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The following is presented to present you how to protect against mistakes and gain a little confidence in the process, whether you are replacing the distributor in an old engine or reassembling a brand-new one. Mental at every times that both valves ~ above the "master" cylinder (usually #1 cylinder) should be closed, an interpretation the piston is at height Dead Center.Step 1 - Crank The EngineBefore act anything v the distributor, crank the engine to optimal Dead Center, so that the timing note on the crank sheave is at the TDC or 0 note on the timing reference. This is much easier said 보다 done, however, since the crankshaft transforms at twice the speed of the camshaft. Therefore, not just do you should line increase the time marks, but you have to make sure the piston in #1 cylinder is in ~ the peak of the compression stroke.
Timing clues on Mustang 6
Tip: Engines are usually dirty up front, so once you find the timing marks repaint them v a little correction fluid (White-Out, fluid Paper, etc.). They stand out beautifully under the time light"s pulses.So just how do you carry out this there is no exposing the valves? Carefully, an extremely carefully. The course, if the engine has been running perfectly prior to removal the the distributor, simply crank the engine until the rotor present up v the position on the distributor cap whereby #1 spark plug wire is located. However, if your engine is to run poorly — or no at every — friend can"t make the assumption that the distributor is properly positioned.The best way to understand you space at TDC is come look in ~ the valves, so if you"re to plan on replacing valve covering gaskets go ahead and take the covering off. If you aren"t skinny to do so you might try a small mirror (dental mirrors occupational well) that deserve to be placed in the oil fill hole in the valve cover. If you"re happy - and also the hole is close to the #1 valves - friend will have the ability to observe the valves together you crank the engine.If no one of the over is practical, take out the spark plug top top #1 cylinder and also put your finger strict in the hole. Gradually crank the engine, utilizing a far switch or someone else using the key, but just a tiny "tick" in ~ a time. You space feeling because that a vacuum or pressure. Here"s wherein it it s okay a small tricky. If friend feel push the piston is either coming up from the bottom of the intake punch or comes up native the bottom that the strength stroke. Because you don"t recognize which, girlfriend are looking for vacuum. As soon as you feeling vacuum, the piston is pulling in mixture to compress, and also therefore the next pressure you feeling is the of the compression stroke. Keep ticking the starter till the time marks heat up and you will nearly certainly be at TDC unless you"ve made some gross error that judgment.Worst situation scenario: If girlfriend can"t be sure of TDC no issue how difficult you try, simply crank the engine to the timing marks and also install the distributor as below. You stand a 50% possibility of it being right. If the engine won"t begin or backfires with the carburetor, install the distributor 180 levels from wherein it is and also you"ll be in the round park.Now go To The DistributorAssuming you are replacing the distributor, take the end the hold-down clamp that keeps it in place. Few of these are difficult to see, yet locate it and remove the clamp and hardware. There"s no reason to mark the old distributor since it won"t be going ago in.Now compare the brand-new (or rebuilt) distributor with the old one. Space they identical? space the total shaft lengths equal? perform both have actually the same variety of gear teeth? If not, you must make sure the brand-new distributor will certainly fit, even though it can not look specifically the same. Next, go the new one have a vacuum advancement mechanism or do you need to use your old one? If you need the old one make certain it"s working by sucking top top the vacuum fitting.
Setting the suggest gap. Note the points" wiper is ~ above the pointer of the distributor cam.
Stop now and collection the allude gap! while the distributor is out and easy to occupational around, put it ~ above the bench or in a vise and set the allude gap come the exactly specification. This will certainly make obtaining the vehicle running much, much easier. We will still put a dwell meter on it when it"s running, yet this will get us going.Mark the body of the new distributor at the allude where the rotor will be beside #1 cylinder"s spark plug wire. Once that is done, place the distributor right into the engine hole and gently reduced it until the shaft engages the camshaft gear. Because the 2 gears mesh in a rotational manner, you need to guess wherein to place the rotor"s column as you lower the distributor so the it will certainly rotate into the exactly position as soon as the unit is in place. Also, most shafts attach at the bottom to the oil pump drive, and you might find your rotor won"t communicate it properly and still rotate to the right position.If you should rotate the oil pump journey shaft, you deserve to usually carry out so with a screwdriver (for slotted types) or a 1/4 inch long socket (for hex types). You"ll should experiment v the quantity of rotation until everything matches up, therefore don"t gain impatient. This is no time come say "close enough."Once the new distributor is in, replace the hold-down clamp and also snug up the it is registered hardware, leaving just sufficient play to enable rotation the the distributor for timing. Let"s operation The EngineWith the distributor in place and also the rotor pointing to #1, placed on the cap and also plug wires, acquisition time to place each one follow to firing order. Don"t assume they are correct uneven the engine has actually been running fine formerly (but if the was, why room you instead of the distributor?) leaving off the vacuum breakthrough hose, yet plug it increase to stop vacuum leaks when running. Double-check everything and also remove loose tools from the engine wait cleaner (yeah, we placed them over there too!).
Dwell meter hookup - always connect come points side of coil and also ground, and also don"t forget to set the meter for proper variety of cylinders.
Start the engine. It must run, although no perfectly, since it is collection to fire at TDC. Placed a dwell meter on the coil connections and measure for proper range. If it demands to be adjusted, perform so currently before setup timing. Remember, two degrees of dwell equates to one degree of timing.
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Okay, now hook up the time light and get that pointed to the timing marks. Rotate the distributor to obtain the correct advance setting, then revolve off the engine and also tighten the hold-down clamp. Change the vacuum development hose.Now get the engine running again and also note any type of misses or firing problems. Assuming there are none, currently you can adjust engine idle mixture and also speeds on the carburetor. If you changed the carburetor prior to doing the ignition work-related it will certainly most most likely be off. Never readjust anything till the ignition is correctly collection up. Otherwise you will be "chasing the problem" and never record it.
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