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Re: need to know how to change the alternator properly
There are three bolts: tensioner bolt on bottom two bolts on top and they are tough; three wires: ground, power, and harness.
Disconnect negative battery cable, remove all wires from alternator, remove drive belt. Locate all bolts: remove tensioner bolt and mounting bolts, then remove alternator from below. It comes off easier than it goes back on. Install is reverse order of removal. be sure to label wires for easier replacement.
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First of all you need to confirm the case of the alternator before it is replaced and I hope that the output voltage from the alternator was checked. However if voltage is present the fault can be with the rectifier/regulator. Now the alternator is clamped on to the enigne side with the pulley threading in line with the main belt. You need to have box spanners to remove the side clamps holding the alternator so as to loosen the unit . While refitting the tension of the belt is most important as you need help to keep it tight while the bolts are fastened . If a new alternator is not purchased then it will be best to have it done at the dealership as the cost of part will include the replacement.So check for estimate before you remove the unit.
I've had those machines says alternators are good when they really weren't; first try starting the car and disconnect the positive battery cable while it is running, don't touch the cable to anything, just hold it in the air... if the car stalls then the alternator is no good. "only do this for a few seconds, no more than 10 seconds"
The first thing you need to do is check for voltage at the back of the alternator. There is a big wire that bolts to the back of it and it should have battery voltage to it at all times. Check that wire for voltage, if it has voltage then I can help you go deeper to see what needs to be done. The voltage regulator is inside the alternator. Keep in mind that, on alternator replacement, the wires are not replaced with the alternator and could have a short.
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You need to have the water pump replaced-while that is being done, replace the thermostat, and have the cooling system flushed. That should cure your overheating problem. A Tune Up involves a new distributor cap, rotor, plugs and plug wires-goo idea to have the throttle body cleaned when this is done, new air filter and maybe an oil change/filter and a new fuel filter. While this will cost a decent amount (about $300 to $400), if the car is in reasonably good condition, it will give you another 50,000+ miles before it will need much else besides oil changes. The most important thing, though, is to get the overheating under control-if you overheat the engine, it might be fatal to the car period.
Its likely the tenisinor was the cause of the alternator problem in the first place its a big ware part leeding cause of belt failure water pump alternator power steering and ac compressers . You would be wise to replace it 96 likely has never been done .And its far cheaper then all of the above parts 20 to 30 dollars
sorry to hear that, you really need to use the right part,the internal regulator are different some times even splitting years, Hope no damage was done ,put proper part on as soon as possible ,Hope this was helpful please let us know. feel free to ask again should you need any further assistance Thank You. Best wishes.
I don't know how much maintenace you have done in the past. Besides the normal inspections of the brakes, fluid levels and oil changes they do recomend changing the spark plugs and the axle fluid at 30,000 miles and adjusting your parking brake cable. hope this helps....
Since your friend just replaced the timing belt, there wouldn't be a need to replace the oil pump O-ring and crankshaft seal unless they were leaking.
No, you cannot get to the oil pump unless the crankshaft, lower timing belt cover and belt are removed.
I have the same exact car with the same engine and just replaced the oil pump O-ring and crankshaft seal. I'm a good mechanic, but this is a tedious and time consuming job, but It can be done if you have good mechanic skills.
There is a big chance that the car's engine timing will be off, have
someone who is knowledgeable to set the engine timing. If you don't and
try to start the car, serious engine damage will probably occur.
When you get the oil pump off removed all the old O-ring the new oil
ring will not stay in place, I used petroleum jelly to keep the ring in
place, it's perfectly safe and won't affect the operation of the oil
If your not sure you can do the repair yourself, take it to a mechanic.
It is very important that you know exactly what you are doing when you replace a drive-belt pulley! It is possible that if you get the timing wrong that your engine will fail! The alternator can be replaced with little knowledge but if your car starts and runs then there is no problem with the alternator nor the timing. If your belt looks worn down or has fray marks on it then i would suggest to change it. Also, unless the tensioner is cracked or broken there is no need to replace that.
It should be either just above the air conditioning compressor, or on the opposite side. It will have two wires coming out - a red wire ( 12 volt plus) and a black ground wire. The a/c compressor has metal fittings and rubber hoses as well as a clutch. No need to touch the a/c compressor.
I changed alternators on my 300D models and 300 SD. They are very much the same.
You will need to loosen the adjustment slider and physically slide the alternator to loosen the belt. Remove the wires from the alternator - probably a plug at the rear. If the car has a single serpentine belt the problem is more complex because so many units run off the same belt, including the water pump, fan and a/c compressor. Restoring proper tension is critical.
The alternator swings in a vertical arc on a long bolt on the bottom or side that runs from front to rear.
Replacement is not difficult - hold the new unit in place while you insert and tighten the long bolt, then reposition the tension slider and tighten that bolt. The tension needs to be correct or else the belt will slip and squeal and your battery will not charge properly.
You may need a crowbar the achieve the right tension while you tighten the tension slide.
Instead of replacing the alternator altogether, why not just replace the brush on a round plate at the rear. Most alternator failures involve worn brushes. The rebuilders simply replace them and sell a "rebuilt" unit.
Make sure you can get brushes and/or a brush assembly before you start.. Loosen the tension but do not remove the alternator. Remove the two small nuts that hold the brush assembly at the rear and slide it off. Replace with the new one.
Be sure you retract the brushes so they will slip back over the armature, and align with the retaining screws. Tighten them. Re-tension the belt and you're home free. I have done this on the road when necessary.
Easier and cheaper than changing the entire alternator.