Clock Runs Fast After Tire Install
Lexus Champion
Joined: Nov 2014
Posts: 13,614
Likes: 2,918
From: Texas
OK, you guys know the tire thing was a lark, right? I've set it back now for the last few days and it still seems to gain a minute or two per hour. It is over 20 minutes fast by the next morning.
I'm baffled why it would run that fast all of a sudden. The clock in our old 99 Honda kept great time until the day I sold it last summer. You'd think a Lexus clock would be better than a lowly Honda clock.
What's it take to get that vent frame around the clock out? Is it just that one piece? I'll take it out and see what it looks like. Maybe blow it out or run it off my 12v transformer to see what happens.
I'm baffled why it would run that fast all of a sudden. The clock in our old 99 Honda kept great time until the day I sold it last summer. You'd think a Lexus clock would be better than a lowly Honda clock.
What's it take to get that vent frame around the clock out? Is it just that one piece? I'll take it out and see what it looks like. Maybe blow it out or run it off my 12v transformer to see what happens.
Here are pictures of the Lexus clock from a 2013 GS 350.
It appears the clock's related circuitry is in a sealed case mounted directly behind the clock face. I don't know how difficult it may be to get into the case in order to test/repair/replace component(s) if you were so inclined, but it looks like the black part directly behind the clock bezel just unclips which likely gives access to the crystal oscillator and other related circuitry. I seriously doubt there is an adjustment that can be tweaked...
It looks like a new Lexus Clock P/N#83910-30620 (for 2013 & 2014) is $345.00, but discounted it can be bought for around $260. I found a new clock on eBay for $160. I don't know how much a used clock could be bought for from a junk yard...
Last edited by bclexus; Apr 11, 2019 at 01:23 PM.
Thread Starter
Instructor
Joined: Jan 2018
Posts: 1,161
Likes: 408
From: Kentucky
Hmm, won't be spending $160 on a clock.
A controlled experiment was conducted: I rolled it back a full 24 hours and set it correctly. Then checked it afterf 24 hours showed a gain of 30 minutes. That's 1.25 seconds fast per minute. I'm running it back another 24 hours and will measure again to see if it is making any progress in retarding it.
I'm still baffled as to why it worked perfectly for a year and then turned into Speedy Gonzales overnight, doing a minute in 58.75 seconds?
A controlled experiment was conducted: I rolled it back a full 24 hours and set it correctly. Then checked it afterf 24 hours showed a gain of 30 minutes. That's 1.25 seconds fast per minute. I'm running it back another 24 hours and will measure again to see if it is making any progress in retarding it.
I'm still baffled as to why it worked perfectly for a year and then turned into Speedy Gonzales overnight, doing a minute in 58.75 seconds?
Thread Starter
Instructor
Joined: Jan 2018
Posts: 1,161
Likes: 408
From: Kentucky
Two full days of running it back 24 hours and it is still running almost exactly 30 minutes per 24 hours fast.
Oddly, I did lap times for 8 minutes and the average minute on the dial was 59.8 seconds.
When I run it back I hear a strange noise as the minute hand makes it backwards motion.
I'm going to setup a time lapse shot of it overnight to be sure that it isn't doing something odd.
Oddly, I did lap times for 8 minutes and the average minute on the dial was 59.8 seconds.
When I run it back I hear a strange noise as the minute hand makes it backwards motion.
I'm going to setup a time lapse shot of it overnight to be sure that it isn't doing something odd.
Thread Starter
Instructor
Joined: Jan 2018
Posts: 1,161
Likes: 408
From: Kentucky
The reference lap timer is my phone. It is pretty accurate.
I know the tires have nothing to do with it but I had tires put on that Friday morning. The following Saturday morning it was 30 minutes fast. Not related but knowing it is 30 minutes off per day tells me it started the day i dropped it off for tires. It was tongue in cheek humor to start but apparently nobody really gets humor here. It would be like waxing the front bumper caused the rear axle to leak. Other than being on the same car, they are unrelated and only coincidentally happened at the same time.
Now, have I made it clear it was a joke and not a serious question about how tires affect the clock?
Last edited by Knucklebus; Apr 15, 2019 at 03:02 PM. Reason: Found Evidence of Bigger Problem
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Lexus Test Driver
Joined: Mar 2013
Posts: 5,471
Likes: 958
From: IL
Did you see this old post that just reappeared yesterday? https://www.clublexus.com/forums/gs-...-too-fast.html
Thread Starter
Instructor
Joined: Jan 2018
Posts: 1,161
Likes: 408
From: Kentucky
Did you see this old post that just reappeared yesterday? https://www.clublexus.com/forums/gs-...-too-fast.html
Lexus Test Driver
Joined: Aug 2003
Posts: 7,654
Likes: 1,407
From: Florida
TSBs don't apply if you are out of the warranty period, unless specifically stated in the TSB.
Thread Starter
Instructor
Joined: Jan 2018
Posts: 1,161
Likes: 408
From: Kentucky
I'll just stick this over it.
Lexus Test Driver
Joined: Aug 2003
Posts: 7,654
Likes: 1,407
From: Florida
And nobody to date has produced a TSB number to reference.
I'll just stick this over it.
https://www.amazon.com/Dashboard-Cla...NAS17B1K4&th=1
I'll just stick this over it.
https://www.amazon.com/Dashboard-Cla...NAS17B1K4&th=1
I'd replace with OEM otherwise it will look cheap or out of place. The negative reviews talk about worse issues than your clock. Also you would have tho take the clock apart to adjust the time for daylight saving.
Thread Starter
Instructor
Joined: Jan 2018
Posts: 1,161
Likes: 408
From: Kentucky
I can take it apart twice a year for $200.