Question about 1985 Buick Century

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I cannot find the distributor markings for the number one plug wire

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  • Buick Master
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Not sure which engine you have. here are several options. If yours doesn't match one of these, please get back to me.

2.5 Liter

I cannot find the distributor - 4fdf49f.gif

2.8 Liter

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3.0 and 3.8 Liter

Posted on Oct 16, 2010

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2 Answers

How do you tell when it is in compression


If you don't have a compression gauge. Stick your finger in the spark plug hole and plug it up. When you feel the pressure building and pushing your finger out its in the compression stroke.

Aug 28, 2014 | Mitsubishi Mighty Max Cars & Trucks

1 Answer

How to replace a distributor


disconnect the cable from the negative battry terminal. position the engine with number one cylinder at TDC on the compression stroke this mean you can take number one spark plug out with the engine cool place your thumb over the spark hole and have some one turn the engine over and and feel the presure by your thumb when you feel pressure stop turning engine take the distributor cap and make sure the rotor is pointing to number one spark wire in distributor cap if not you may have to turn the engine a little with your hand apply a paint mark on the edge of the distributor body directly below the rotor tip. also make a mark on the distributor base to the engine to ensure the distributor can be re-installed in exactly the same position as originally installed disconnected the coil wires from the distributor cap electrical connector, spark plug wires from the spark plugs remove the distributor hold-down bolt and pull out the distributor.

Jun 04, 2014 | 1995 Land Rover Discovery

1 Answer

4hf1 engine timing marks


Mark the spark plug wires for the cylinder number using a short piece of masking tape on each wire. Remove all the spark plugs using the spark plug wrench. The engine will be easier to turn by hand with the spark plugs removed and it's a good time to replace them if required. Remove the valve cover from over the number one cylinder. On a V-block engine this is normally the valve cover on the driver's side. On in-line engines the number one cylinder is the one closest to the front of the car. Check your vehicle's specifications to be sure which cylinder is number one.

Rotate the engine clockwise and observe the valves on the number one cylinder. When both valves are in the up position, insert a screwdriver into the number one cylinder through the spark plug hole. Rotate the engine very slowly back and forth until the screwdriver is at the maximum height. This indicates the number one cylinder is at Top Dead Center or "TDC" on the compression stroke.

Locate the number one spark plug wire on distributor cap and make a tic-mark of this position with a marker pen on the distributor housing. Remove the distributor cap and observe the position of the rotor.

Loosen the distributor hold down bolt and turn distributor until the rotor is lined up with the mark you made in Step 3. Your timing is now set to zero degrees of mechanical timing.

Replace the valve cover using a new gasket. Replace the spark plugs and spark plug wires using the marks from Step 1. You may want to mark the harmonic balancer with a zero point referenced to a fixed point on the engine. A fixed point could be a bolt head or accessory bracket that does not move when the engine is running. Later on this mark can be used as an indicator for stroboscopic timing.

Connect a vacuum gauge to a manifold vacuum source. Most engines will have a port at the base of the carburetor or throttle body where a gauge can be connected. Start the engine and observe the vacuum gauge reading.

Turn the distributor until the maximum vacuum gauge reading is noted. Back off one inch of vacuum from the maximum reading. Tighten the distributor hold down bolt. Normal readings average from 14 to 21 inches of vacuum depending on the condition of the engine.

Test drive the vehicle and listen for pinging noises. Repeat Steps 5 and 6 if excessive pinging is heard, or if there is a significant loss of power. The timing is correct when the vehicle operates at maximum power without the engine hard starting, backfiring, or pinging on acceleration.

Dec 05, 2013 | 1995 Isuzu Pickup

1 Answer

Spark plug wiring from distributor cap to spark plugs on a 95 honda civic dx 1.5 liter 16 valve sohc


If you look at the distributor cap from the wires side carefully, you would find either a line mark on one of the outer side of four holes (where the spark plug wires are inserted) or the numbers printed on the top of distributor cap (1,3,4,2). Fix one end of the longest high tension plug wire into number 1 hole or the one marked with a line mark on the distributor cap and the other end on spark plug number 1 (the number 1 plug is toward the pulleys and the belts side, then No 2, No 3 and No 4). While standing in front of right wheel you will see the distributor cap in front of you. The rotor moves clock wise. After you fix the 1st cord, next comes number 3 plug wire. Insert one end of the cord into the next to 1 on the right hand side and press the other side of the cord on spark plug number 3. Next to 3 is the cord number 4 and the last one is number 2.

Mar 22, 2013 | Honda Civic Cars & Trucks

1 Answer

Need firing order on 96 Chevy Silverado and how to place the distributor


Distributor

ABCDEFGHIJKLMNOPQRSTUVWXYZ

Inspect/Replace

To Remove
  • Disconnect the distributor wiring connector and the vacuum advance hose, if the vehicle is so equipped.
  • Remove the distributor cap and note the position of the rotor. Mark the position on the distributor housing.
  • On some vehicles, it may be necessary to remove the spark plug wires from the cap prior to cap removal.
  • Note the position of the vacuum advance, then remove the distributor holddown bolt and clamp.
  • Pull the distributor from the engine. Most distributors will need to be twisted as they are pulled out of their bore.
  • Once the distributor is removed, install a shop towel in the distributor opening to keep foreign material out of the engine block.
  • The entire assembly should be cleaned thoroughly. Make sure all solvent residue is completely removed.
Installing and Timing a Distributor
The following procedure may be followed to install the distributor and time it to the engine, if all reference marks were made during the removal of the distributor:
  • Lubricate the O-ring on the distributor shaft.
  • Position the rotor so that it is aligned with the mark made on the distributor housing prior to removal.
  • Align the distributor housing with the mark made on the engine block during removal.
  • Lower the distributor into the engine block, making sure the distributor drive is fully seated.
  • Distributors equipped with a helical drive gear will rotate at the distributor is being installed, causing the distributor to move away from the reference marks.
  • Pay attention to how much the rotor moves.
  • Remove the distributor and move the rotor backward the same amount. This should allow the shaft to rotate while the distributor is being installed and still be aligned with the reference marks.
  • Make sure the distributor housing is fully seated against the engine block. Sometimes it may be necessary to wiggle or rock the distributor to seat it fully into the drive gear.
  • Distributors with drive lugs must be mated with the drive grooves in the camshaft. Both are offset to eliminate the possibility of installing a distributor 180 degrees out of time.
f22-52.gif The distributor must be aligned with the camshaft drive to seat the distributor in the engine block or cylinder head.
  • Rotate the distributor a small amount so the timer core teeth and pick-up teeth are aligned.
  • Install the distributor holddown clamp and bolt, leaving the bolt slightly loose.
  • Install the spark plug wires in the direction of distributor shaft rotation and in the cylinder firing order.
  • Connect the distributor wiring connectors. The vacuum advance hose is usually left disconnected until the timing is set with the engine running.
If the engine has been cranked while the distributor is removed, or no marks were made during removal, use this procedure to reinstall the distributor:
To be sure that the number one cylinder is on its compression stroke, observe the rocker arms to see that they are both moving. Then, rotate the crankshaft one revolution until the rocker arms for the companion to cylinder number one are both moving at TDC (top dead center). Align the timing mark and install the distributor with its rotor pointing to the number one spark plug cable in the distributor cap.
f22-01.jpg
  • Remove the spark plug from cylinder #1. Install a test plug in the end of the spark plug wire and position the test plug away from you and cylinder #1.
f22-02.jpg
  • Place your thumb over the bore for the spark plug and crank the engine until compression is felt.
f22-03.jpg
  • Lightly crank the engine while observing the timing marks on the crankshaft pulley. Once the timing marks are aligned, stop cranking.
f22-04.jpg
  • Identify the position for the #1 spark plug wire on the distributor cap.
f22-05.jpg
  • Determine which way the distributor shaft will rotate when it is lowered onto the camshaft gear. Then position the rotor so that it will be under the #1 terminal on the distributor cap after the distributor gear is meshed with the camshaft gear.
f22-06.jpg
  • After the distributor is installed in the engine, turn the distributor housing slightly so the pickup coil is aligned with the reluctor.
f22-07.jpg
  • Install the distributor holddown clamp and bolt. Hand tighten the bolt.
f22-08.jpg
  • Connect the pickup leads to the wiring harness.
f22-09.jpg
  • Install the spark plug wires onto the distributor cap according to the engine's firing order. Check to make sure everything that was disconnected before the distributor was removed, is now connected. Connect a timing light and prepare the engine for an ignition timing check and adjustment.

Feb 17, 2013 | Cars & Trucks

1 Answer

How to line distributor shaft when replacing ignition control module on a 1991 ford f150 v8 truck


Set the engine to the number one compression,and bring the timing mark to zero on the harmonic balancer.(or just bring the timing on the harmonic to zero). mark to match the plug wires to cap,remove the cap.(if you can remove the cap without removing plug wire) mark the rotor position to the engine using a scribe, mark the rotor to the distributor, mark the distributor to the engine using a scribe,Take the lock down bolt out and pull out distributor. when you reinstall line up all your marking and check timing.

Mar 08, 2012 | 1991 Ford F150

1 Answer

I need to replace ,the rotor button...


TAG OR NUMBER ALL SPARK PLUG WIRES ON THE DISTRIBUTOR CAP BEFORE REMOVING CAP. SO YOU CAN PUT PLUGS WIRES BACK IN THE ORIGINAL POSITION. WHEN ALL PLUGS WIRES ON DISTRIBUTOR CAP BEEN NUMBER.REMOVE ALL PLUG WIRES ON CAP.THEN REMOVE THE DISTRIBUTOR CAP.THEN MARK ROTOR POSITION WITH SHARPIE MARKER THEN REMOVE THE ROTOR.

Mar 02, 2011 | Chevrolet 1500 Cars & Trucks

1 Answer

On a 94 Jeep YJ 2.5 what order do the spark plug wires go to the plugs off the distributor cap?


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Number 3 and number 1 cylinders are marked twice; Once on the wire and once on the distributor, but they are the same location and same wire.

Apr 30, 2010 | 1994 Jeep Wrangler

2 Answers

1987 GMC Jimmy Distributor cap and Rotor replacement


A diagram may not be needed as its a reasonably easy fix to do on your own.the distributor ca p will only fit on properly one way because at the base of the cap locaters can only fit the distributor if they line up.When doing the spark plug leads do them one at a time and if nessecary write or mark leads as 1,2 etc .The rotor can only fit on one way but put a mark on the distributor to show where the rotor was pointing when you took it off and if it still points there when the new one is fitted.When changing distributor cap and leads they have to go to the correct place.Pays to mark the outside of distributor cap where the locating bits are On the new and old one.Fit the new cap and rotor then take a spark plug lead and fit to new cap 1 at a time.You can tell by lining up the marks on the outside of the distributor cap when you hold them one on top of the other.Good luck

Oct 20, 2008 | 1987 GMC Jimmy

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