The rotary files are for touching up the ridges and edges in the ports or for port matching the heads and intake manifold. Lubricants Get yourself some camshaft installation lubricant. Each type of failure requires a different repair. Used in everything from medium-duty trucks to Corvettes, these engines are worth rebuilding. This volume includes a huge range of cutting-edge aftermarket parts and advanced tuning techniques.
Specialty Tools The depth and breadth of the rebuild will determine the list of specialty tools needed. Visually inspect the rocker arm for abnormal wear in the fulcrum socket; the rocker tip should be smooth, not grooved like the tip of this rocker. Harmonic Damper Inspect the harmonic damper for visible cracks in the keyway or any part, a worn-out seal between the hub and the outer ring, and a groove in the hub where the seal in the timing cover meets the damper hub. Air Tools An air compressor is not a necessary item for working on your engine. Using these products changes the amount of torque applied during installation. There is a lot to take in here.
Vizard explains how to minimize intake-valve shrouding, reveals the science behind all cam-timing events, and explains how to arrive at the correct valve overlap for maximum efficiency. The amount of hard carbon deposits under the shield depends on the mileage of the engine. Best Tools for the Job Basically, the best tools on the market wear the name Craftsman. When a head gasket fails, the water escaping the coolant passage or compression leaking out of the combustion chamber can cause pathways or grooves in the head gasket surface of the block and heads. This volume provides an unparalleled level of information for rebuilding a big-block Chevy, so your rebuild project is hassle-free and successful. If you had used paper towels and a small stray piece of paper got left in the engine it would dissolve in the oil.
Tells you how to do a complete overhaul or a simple parts swap. He currently owns and runs an engine research and development business in Charlotte, North Carolina. Step 11: Check the Crankshaft Precision Measurement A few quick checks indicate the condition of your crankshaft. The Chevy big-block has been substantially under-valved, and the key to getting the best performance from this engine is to deal effectively with this design limitation. Written by Tony Huntimer and Posted with Permission of CarTechBooks.
They are your life, your hands, and your eyes. How do I purchase an eBook? Often referred to as Vizard the Wizard, his work is often the subject of blogs and editorial pieces in popular automotive magazines. These are used for numbering rods. No extra shipping charges will be added to your order. The size of the rod journals should not be less than 2. I'm not tearing down my original '71 402, as it is 'original' only once! Also the introduction of evacupan fittings in the exhaust to make vacuum in the block for oil control. Building a replacement engine, while keeping and mothballing my original is the plan I choose.
They offer a specially blended Teflon sealant that lubricates and seals threads in applications— sealing out coolant, water, and gasoline. Organize your eBooks into a custom library and annotate pages. Treasure them and protect them. In addition, high-performance upgrades are covered as well as torque specs for major components, setting cylinder firing order, main bearing cap torque sequence, and much more. When removing the valves, you know if they had a ridge you needed to file down and might have noticed if they felt loose in the guides when you took them out. Give the entire casting a once over and look for visible defects, which include worn valve guides, damaged threads, deterioration around the coolant passages, chunks of material missing, or cracks in any part of the casting. The main caps should fit tightly in the block registers.
Of the three, the conventional clicker torque wrench is the most commonly used by professionals. This design was a giant performance leap ahead of the old Chevy wedge big-block. As a follow-up title to his How to Build Max-Performance Chevy Big-Blocks on a Budget, master engine builder David Vizard takes big-block Chevy engine building to the next level and shows how to build these extreme high-performance engines without breaking the bank. This is the only way the cam should rest in the block. Also run that gauge in the cylinder bores for out-ofround bores.
For this build we used Ultra Black, No. Nitrile gloves work better than silicone work gloves because they do not break down as fast when subjected to harsh cleaners and solvents. Not everyone is going to replace everything in the engine, so if you are replacing all the internal parts for new ones, you can skim through this chapter to pick up some knowledge and move on to the next chapter. When working on or around your engine, there may be an accident or an unforeseeable occasion when your engine starts to fall toward the ground. After 5,000 miles, the rings will be seated and you can take your chances and switch to whatever protection- lacking newly regulated oil you choose. Includes comprehensive specifications and casting numbers.
They make the process easy by supplying a precision degree wheel, dial indicator, special cylinder-head mount, piston-stop, pointer, and valve checking springs in a nice carrying case. All camshaft companies offer a suggested camshaft assembly lubricant. If you find visual damage on your parts before going to the machine shop, you can save yourself some money by not paying them to do the same thing. If you can get a pressure washer, try to find one that allows you to add solvent or soap to a reservoir that mixes the cleaner with the hot water stream. However, he balances this with the caution that bigger is not always better, and engine life is part of the budget mindset.