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
The Angle On Valve Seats
Valve seats seem to be a fairly simple engine component but they play a critical role in sealing compression and cooling the valves. When a seat becomes worn, it may leak compression and allow the valve to run hotter than normal. The same thing can happen if the seat is out-of-round or has lost its
Ford Timing Chains and Belts
So if a customer is driving a vehicle that is more than 5 or 6 years old, he may be driving on borrowed time if the timing belt has not been replaced. The risk of belt failure goes up sharply once a belt surpasses its recommended replacement interval, which for most Ford applications (except the
Topline Automotive Buys, Reopens Hylift Facility, Engine Builder, August 2004
A full-line of flat mechanical tappets, lash adjusters and encapsulated hydraulic roller lifters are again being produced by the original Hylift machines and team. The previous Hylift OE lines that were in Zeeland, MI, have now been relocated to the Muskegon plant. “The same people who made ‘The Beautiful Lifter’ are back manufacturing with precision
Guide and Seat Equipment
Cylinder head work has been and should continue to be a profit center for engine builders. Heads almost always require guide and seat work to restore compression and oil control. This includes drilling, reaming and replacing valve guides, removing worn, loose or damaged valve seats, cutting new seat counterbores, and machining valve seats. For performance
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
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
Align Yourself
The crankshaft main bores are the foundation of every engine block. The alignment of the main bores is important because their position establishes the centerline of the crankshaft and how the crank aligns with the cylinders, deck surfaces and camshaft. Misalignment in the main bores can cause binding and premature main bearing wear. Misalignment occurs
Shop Equipment Can Serve Niche Markets
Ever since man first rubbed two sticks together to make a fire and then sharpened the first stick so he could hunt with it, we have been coming up with new ways to use old tools. When it comes to your machine shop equipment, today
Valve Seat Installation Procedures
If a valve seat is damaged, cracked, loose, receded or too badly worn to be recut or reground, it can cause a variety of problems: loss of compression, valve burning, valve failure, valvetrain wear and breakage, even head and valve damage if the seat comes loose. For that reason, replacing valve seats is often necessary
Dodge City’s Finest; Harry’s Machine Works
No history of the American West would be complete without extensive recollections of Dodge City, KS. Formed as a convenient railroad stop to serve the new Atchison, Topeka and Santa Fe railroad, Dodge City offered something for everyone. That is, if your tastes ran to buffalo hunting, gambling or gunfighting. In its early days, Dodge
Eliminate head gasket failures on Cat diesels
Q. To eliminate head gasket failures on Cat diesels, how should the heads be torqued? A. Pressurizing the cooling system with the oil pan removed can differentiate between a water pump leak and a cylinder head gasket leak before removing the head. If a head gasket is the source of the problem this revised cylinder
Engine Crack Detection Technology
It doesn’t matter if you’re rebuilding a high mileage engine and reusing salvaged components or using brand new parts right out of the box – any highly stressed component or casting that has to withstand high loads, temperatures and/or pressures should always be inspected to make sure it is free from cracks or other defects
Coretalk: September 2001
Ford Plans to Revamp Parts Distribution Network Ford Motor Co. is working to restructure and expand its United States parts distribution network to deliver service and repair parts to its dealers faster and more efficiently. Over the next three years, Ford plans to increase the number of parts distribution centers from 10 to 21, creating
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
Engine Builder Letter: Automotive Rebuilder Will Be Changed To Engine Builder
When you look at the cover of your magazine next month, you will notice a new name there. AUTOMOTIVE REBUILDER will be changed to ENGINE BUILDER. Founded in l964, AUTOMOTIVE REBUILDER originally served the entire rebuilding industry including engines, parts and transmissions. And, it was primarily an automotive focused publication. Much has changed during the
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
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
Engine Installation Opportunities
Much has been reported recently regarding theneed to grow the engine rebuilding and remanufacturing markets.We’re all aware of the Automotive Repower Council (ARP) whichwas recently formed to increase customer awareness on the alternativesto buying or leasing a new vehicle. And Automotive Rebuildermagazine has provided a number of features and columns dedicatedto ways to expand the
Machine Shop Market Profile
Interviews conducted with parts and equipmentsuppliers, as well as machine shop owners and custom engine rebuilders,generally point to market demand which has remained flat whenengine production numbers are compared to year earlier figures.Recent survey results of machine shops concerning production year1997 confirm these assumptions. Automotive Rebuilder magazine conducted a surveyof the machine shop membership of