Replacement of Spark Plug leads, Distributor cap, rotor for T100

I'm sorry to hear that you're having trouble with your 1989 Mitsubishi Eclipse. Here are a few things that you can check to try to get spark to the spark plugs: Check the spark plug wires: The spark plug wires can become damaged over time, which can prevent spark from reaching the spark plugs. Inspect the spark plug wires for any cracks or breaks. If you find any damage, replace the spark plug wires. Check the spark plugs: The spark plugs can also become fouled or damaged over time, which can prevent spark from reaching the spark plugs. Remove the spark plugs and inspect them for any damage. If you find any damage, replace the spark plugs. Check the ignition coil: The ignition coil is responsible for generating the spark that ignites the fuel in the engine. If the ignition coil is faulty, it can prevent spark from reaching the spark plugs. Inspect the ignition coil for any damage or signs of wear. If you find any damage, replace the ignition coil. Check the distributor cap and rotor: The distributor cap and rotor are responsible for distributing the spark from the ignition coil to the spark plugs. If the distributor cap or rotor is faulty, it can prevent spark from reaching the spark plugs. Inspect the distributor cap and rotor for any damage or signs of wear. If you find any damage, replace the distributor cap and rotor. If you have checked all of these things and you are still not getting spark to the spark plugs, it is possible that there is a problem with the engine's computer. In this case, it is best to take the vehicle to a qualified mechanic for diagnosis and repair. Here are some tips to help prevent these problems from happening in the future: Change your spark plugs and spark plug wires according to the manufacturer's recommendations. Keep your engine clean and well-maintained. Avoid running your vehicle on low fuel. If you notice any problems with your vehicle's performance, have it checked out by a qualified mechanic as soon as possible.

Hi there:
Check this removal procedure (See Figures 1 through 5)

1. Disconnect the negative battery cable.
2. Unfasten the retaining clips (only remove the coil wire if necessary) and lift the distributor cap straight off. It will be easier to install the distributor if the spark plug wiring is left connected to the cap. If the plug wires must be removed from the cap, mark their positions to aid in installation.
3. Remove the dust cover and mark the position of the rotor relative to the distributor body; then mark the position of the distributor body relative to the engine block.
4. Detach the harness assembly connector.
5. Remove the pinch-bolt and lift the distributor straight out, away from the engine. The rotor and body are marked so that they can be returned to the position from which they were removed. Do not turn or disturb the engine (unless absolutely necessary) after the distributor assembly has been removed.

Exploded view of the distributor assembly-6-cylinder engine






Align the mark on the housing with the mark on the shaft-VG30i and VG30E engines





After the distributor assembly has been installed, the rotor should be in this position-VG30i and VG30E engines




After the distributor assembly has been installed, the rotor should be in this position-KA24E engine



INSTALLATIONTiming Not Disturbed

1. Insert the distributor in the block and align ALL matchmarks made during removal.
2. Engage the distributor driven gear with the distributor drive.
3. Install the distributor clamp and secure it with the pinch-bolt.
4. Install the distributor cap and fasten the harness electrical connector.
5. If necessary, install the spark plug wires and coil wire.
6. Start the engine. Check the timing and adjust it if necessary.

Timing Disturbed

1. It is necessary to place the No. 1 cylinder in the firing position to correctly install the distributor. To locate this position, the ignition timing marks on the crankshaft front pulley can be used.
2. Remove the No. 1 cylinder spark plug. Turn the crankshaft until the piston in the No. 1 cylinder is moving up on the compression stroke. This can be determined by placing your thumb over the spark plug hole and feeling the air being forced out of the cylinder. Stop turning the crankshaft when the timing marks indicate TDC or 0 .
3. Oil the distributor housing lightly where the distributor bears on the cylinder block.
4. Install the distributor so that the rotor, which is mounted on the shaft, points toward the No. 1 spark plug terminal tower position when the cap is installed. Of course, you won't be able to see the direction in which the rotor is pointing if the cap is installed, so lay the cap on the top of the distributor and make a mark on the side of the distributor housing just below the No. 1 spark plug terminal. Make sure that the rotor points toward that mark when you install the distributor.

On the VG30i and VG30E engines, align the mark on the distributor shaft with the protruding mark on the housing.

1. When the distributor shaft has reached the bottom of the hole, gently move the rotor back and forth slightly until the driving lug on the end of the shaft enter the slots cut in the end of the oil pump shaft and the distributor assembly slides down into place.

On the VG30i and VG30E engines, the distributor rotor tip should be in the 11 o'clock position.

1. Fasten the distributor hold-down bolt.
2. Install the spark plug into the No. 1 spark plug hole.
3. Install the distributor cap and engage the harness electrical connector.
4. If necessary, attach the spark plug wires and coil wire.
5. Start the engine. Check the timing and adjust it if necessary.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day

The distributor cap may be faulty, it could be cracked or the spark is arcing to ground, or the rotor button is faulty. Also check the spark plug leads from the distributor to the spark plugs.
If the distributor is faulty (ie cracked or there is a carbon track on the inside of the distributor cap) then replace the distributor.
If the rotor button is faulty, then replace the rotor button.

Firing order is 1-3-4-2 Please rate if this helps

Installation of wires

1. Whenever a high tension wire is removed for any reason from a spark plug, coil or distributor cap, or a new high tension wire is installed, Silicone Dielectric Compound WA-10, D7AZ-19A331-A (ESE-M1C171-A) or equivalent must be applied to boot before it is reconnected. Using a small clean tool, coat entire interior surface of boot with Silicone Dielectric Compound WA-10, D7AZ-19A331-A (ESE-M1C171-A) or equivalent.

1. Insert each wire on proper terminal of distributor cap. Ensure wires are all the way down over their terminals. The No. 1 terminal is identified on cap. Install wires starting with No. 1 terminal.

1. Remove wire retaining brackets from old high tension wire set and install them on new set in same relative position. Install wires in brackets on valve rocker arm covers.

1. Connect wires to proper spark plugs.

1. Install coil wire.

Installation of distributor
Before installing distributor, visually inspect distributor. Inspect O-ring. It should fit tightly and be free of cuts. The drive gear should be free of nicks, cracks and excessive wear. Rotate distributor drive shaft. It should move freely, without binding.

1. To install distributor correctly, No. 1 piston must be at Top Dead Center (TDC) of compression stroke. Remove No. 1 cylinder spark plug and rotate engine clockwise until No. 1 piston is on the compression stroke.

1. With No. 1 piston on compression stroke, align timing pointer with TDC on the crankshaft damper.

1. Align locating boss on rotor with hole on armature. Fully seat rotor on distributor shaft.

1. Rotate distributor shaft so blade on rotor is pointing toward mark on distributor base, that was previously made in Step 2 of the Removal procedure.

1. While installing distributor, continue rotating rotor slightly so leading edge of the vane is centered in vane switch stator assembly.

1. Rotate distributor in block to align leading edge of vane and vane switch stator assembly. Verify rotor is pointing at No. 1 mark on distributor base. If vane and vane switch stator cannot be aligned by rotating distributor in cylinder block, remove distributor enough to just disengage distributor gear from camshaft gear. Rotate rotor enough to engage distributor gear on another tooth of camshaft gear. Repeat Step 1 if necessary.
   

1. Install distributor hold-down clamp and bolt. Tighten bolt, but leave it loose enough to rotate distributor.

1. Install distributor cap, No. 1 spark plug and ignition wires. Check that ignition wires are securely connected to the cap and spark plugs. Tighten distributor cap hold-down screws to 2.0-2.6 Nm (18-23 lb-in).

1. Reconnect distributor to wiring harness.

1. Set initial timing according to procedures found in Section 13A of the Powertrain Control/Emissions Diagnosis Manual .

1. After timing is set, tighten distributor hold-down bolts to 23-34 Nm (17-25 lb-ft).

1. Recheck initial timing. Adjust if necessary.

1 remove the cable from the coil to the distributor.
check this agains earth, when you turn the engine over.

if spark, suspect rotor arm is not setting spark to each spark plug lead.
open distributor and clean the rotor arm with a cloth or wire wool
not sand paper as this will take off too much and cause a problem

2 check inside distributor for moisture. spray inside with WD40 or equiventy water repelent.

3 if not spark at coil open distriutor cap and with ignition on, open and close points in distributor with a screw driver and check coil again against earth again if you get sparh, problem is points not opening and closing.

4 turn over engine with distributor cover removed to see if rotor arm is moving if not then cam drive to distributor is defective. this controls points and rotor arm.

if rotor arm turning and spark at points but no spark at coil suspect Low tension wiring or coil needs replacement.

i hope this was helpful

Spark plugs, spark plug wires, distributor cap, and distributor rotor. If you replace all of these you would be doing what is called a major tune-up.

A regular tune-up would be just replacing the spark plugs.

You can check the integrity of the plug wires and distributor cap by spraying them with water while the engine is running. If the engine runs ruff, stall, or you see spark arcing from either the wires or the distributor cap than they will need to be replaced.

The distributor rotor always gets replaced when you replace the distributor cap.

You can also spray the coil with soapy water to see if it is leaking as well.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Hi:
What they mean is that the rotor should point towards the spot on the distributor cap that the #1 spark plug wire attaches to.

So the basic process is this:

It is easiest to do with all your spark plugs out, but at least remove the #1 spark plug. rotate the engine till the #1 piston is fully up on the compression stroke( TDC or top dead center) and verify the timing mark on your crankshaft pulley is where it should be. Then install the distributor with the rotor pointing to where the #1 spark plug wire hooks up to the cap. This will get you close to the final spot, and that will work for you. Just be carefull not to get it off one tooth on the distributor gear, as you might still think it is close, but the distributor will have to be rotated to the extreme adjustment to get the timing close.

Hope you get it back together!

If you have spark at the coil then you have a good coil. You can't measure Ohm at a spark plug since it is alway open at the gap. But you can OHM measure a spark plug wire at both end. If you have nothing mean your wire is bad. You can swap one more wire to confirm a bad wire. If your wire is not bad then I recommend to replace both rotor and distributor cap. Good luck in locating the problem.

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