Check for adequate hood height, Manifold removal procedure, Installing your new black diamond® manifold – Quick Fuel Technology 701-1BD BLACK DIAMOND INTAKE MANIFOLD SMALL BLOCK CHEVROLET User Manual
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CHECK FOR ADEQUATE HOOD HEIGHT:
1. We recommend making several columns of modeling clay and placing them on your air cleaner in various positions.
2. Close the hood completely and then reopen it.
3. Measure the clay columns and record your hood clearance.
4. Compare the A-B height of your old intake manifold with your new intake manifold. Also consider that the carburetor/air
cleaner combination determines the difference in the air cleaner to hood clearance.
MANIFOLD REMOVAL PROCEDURE:
1. Disconnect the ground cable from the battery.
2. Clean any loose debris, dirt, and grease from the top of the engine adjacent to the intake manifold and valve covers. This
will help prevent harmful debris from falling into the engine during the installation process.
3. Identify the vacuum and crankcase ventilation hoses (if any) leading to air cleaner and note the routing and connection
points. Remove the air cleaner.
4. Prior to removing any other vacuum lines, identify the routing of the lines. Mark and remove the vacuum lines from the
carburetor and/or intake manifold.
WARNING: Hot water and steam may be present if the engine is still warm.
5. Drain the radiator. (It may be necessary to remove the bottom radiator hose if there is no drain plug in the radiator).
6. Disconnect the throttle linkage, transmission kick-down linkage (auto trans. only), and choke rod from the carburetor, (if
applicable).
7. Loosen the gas cap to relieve pressure from the fuel system. Disconnect the fuel line at the carburetor. Plug the end of the
fuel line to prevent fuel leakage.
8. Remove the carburetor.
9. Tag and disconnect the ignition coil and sensor wires. Remove the ignition coil bracket and the coil.
10. Remove the radiator hose, thermostat housing, and the thermostat.
11. Remove all water and vacuum fittings from the manifold.
12. Remove all remaining brackets (if any) from the manifold.
13. Loosen and remove the valve covers to assist in the manifold removal and the new manifold installation.
14. DISTRIBUTOR REMOVAL PROCEDURE:
CAUTION! FOLLOW THESE INSTRUCTIONS CAREFULLY, AS SERIOUS DAMAGE CAN OCCUR WHEN THE
IGNITION IS NOT RE-INSTALLED CORRECTLY.
Set the engine on Top Dead Center (after compression stroke) for #1 cylinder using the crankshaft timing marker.
Remove the distributor cap.
Note the position of the rotor and make a mark on the distributor body in line with the rotor tip (it should point to the
position of the cylinder #1 spark plug wire on the distributor cap).
Note the position of the distributor vacuum canister (or other distributor body feature) and place some type of reference
mark on a convenient surface not attached to the intake manifold.
Note the position of the points, if open, how much; if closed, note the distance from the point block to the cam lobe. If
the distributor has a magnetic pickup, note the position of the trigger wheel with respect to the pick-up.
Remove the distributor. DO NOT rotate the engine after removing the distributor (but if you do, the crankshaft timing
marker is your reference).
15. Remove the 12 intake manifold-to-cylinder head bolts.
16. Remove the intake manifold. If the intake manifold is stuck hard to the mounting flanges, do not pry against cylinder head
port flanges, as they could become damaged and compromise the gasket sealing with your new intake manifold. Double
check that all of the bolts have been removed and pry upward carefully at the engine block end seal surfaces.
INSTALLING YOUR NEW BLACK DIAMOND® MANIFOLD:
1. Clean the cylinder head port flange and the engine block end seal surfaces. To prevent gasket pieces from falling into ports
and the lifter valley when cleaning old gaskets from head surfaces, stuff paper towels into all the ports and lay rags in the
lifter valley. When clean, carefully remove the paper towels from the cylinder head ports and then the rags from the lifter
valley. Make sure that all particles that fell on the rags are completely removed. Wipe surfaces with rags soaked in solvent,
such as brake cleaner or lacquer thinner to remove any oils or grease. This is a must for proper manifold/gasket sealing.
2. Apply a thin coat of gasket adhesive to the cylinder head side of the intake gasket surfaces and the cylinder head port
flanges. Allow the adhesive to completely dry. Lay the manifold gaskets in place, making sure that gaskets are adhered to
the cylinder head port flange and will not slip from their properly installed positions.
3. Trial fit your new intake manifold before applying any RTV silicone sealant. Place the new intake manifold into position;
check that it sits down, properly seated on the intake manifold gaskets. There should be gap between the engine block and
the manifold at the end seal surfaces. Check to make sure all of the intake manifold bolts can be installed. If there are any
other fit issues such as hood clearance or installation of components dependent on the manifold, they should be checked at
this time.