this magazine. A strange question? It may seem to be. If you race – or build motors for racers – it’s probably an easy one to answer. But if you stay
Putting the ‘Power’ in Powersports
Performing rebuilds and other machine services on ATVs, personal watercraft (PWC) and snowmobile engines may provide your shop with a little added boost during a down period without having to retool your entire shop. However, to make the most of the opportunity, you should know what type of market you can serve best – ATV,
Surfacing Equipment For Today’s Engines
The surfacing needs of today’s engines are as complex as the engines themselves. Multi-valve aluminum cylinder heads on cast iron blocks are a tough combination to seal because of the difference in expansion rates between the two metals. If the surface finishes on the head and block are too rough, lateral shearing forces which occur
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
What’s Wrong With Our Industry
What’s wrong with the engine building industry today? It’s a simple question that has no simple answer. Like many other – if not every – industry facing difficult times, the factors impacting this market are varied, complex and frustratingly hard to pin down. Are the woes of the industry the fault of customers or suppliers?
What is the cylinder head installation procedure for the new GM 6.6L diesel engine?
What is the cylinder head installation procedure for the new GM 6.6L diesel engine? According to the AERA technical committee, there is a revised cylinder head installation procedure for 2001-2003 GM 6.6L VIN 1 diesel engines. These engines are referred to as Duramax diesels and are a result of a joint venture between GM and
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
Repair Of Worn Cam Bearing Housing Bores For Detroit Diesel 11.1l And 12.7l Diesel 60 Series Engines
Engine Builders: The AERA Technical Committee offers the following information regarding the possible repair of worn cam bearing housing bores for Detroit Diesel 11.1L and 12.7L diesel 60 Series Engines. These engines use an overhead camshaft design with seven individual location precision bearing inserts. Over time, the bearing bores may become worn oversize or out-of-round,
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
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
Cleaning – Do You Know Where Your Dollars Are?
Cleaning parts in the machine shop doesn’tcome cheaply. According to Automotive Rebuilder’s Machine ShopMarket Profile about 15.2% of engine machining and rebuildingproduction work involves disassembly and cleaning. According torebuilders that we surveyed, disassembly and cleaning accountedfor the highest percentage of total rebuilding production timein the shop. So there can be significant benefits to reducingcleaning costs
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
The Nitty Gritty On Small Parts Cleaning: Many Ways To Clean Small Engine Parts
Tom Nichols, CEO and president of AutomotiveMachine & Supply, Inc., Fort Worth, TX, said availabilityis most often the key to why his shop cleans and reuses smallparts. Nichols said each day his shop cleans and reuses many smallparts, including valve locks, shims, springs, retainers, rockerarm assemblies, cam bore caps, nuts, bolts, etc. "Becausewe only