atowen
Member
Hey all, figured I'd give a write up on how to remove an alternator from a Mitsubishi Challenger 6g72 Motor!
After playing out in a very sloppy Neerim some sad noises began sounding like a bearing or pulley which was tracked down to the alternator.
So with that in mind the job is fairly easy with only a few drinks, 10, 12 and 14mm socket and a screwdriver needed.
* Remove the air box to give a bit of room.
* Remove the bottom bash plate and the bottom radiator cowling (if its still there!)
* Undo the top radiator hose by loosening the clamp (your going to loose some coolant here!) and remove the entire radiator cowling. The radiator cowling is held on by 4 bolts with 1 bolt on each end. The top two are easy with the bottom two requiring some fun hand positions and the 10mm socket.
* With the cowling off you can now undo the fan blades. This is held on by 4 bolts!
Now to the belts, before going any further take a few pics and drawings of how the 3 belts are aligned!!
* To remove the alternator you only have to loosen the first two belts which is done by loosening the following tensioners (loosen nut on the front of the tensioner first then the 2nd bolt)
1st Belt
2nd Belt Tensioner from underneath
* With this done you should be at the alternator; this is held on by a top bolt in the center and a bolt to the bottom right. Also there is nut on the rear to remove. With these removed gently pull the alternator down. There is a plug on the back that needs to be pulled out which can be achieved by slightly rotating the alternator until you can reach!
* Now drop the alternator off at your friendly auto elec and wait till its fixed
Work in reverse and put it back together ensuring the belts have the correct tension!
* Now bleed your radiator by removing the crappy engine cover and loosening the bleed screw that is just along the top radiator pipe (the one with the warning label under it!) with the engine running you will see air bubbles come up. When this stops put re screw!
Turned out the grease in the front bearing of the alternator had gone off and was beginning to disintegrate and the brushes needed some attention!
After playing out in a very sloppy Neerim some sad noises began sounding like a bearing or pulley which was tracked down to the alternator.
So with that in mind the job is fairly easy with only a few drinks, 10, 12 and 14mm socket and a screwdriver needed.
* Remove the air box to give a bit of room.
* Remove the bottom bash plate and the bottom radiator cowling (if its still there!)
* Undo the top radiator hose by loosening the clamp (your going to loose some coolant here!) and remove the entire radiator cowling. The radiator cowling is held on by 4 bolts with 1 bolt on each end. The top two are easy with the bottom two requiring some fun hand positions and the 10mm socket.
* With the cowling off you can now undo the fan blades. This is held on by 4 bolts!
Now to the belts, before going any further take a few pics and drawings of how the 3 belts are aligned!!
* To remove the alternator you only have to loosen the first two belts which is done by loosening the following tensioners (loosen nut on the front of the tensioner first then the 2nd bolt)
1st Belt
2nd Belt Tensioner from underneath
* With this done you should be at the alternator; this is held on by a top bolt in the center and a bolt to the bottom right. Also there is nut on the rear to remove. With these removed gently pull the alternator down. There is a plug on the back that needs to be pulled out which can be achieved by slightly rotating the alternator until you can reach!
* Now drop the alternator off at your friendly auto elec and wait till its fixed
Work in reverse and put it back together ensuring the belts have the correct tension!
* Now bleed your radiator by removing the crappy engine cover and loosening the bleed screw that is just along the top radiator pipe (the one with the warning label under it!) with the engine running you will see air bubbles come up. When this stops put re screw!
Turned out the grease in the front bearing of the alternator had gone off and was beginning to disintegrate
and the brushes needed some attention!
