Antenna Mast Replacement
Pole Position
Joined: Dec 2009
Posts: 3,135
Likes: 276
From: CA - San Diego
Welcome to the forum. Gman is correct there are several threads on this subject and even a TSB ... https://www.clublexus.com/forums/att...of-antenna.pdf
Speaking for myself, I prefer OEM parts but others have found aftermarket masts that work great. Hope the TSB above helps to get the repair done.
Speaking for myself, I prefer OEM parts but others have found aftermarket masts that work great. Hope the TSB above helps to get the repair done.
Driver School Candidate
Joined: Oct 2019
Posts: 23
Likes: 2
From: MS
I just replaced the mast on my 02 SC430 just this morning. .A straight forward job. Found a youtube video comes in three parts. Guy is actually replacing mast on a 02 SC430. I bought a replacement mast off amazon and it worked perfectly.
Make sure you get the rubber gromment on the correct side of the retaining nut before you run the new cable into the motor.
Good luck.
Make sure you get the rubber gromment on the correct side of the retaining nut before you run the new cable into the motor.
Good luck.
Pit Crew
Joined: Jun 2017
Posts: 143
Likes: 19
From: Michigan
Racer
Joined: Aug 2019
Posts: 1,757
Likes: 355
From: CA
And don't get fooled if your mast goes all the way up and then retracts one section. It is ONLY fully extended in AM. In FM, it extends completely and then retracts a section. Don't ask me how I know! LOL.
Paul
Paul
Thread Starter
Driver School Candidate
Joined: Dec 2019
Posts: 24
Likes: 2
From: Texas
I just replaced the mast on my 02 SC430 just this morning. .A straight forward job. Found a youtube video comes in three parts. Guy is actually replacing mast on a 02 SC430. I bought a replacement mast off amazon and it worked perfectly.
Make sure you get the rubber gromment on the correct side of the retaining nut before you run the new cable into the motor.
Good luck.
Make sure you get the rubber gromment on the correct side of the retaining nut before you run the new cable into the motor.
Good luck.
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Thread Starter
Driver School Candidate
Joined: Dec 2019
Posts: 24
Likes: 2
From: Texas
Racer
Joined: Aug 2019
Posts: 1,757
Likes: 355
From: CA
LOL. Well, you know how I was so happy a couple of months ago to find an antenna in the junkyard? 😁
The story starts before I found CL. I bought a mast replacement and found some instructions on another website that told me how to hyper extend the mast to remove it. But unfortunately (of course) the mast cable was broken inside the motor assembly. Back to the University of YouTube I go.
Found a video that showed everything you need to do to open the case of the antenna drive motor and remove the rest of the cable. All went pretty well...
Then I fed the new mast down and the motor didn't stop when the mast was fully retracted. It just kept running and grinding on and on for what seemed like forever.
So, I took it apart again.
Put it back together again. Fed the new mast down the mast tube again. Then it went all the way down and then back up halfway and stopped.
so I took it apart again. (See where this is going now dont you. 😉 )
So now Im just baffled as to what could be causing this? 🤔
And I decided that it might be a good idea to check out the motor. LMAO! IT WASN'T!
The motor and brushes are not held together as a single unit like I thought it would be. So, when I pulled on the motor, the brushes popped out. Doh!
Using a microscope, cussing and staring in amazement at Toyota Engineering, I put it back together. Plugged it back in, fed in the mast, it went up all the way and then retracted one section.
so I took it apart again...
Then a wire to one of the brushes broke. And I was so pissed at that point, I threw it in the trash. Not realizing how expensive it was going to be to replace.
If I would have only known about this site before I started. 😉 Happy Holidays to Everyone.
Paul
The story starts before I found CL. I bought a mast replacement and found some instructions on another website that told me how to hyper extend the mast to remove it. But unfortunately (of course) the mast cable was broken inside the motor assembly. Back to the University of YouTube I go.
Found a video that showed everything you need to do to open the case of the antenna drive motor and remove the rest of the cable. All went pretty well...
Then I fed the new mast down and the motor didn't stop when the mast was fully retracted. It just kept running and grinding on and on for what seemed like forever.
So, I took it apart again.
Put it back together again. Fed the new mast down the mast tube again. Then it went all the way down and then back up halfway and stopped.
so I took it apart again. (See where this is going now dont you. 😉 )
So now Im just baffled as to what could be causing this? 🤔
And I decided that it might be a good idea to check out the motor. LMAO! IT WASN'T!
The motor and brushes are not held together as a single unit like I thought it would be. So, when I pulled on the motor, the brushes popped out. Doh!
Using a microscope, cussing and staring in amazement at Toyota Engineering, I put it back together. Plugged it back in, fed in the mast, it went up all the way and then retracted one section.
so I took it apart again...
Then a wire to one of the brushes broke. And I was so pissed at that point, I threw it in the trash. Not realizing how expensive it was going to be to replace.
If I would have only known about this site before I started. 😉 Happy Holidays to Everyone.
Paul
Thread Starter
Driver School Candidate
Joined: Dec 2019
Posts: 24
Likes: 2
From: Texas
LOL. Well, you know how I was so happy a couple of months ago to find an antenna in the junkyard? 😁
The story starts before I found CL. I bought a mast replacement and found some instructions on another website that told me how to hyper extend the mast to remove it. But unfortunately (of course) the mast cable was broken inside the motor assembly. Back to the University of YouTube I go.
Found a video that showed everything you need to do to open the case of the antenna drive motor and remove the rest of the cable. All went pretty well...
Then I fed the new mast down and the motor didn't stop when the mast was fully retracted. It just kept running and grinding on and on for what seemed like forever.
So, I took it apart again.
Put it back together again. Fed the new mast down the mast tube again. Then it went all the way down and then back up halfway and stopped.
so I took it apart again. (See where this is going now dont you. 😉 )
So now Im just baffled as to what could be causing this? 🤔
And I decided that it might be a good idea to check out the motor. LMAO! IT WASN'T!
The motor and brushes are not held together as a single unit like I thought it would be. So, when I pulled on the motor, the brushes popped out. Doh!
Using a microscope, cussing and staring in amazement at Toyota Engineering, I put it back together. Plugged it back in, fed in the mast, it went up all the way and then retracted one section.
so I took it apart again...
Then a wire to one of the brushes broke. And I was so pissed at that point, I threw it in the trash. Not realizing how expensive it was going to be to replace.
If I would have only known about this site before I started. 😉 Happy Holidays to Everyone.
Paul
The story starts before I found CL. I bought a mast replacement and found some instructions on another website that told me how to hyper extend the mast to remove it. But unfortunately (of course) the mast cable was broken inside the motor assembly. Back to the University of YouTube I go.
Found a video that showed everything you need to do to open the case of the antenna drive motor and remove the rest of the cable. All went pretty well...
Then I fed the new mast down and the motor didn't stop when the mast was fully retracted. It just kept running and grinding on and on for what seemed like forever.
So, I took it apart again.
Put it back together again. Fed the new mast down the mast tube again. Then it went all the way down and then back up halfway and stopped.
so I took it apart again. (See where this is going now dont you. 😉 )
So now Im just baffled as to what could be causing this? 🤔
And I decided that it might be a good idea to check out the motor. LMAO! IT WASN'T!
The motor and brushes are not held together as a single unit like I thought it would be. So, when I pulled on the motor, the brushes popped out. Doh!
Using a microscope, cussing and staring in amazement at Toyota Engineering, I put it back together. Plugged it back in, fed in the mast, it went up all the way and then retracted one section.
so I took it apart again...
Then a wire to one of the brushes broke. And I was so pissed at that point, I threw it in the trash. Not realizing how expensive it was going to be to replace.
If I would have only known about this site before I started. 😉 Happy Holidays to Everyone.
Paul
Instructor
Joined: Sep 2003
Posts: 1,237
Likes: 91
From: Canada
Racer
Joined: Aug 2019
Posts: 1,757
Likes: 355
From: CA
Paul
Rookie
Joined: Mar 2020
Posts: 36
Likes: 13
From: KY
Can anyone be more exact on the socket size that is used for the antenna mast nut? There are several sizes of these nut sockets available so I want to get the right one.
I'm not feeling particularly warm and fuzzy about taking a screwdriver and trying to tap the nut - slipping off could cost me a LOT more in paint than the $25 socket, assuming I get the right size.
I'm not feeling particularly warm and fuzzy about taking a screwdriver and trying to tap the nut - slipping off could cost me a LOT more in paint than the $25 socket, assuming I get the right size.