Filed Under (Ford) by admin on 04-10-2010
Engine miss, spark knock, buck/jerk, surge and other driveability concerns may be caused by induction crossfire. This occurs because of improperly routed spark plug wires. ACTION: If spark plug replacement is performed, the correct firing order and spark plug wire routing is essential to prevent the possibility of induction crossfire between cylinders. Refer to the following procedures for inspection of the spark plug wire routing and firing order. Properly reroute the spark plug wires if required. FIRING ORDER ^ The firing order for 1987-1993 vehicles is 1-5-4-2-6-3-7-8. If # 7 and # 8, or # 2 and # 4 spark plug wires are routed next to each other at the separation bracket, an induction crossfire condition can occur. ^ The firing order for 1994 vehicles is 1-3-7-2-6-5-4-8. On these vehicles the # 1 and # 3, or # 5 and # 6 spark plug wires must be separated to eliminate the possibility of an induction crossfire. ^ To eliminate the possibility of the coil wire becoming disconnected, route the coil wire under the spark plug wires at the distributor cap. 1987-1993 VEHICLES
Filed Under (Buick) by admin on 18-01-2011
Engine Electrical > Firing Orders Firing Orders To avoid confusion, always replace spark plugs and wires one at a time. Replacing spark plugs and wires one at a time will help prevent incorrect wire routing or cross-firing resulting from an incorrect firing order. If more than one wire is to be disconnected at a single time, be sure to tag all of the cables to assure proper installation. Also, be disconnecting the cables, compare the firing order and routing to these diagrams and note any differences for installation purposes. This will help assure the wires are properly installed.
Filed Under (Honda) by admin on 22-04-2010
TIMING & BALANCE SHAFT BELTS Removal 1. Disconnect negative battery cable. Position crankshaft with cylinder No. 1 at TDC of compression stroke. See Fig. 1 , Fig. 2 or Fig. 3 . Disconnect battery negative cable. Remove splash shield. Remove cruise control actuator, leaving cable connected. Remove power steering pump, leaving hoses connected. 2. Disconnect alternator wiring. Remove wiring harness from valve cover. Remove alternator and A/C belts (if equipped). Remove valve cover and upper timing belt cover. Remove side engine mount. Remove engine oil dipstick and tube. Remove crankshaft pulley. See Fig. 4 . 3. Support engine. Remove 2 rear bolts from engine center support beam. Lower engine enough to permit removal of lower timing belt cover. Remove rubber seal from belt tension adjuster nut. Remove lower timing belt cover. CAUTION: DO NOT rotate crankshaft or camshaft when removing timing belts.
Filed Under (Subaru) by admin on 24-07-2010
REMOVAL CAUTION: All spark plugs installed on an engine, must be of the same heat range. Spark plug CHAMPION: RC10YC4 NGK: BKR5E-11 (Alternate) NGK: BKR6E-11 (Alternate) RH SIDE 1. Disconnect the ground cable from battery. 2. Remove the resonator chamber. 3. Remove the spark plug cords by pulling boot, not the cord itself. 4. Remove the spark plugs with spark plug sockets. LH SIDE 1. Disconnect the around cable from battery. 2. Remove the two bolts which hold washer tank, and then disconnect the washer motor connector. 3. Disconnect the rear window glass washer hose from washer motor, then plug connection with a suitable cap. 4. Hang the washer tank away from working area. 5. Remove the spark plugs cord by pulling boot, not the cord itself. 6. Remove the spark plugs with spark plug sockets. INSTALLATION RH SIDE 1. Install in the reverse order of removal. Tightening torque (Spark plug): 21 No.m (2.1 kegs.m, 15.2 ft.lb) CAUTION: The above torque should be only applied to new spark plugs without oil on their threads. In case their threads are lubricated, the torque should be reduced by approx. 1/3 of the specified torque in order to avoid over-stressing. LH SIDE 1. Install in the reverse order of removal. Tightening torque (Spark plug): 21 No.m (2.1 kegs.m, 15.2 ft.lb) CAUTION: The above torque should be only applied to new spark plugs without oil on their threads. In case their threads are lubricated, the torque should be reduced by approx. 1/3 of the specified torque in order to avoid over-stressing.
Filed Under (Chevrolet) by admin on 19-09-2010
1. Disconnect the spark plug wire at each spark plug. ^ Twist the boots 1/2 turn before removing the boots. ^ Pull only on the boot or use a tool designed for this purpose in order to remove the wire from each spark plug. 2. Disconnect the spark plug wire from the distributor. ^ Twist each spark plug boot 1/2 turn. ^ Pull only on the boot or use a tool designed for this purpose in order to remove the wires from the distributor. INSTALLATION PROCEDURE NOTE: If the boot to wire movement has occurred, the boot will give a false visual impression of being fully seated. Ensure that the boots have been properly assembled by pushing sideways on the installed boots. Failure to properly seat the terminal onto the spark plug will lead to wire core erosion and result in an engine misfire or crossfire condition, and possible internal damage to the engine. 1. Install the spark plug wires at the distributor. 2. Install the spark plug wire to each spark plug. 3. Inspect the wires for proper installation: 3.1. Push sideways on each boot in order to inspect the seating. 3.2. Reinstall any loose boot. 3.3. Wire routings must be kept intact during service and followed exactly when wires have been disconnected or when replacement of the wires is necessary. Failure to route the wires properly can lead to radio ignition noise and crossfiring of the plugs, or shorting of the leads to the ground. 3.4. Any time the spark plug wires or boots are installed on the spark plugs, new dielectric grease needs to be applied inside the boot.