How-To Replace Engine Starter Motor Brush leads – Nissan/Hitachi. Part 7/8

How-To Replace Engine Starter Motor Brush leads – Nissan/Hitachi. Part 7/8


so here you will notice I have the back of the starter motor release and we can look inside the cover and we can see the brushes are basically not able to make a pressure contact with its terminal so it’s time for us to replace the brushes and the starter will continue to operate as it normally would so here I have the brush terminal connector remove from the starter motor backing cover and I just want to slip this clip right here I just want to get this out of the way so we can remove this cover for a visual inspection of the brushes and we can see how the spring is fully extended on all of them and that is a sign that the brushes are worn out and the spring is not providing adequate pressure to contact the armature terminals since I’m in the process of replacing the brush communicator and you can see all the springs how they’re fully extended and there is no more brush to make contact with the armature itself that will be right here so since we’re going to be replacing this brush communicator we want to make sure we inspect the armature contact service make sure we clean out all in between the lines and this surface here should be absolutely smooth you should feel no friction or groove inside its surface you’re also going to want to rebuild the starter like I did here we greased it and clean up the internal and you could go to this video here to see how to rebuild a complete starter and install its new brushes here is a distributor for the new brush communicator that we’re going to install into the starter so when we look at the new brush communicator we can see it has a different brush and compared to the old one that will replace the old one is more of a black composite and the new one is more of a copper material so in order for us to prepare this brush communicator for installation we’re going to have to use this 7/8 socket and we’re basically going to have to just place it in here like this once I have the socket fitted inside the brush communicator I will now take this same socket you must pay attention to the installation and notice these two little clips have to face the back because this is where the bolt is going to attach the brush communicator to the motor rear cover and this part is going to get placed simply against the armature and we will push on the armature to fit the brush communicator perfectly to the armature communicator you see you could use a pig to set the brushes onto the armature but this will most likely damage the brushes so this is another way for installing a brush communicator using this 7/8 socket so now we must position our brush communicator so the wire the positive terminal wire seat inside the motor case groove we will take the motor cover and you can see this is the old cardboard from our previous installation I’ve also paint the cover inside and out to prevent future rust and we have apply new grease to the and we have apply new grease to the bushing bearing so let’s place the cover with this notch aligning to the wire terminal so I will attach my clamping booth this both clamps the back cover the coil field against the starter housing planetary casing we are complete with the installation now we’re going to go and install the starter into the vehicle and continue driving but we must repair a crankshaft rare main oil seal to prevent this excessive worn to the brushes inside the starter when the oil leak past that seal from the crankshaft and enter into the transmission bell housing it will enter inside the starter from this Bendix gear and eventually it will end inside the electric portion of the motor even though the motor has a drainage for that on the bottom the oil will then saturate these brushes and wore out much quicker than they normally would so let’s go and install the starter once the brush communicator has been completely installed and the rear cover is attached we want to pay attention to how we install our motor solenoid we must make sure our terminal is positioned correctly so we want solenoid cable to be at 3 o’clock our battery cable to be at 12 o’clock and the motor terminal to be at 6 o’clock we must not forget this position now let’s go ahead and install the starter into the vehicle and perform a few tip the refurbished starter and if it continued to persist with the same action demonstrating the same song we will then have to replace the electric portion of the starter motor sometimes the coil field inside the armature and the magnet which is stuck to the outside casing cage will become weak in its static ability and this will cause a weak motor so so we will then proceed and replace this electric portion if the starter continued to give us a fail condition after checking all terminal connection and battery voltage let’s now take a look at installing the starter and the only way to pass it up is to pass this wire up first then we will hold the starter at this angle making sure that we do not damage the solenoid wire so we want to make sure that the starter is seated perfectly to the transmission case it will sometime hang on to the axle but that’s okay once we’re ready to install the bolt we will hold this side of the starter with our hand and turn and twist it to make sure we can align the bolt with the starter holes the starter anchoring bolt will be replaced the same way they will remove with the same tool you must also check the connection at the starter solenoid and as we can see we have our connection made but we have changed the position of the starter solenoid during installation as we can see the two bolts should be on the opposite side and this terminal should be on the bottom of the solenoid so we will have to relocate the solenoid so this solenoid wire is on the bottom and the two terminals is on the opposite side we cannot leave this connection like this because these two terminals are too close together and could most likely short-circuit it also if the motor mount is to become broken when the engine should tilt to the right side of the engine bay it will most likely come in contact with the frame and the solenoid wire we want to pay attention to how we install our motor solenoid we must make sure our terminal is positioned correctly so we want solenoid cable to be a three o’clock our battery cable to be a 12 o’clock and the motor terminal to be at 6 o’clock we must not forget this position now let’s go ahead and install the starter into the vehicle and perform a few tests start the starter solenoid can now be a reattach and plug together it is very important that that solenoid wire is kept away from the exhaust manifold and reposition itself between the engine mount bracket and the engine block once we are finished installing the solenoid harness and attach its plug to the main harness with the zip tie we will then reattach our splash guard the splash guard is very important because it prevents water from splashing up inside the engine bay and getting in contact with the exhaust manifold this procedure is easier done with the wheel remove the torque wrench must be removed from the crankshaft harmonic balancer and we will reattach our positive cable for the battery terminal

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