The following instructions begin after the timing cover and old timing set have been removed.
Installing the timing set and degreeing the camshaft will be easier if you loosen the rocker arms so that the camshaft can turn freely. You should be able to turn the camshaft by hand. Make sure that the engine mounting surfaces and your new timing set have been thoroughly cleaned with a good solvent. If you are using a timing set with three keyways, select the appropriate keyway for your camshaft timing specifications. COMP Cams ® recommends the standard timing position for most applications. This position uses the round or “O” timing and keyway marks. Standard Timing Location: This is the same as original O.E.M. setting. Use keyway and crankshaft gear tooth marked “O”.
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Tools and supplies needed:
1. Basic hand tools as required for your particular camshaft and balancer bolts
2. Torque wrench
3. Pro Cam Lube (part #153 or #154) or suitable replacement
4. Camshaft Degree Kit (part #4796 including degree video)
5. Crankshaft Socket (part #4798 for Ford 302-351W, 429-460)
6. Thread locking compound
7. Engine repair manual for your particular engine
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1. When you doing the camshaft on Nissan GA16DE installation, it is highly recommended that an oil and filter change be done before installing new cams.
2. Remove the distributor, and valve cover from the engine. Use caution not to drop anything into the engine.
3. With the parking brake on, and the car out of gear (neutral), rotate the crankshaft clockwise until #1 cylinder is at TDC Read the rest of this entry »

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1. It is highly recommended that an oil and filter change be done before installing new cams.
2. Remove the plug wires, and valve cover from the engine. Use caution not to drop anything into the engine.
3. With the parking brake on, and the car out of gear (neutral), rotate the crankshaft clockwise until #1 cylinder is at TDC Read the rest of this entry »

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Due to differences in manufacturing, dimensions and inflated measurements, tire and wheel combinations should be test fit prior to installation. Tire and wheel choice is crucial in assuring proper fit, performance, and the safety of your Pro Comp equipped vehicle. For this application, a wheel not to exceed 10” in width with a minimum backspacing of 3.25” must be used. Additionally, a quality tire of radial design, not exceeding 33” tall X 12.5” wide is recommended. Please note that the use of a 33” X 12.5” tire may require fender modification. Violation of these recommendations will not be endorsed as acceptable by Pro Comp Suspension and will void any and all warranties either written or implied.
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If you do not have the proper tools and knowledge to successfully complete this installation, have a professional Nissan mechanic do it for you. This information is not complete, and is only a supplement to the factory Nissan manual. Refer to the factory manual for information not contained in this supplement.
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The terminals of this Distributor require spark plug style terminals. You may need to change the terminals and boots of your wires. MSD offers a kit, PN 8849 that is supplied with nine boots and terminals for this style cap.
TIMING FUNCTIONS
Before continuing with the installation, here are a few definitions you should be aware of:
Initial Timing: This is the base timing (also referred to as idle timing) of the engine before the centrifugal advance begins.
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The design and use of these roller tappets requires an adequate supply of oil for proper lubrication and cooling. Many of the newer racing oil pans reduce windage and eliminate splash oiling. Utilizing oil restrictors can reduce important oil flow to the tappets and will cause needle bearing failure, axle failure, and severe tappet body damage. Be sure that your oiling system provides adequate oiling to cool and lubricate your roller tappets and the balance of your valve train components.
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Before continuing with the  installation, here are a few definitions you should be aware of:
Initial Timing: This  is  the  base  timing  (also  referred  to  as  idle  timing)  of  the  engine  before  the centrifugal  advance begins.
Centrifugal Advance: The centrifugal (or mechanical) advance mechanism is made  up of weights, springs,  advance cams, and an advance stop bushing. The amount and rate of  advance that your distributor  is capable of is determined by the centrifugal timing.  If you ever wish to lock out the centrifugal advance, refer to the centrifugal advance section. 
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Note: An MSD Ignition Control is required to use these distributors. WARNING: Before installing the MSD Distributor, disconnect the battery cables. When disconnecting the battery cables, always remove the Negative (-) cable first and install it last. Note: The terminals of this Distributor require spark plug style terminals. You may need to change the terminals and boots of your wires. MSD offers two kits, PN 8849 or PN 8848 that are supplied with nine boots and terminals.
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