The leading manufacturer and online retailer of high performance, specialty tools for engine builders, racers, automotive enthusiasts and machinists. Engine Rebuilding Tools Melbourne. Precision Measuring Tools. At Starrett, we understand precision. For generations, the precision that we build into our products has allowed our customers to ensure. Must Have Shop Tools & Measuring Equipment. Keeping tools and measuring equipment in cabinets and storage units can help protect your precision rebuilding tools from damage. Photo courtesy Moduline Cabinets. You can’t do quality work in an automotive machine shop if you don’t have the right tools and measuring equipment. And, it also is a useful list for shop owners looking to upgrade their tool needs for the upcoming racing season, or to take on additional niche projects. Let’s start with basic engine disassembly tools. For starters, you need a good selection of SAE and Metric hand tools including open end and box end wrenches as well as standard depth and deep well sockets. Twelve- point sockets are more maneuverable and faster in tight quarters, but six- point sockets are usually stronger and less apt to round off stubborn fasteners. Engine rebuilding automotive tools at discount prices. Complete stock consisting of major brands such as Lisle, KD, OTC, and many others. Genuine GM Performance Parts Engine Building Tools. Dress-Up Kits: HEI Distributors: Valve Covers: Air Cleaners: Air Cleaner Center Nuts. Tool Guide: The 12 Tools Every Engine Builder Should. Every engine builder should own a dial. Use the correct measuring tool for what measurement. The tools listed here can make engine building easier and can help shave off some. Engine Builder Magazine. For faster disassembly, you also need a set of impact sockets (SAE and Metric) and a pneumatic, corded or even cordless impact driver (3/8 and/or 1/2- inch drive). Some of the newest professional grade cordless impact drivers pack as much punch if not more than many pneumatic and corded impact drivers, and with state- of- the- art lithium ion battery packs they can run a long time on a single charge. The cordless tools are gaining in popularity compared to traditional pneumatic and corded electric tools because there’s no hose or cord to get in the way or trip over, and many are lighter weight than their traditional counterparts (which reduces fatigue). Specialty tools may also be needed for removing pulleys and harmonic balancers (various types of gear pullers), for extracting camshafts from overhead cam cylinder heads (OHC valve spring compressors and head fixtures), for removing or changing valve springs (a power or manual valve spring compressor), for driving valve guides in and out of cylinder heads and for replacing valve seats. Although engines can be torn apart almost anywhere, it’s faster and easier to have the engine mounted on an engine stand or portable dolly. To lift the engine onto the stand or dolly, you’ll need an engine hoist or crane to save your back. A camshaft stand and analyzer software can verify and document cam specs before the cam goes into an engine. As the engine is coming apart, it’s a good idea to have a basket where all the fasteners can be stored for later cleaning and inspection. Fasteners that are reusable should be cleaned up with a thread chaser and wire brush. A tap and die set can also be used to clean and/or repair the threads in the engine too. A stud removal tool is usually necessary to remove studs, and for broken fasteners you’ll need some drill bits and extractor bits to back out what’s left of the fastener. A thread repair kit with inserts may also be needed to repair damaged threads in heads, blocks and manifolds. When old gaskets don’t come off cleanly, a sharp gasket scraper comes in handy and is faster than aerosol chemical gasket remover (although either can be used with equal success). A grinder/polisher with an abrasive disk can also be used to whiz off old gasket residue (if used carefully so the surface isn’t damaged). For removing and installing wrist pins, you’ll need a hydraulic press and various drivers, which also come in handy for U- joint work if you repair drive shafts or replace wheel bearings. Inspection And Measuring. Once you’ve disassembled the engine into its individual components, everything needs to be cleaned, inspected and measured to determine wear and whether or not certain parts needs to be reconditioned or replaced. Measuring is what separates the men from the boys. Real men measure everything – at least twice to double- check their work, and maybe even a third time just to make sure. Late- model engines and performance engines allow almost no margin for error. If you want to do it right the first time, you measure, measure, measure. You can’t determine how much a crankshaft journal is worn or tapered or misshapen unless you measure it with a micrometer or calipers. Digital micrometers and calipers have become “must have” tools because they are faster and easier to read, and reduce the risk of making mistakes. If you don’t measure the size of a hole accurately, you can’t determine if it is round or the proper bearing or ring clearances. Many parts also have to be measured to determine relationships. This includes checking deck height, piston height, rod length, bearing clearances, camshaft and crankshaft end play, installed valve heights, piston- to- bore clearance, ring end gaps, compression ratio (CC the heads), valve guide clearances, even pushrod length. The “must have” tools here include a dial indicator, depth and height gauges, feeler gauges and a valve spring tester. A valve spring test stand will tell you a lot about valve springs. You can eyeball or measure a set of springs to see if any are shorter (weaker) than the others, but unless you actually test each spring to see how much pressure each spring exerts you can’t be sure if the springs meet specifications or not. For Pro. Stock drag racing applications, you’ll need a valve spring tester that can check pressures up to 2. Useful test information includes such variables as open and seated spring pressure, spring rates at various heights, and spring bind height and clearance. Another “must have” tool for serious performance work would be some type of camshaft analysis software, camshaft stand and electronic probe. This type of equipment and software can be used to check cam straightness, base circle run out, lobe positions, opening and closing points, lobe area, valve acceleration, duration and lift. The software can allow you to document every aspect of camshaft performance for customer reports or later reference. Tooling Starter Kits (like this 3- D Fast Cut kit from Goodson) is a great way to build tooling inventory and add pieces later for different jobs. Never assume a cam is correct out of the box, even with a stock engine rebuild. Mistakes sometimes happen, so it is better to catch a defective cam on the workbench than after the cam has been installed. Software that allows you to log critical dimensional measurements and list all of the parts you are putting into an engine is another “must have” tool for performance work. Some software allows you to build a virtual engine to check compression ratios, valve- to- piston clearances and more, so any mistakes can be caught before the parts are actually assembled. Engine simulator software takes the process a step further to predict the outcome of various performance modifications. Simulations include things like predicted horsepower and torque, fuel flow, airflow, piston and valve clearances based on the information you input into the program. For checking straightness across head and block deck surfaces as well as cam and main bore alignment, you need a straight edge ruler – one that is actually straight and true. The accuracy of your straight edge should be checked periodically by placing it on a flat surface and checking any gaps with a feeler gauge, then flipping it over to see if you get the same readings. If the readings don’t match, it isn’t straight. Measuring is also critical when surfacing, boring, honing and grinding to monitor how much metal is being removed and where. Most machines will have some type of gauging to monitor what you are doing. But how accurate is the gauging and when was the last time you checked it? Machine tools and fixturing must also be leveled and adjusted properly BEFORE you start machining any metal. Mistakes here can be very costly. For high end performance work, you should invest in a profilometer to check cylinder bore and surface finish perimeters such as roughness average (RA), average peak height (Rpk), average valley depth (Rv. K), and Rz, which is the average difference between the peak height (Rpk) and valley depth (Rvk). RA can have a wide variance across a given surface profile, so Rz gives a more accurate indication of the actual texture across the surface. Most gasket manufacturers now specify surface finish requirements in Rz because it is more accurate than Ra. Many shops assume that the boring or surfacing procedure and equipment they are using is delivering the desired results. But have you ever checked it? You may be surprised to discover that the finishes you thought you were achieving are not as good as they should be. Crack detection equipment is also a “must have” for every shop. This requires magnetic particle inspection equipment for checking iron parts, and penetrating dye and UV light for checking aluminum castings. Porosity leaks in aluminum blocks and heads can be hard to see and require a pressure tester and/or water tank to reveal the leaks. Ultrasonic testers are also available for finding hidden flaws and defects inside many parts. An ultrasonic tester sends sound waves into a part, then listens for return pings that would indicate a problem hidden below the surface. Ultrasonic equipment can also be used to measure wall thickness in castings, which is important if you are boring out a block and are uncertain how far you can safely go. Valve and seat work requires an assortment of valve guide and seat tools including valve guide reamers, pullers and drivers, seat cutters and even a die grinder if you are doing any hand porting or blending work. Seat concentricity needs to be checked with a dial gauge. Installed valve height is another dimension that also needs to be measured with a height gauge or valve spring height micrometer. A valve spring height micrometer is substituted for a valve spring, expanded until it takes up all the slack between the spring seat and valve retainer and fully seats the valve. The reading on the micrometer then shows you the actual height of the spring. You can then determine if the springs need to be shimmed to achieve the desired close seat pressure. Cordless shop tools are now capable of competing with pneumatic and corded power tools.
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December 2016
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