Shift Knob Removal...repercussions?

RafPR · 12-02-2013, 09:53 PM

Quote:

Originally Posted by the_student

Okay, so I had my old 2009 370Z and switched out the shift knob without any problems. As you know you should grip the base as well as the knob itself to take it off. That Z is gone...RIP. Not my fault nor was I even in the car when it happened.

Anyway, yesterday I got a new Z, basically the same exact type. So I got a Nismo Shift knob and thought I would take off the stock one again. I thought it wouldnt be that hard. Boy was I wrong, it was way harder than last time. I had a piece of thick rubber around the bottom shaft with strong pliers holding it. As I was turning the shift knob taking it off, it actually was spinning and I had thought that it had gotten loose. And so I turned it a couple of full revolutions thinking that it would loosen up more. I was wondering what was happening but the bottom shaft actually spun with the knob and the knob wasnt really gettting loose. I was very scared that I just effed up my transmission, So I turned on my car and shifted it through all the gears while driving it to see what I had done. Surprisingly, nothing seems to be broken....Thank God. Anyway I just held the bottom shaft on the bare metal and taking off the knob was a lot better.

I was just wondering about things I should look for or feel while driving that would tell me something is wrong with my tranny? So far it feels normal while shifting and engaging gears while semi pushing it. I hope I dont pay for it later on.

You never had an issue after the shifter shaft spun????? It happened to me today, while I was readjusting my Tommy Kaira and put some loctite to aligned it.... It just end up 1/8" higher than when i first installed it, and ths shaft spun few turns... I am afraid I damage something.... I did as you, and drive the car and shift, and everything seems normal....

Let me know how everything has being after your shifter shaft spun...

Thanks.

1slow370 · 12-02-2013, 10:21 PM

the shaft spun a few turns? yeah you might have an issue considering it is bolted to linkage on the bottom and shouldn't be able to spin at all. Either you broke something or it didn't really spin, if you unbolted the linkage first then yeah it would spin but it wouldn't harm anything.

Edit: I would say it is more likely if it indeed did spin then you are more likely to have weakend the actual shifter itself and not the transmission if it still drives fine. it looks like the factory shifter is made from two pieces that are pressed and welded together maybe so you may have spun the top part of it and possible broken the spot welds, but even then i don't know if you are going to see any real problems with it.

RafPR · 12-03-2013, 04:08 AM

It still very very tight.... Maybe I should buy a new shifter and replace the oem....

I hope I didn't damage anything.

edub370 · 12-03-2013, 12:18 PM

and this is why i sold my stock shift knob for $50 lol

Leingod · 12-09-2020, 06:46 PM

I am not making another post on how to remove the damn shift knob when it's been glue Don by Satan. Gaf tape, electrical tape, and a pipe wrench. That's all I'll say.

ZoomZ · 12-09-2020, 07:38 PM

It's not your transmission that you could destroy but the shift linkage itself. Check for excessive play.

Anyway, on the removal. Apply heat to shaft and bottom of knob. Also use duct tape and rags to protect shaft and old knob.

Horizon · 12-16-2020, 11:12 AM

Quote:

Originally Posted by ZoomZ

It's not your transmission that you could destroy but the shift linkage itself. Check for excessive play.

Anyway, on the removal. Apply heat to shaft and bottom of knob. Also use duct tape and rags to protect shaft and old knob.

How would I check for play? I think I may have messed up my shift linkage myself. I attempted to remove my shift knob the other day by using a strap wrench on the knob itself, and a vice grip on the bottom section. In the end, I was unable to get the knob off or even twist it 5°. Subsequently, a few days later I began to hear a sort of grinding noise, which I could not figure out. I did some research and came to the conclusion that it must be the throw out bearing, but the noise didn’t completely go away when I pushed the clutch in, so I am now assuming that I messed up the shift linkage. It is a very strange noise, sometimes it gets quieter when I push the clutch in, and other times it doesn’t. The main reason that I think it is the linkage is because one time when the noise was happening, it went away when I put my hand on the shift knob. I will link below the videos of the noise that are on my YouTube channel. Noise is much more noticeable in the second video.
Video 1: https://youtu.be/XjylfhlVKdc
Video 2: https://youtu.be/sASp5IAAIYQ

ZoomZ · 12-16-2020, 01:52 PM

I think any noise generated in driveline will be transmitted and felt in shift knob. You may not have wrecked anything, you just hearing things now that your senses are heightened.

If you take boot off, you can wobble the shaft and see if there is excessive play. If there was, you'd already see it under normal vibration.

TM (2020 x 1914).jpg

Horizon · 02-03-2021, 03:54 PM

Quote:

Originally Posted by ZoomZ

I think any noise generated in driveline will be transmitted and felt in shift knob. You may not have wrecked anything, you just hearing things now that your senses are heightened.

If you take boot off, you can wobble the shaft and see if there is excessive play. If there was, you'd already see it under normal vibration.

Attachment 145772

Maybe you're right. In that diagram, would I be wiggling the top of #10? Also, are you talking about the leather boot that you see while driving, or the rubber boot seen in the diagram as #6?

Sorry about the late response, I don't know how to enable notifications for when someone responds to me.

ZoomZ · 02-08-2021, 07:57 PM

Quote:

Originally Posted by Horizon

Maybe you're right. In that diagram, would I be wiggling the top of #10? Also, are you talking about the leather boot that you see while driving, or the rubber boot seen in the diagram as #6?

Sorry about the late response, I don't know how to enable notifications for when someone responds to me.

The point of contact between #10 and #13. Not sure if you can see that from top or you have to access from under car.

If you wanted to see if it is accessible from top, you would have to remove all the boot covers. The leather and #6.

Anyway, my point is that the twisting motion required to remove the original shift knob, would be transmitted into the shaft #10. Anything attached in line to that, would be vulnerable to the force applied.

If you are feeling something, I would start there.

zz

12-02-2013, 10:21 PM	#2 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7251	the shaft spun a few turns? yeah you might have an issue considering it is bolted to linkage on the bottom and shouldn't be able to spin at all. Either you broke something or it didn't really spin, if you unbolted the linkage first then yeah it would spin but it wouldn't harm anything. Edit: I would say it is more likely if it indeed did spin then you are more likely to have weakend the actual shifter itself and not the transmission if it still drives fine. it looks like the factory shifter is made from two pieces that are pressed and welded together maybe so you may have spun the top part of it and possible broken the spot welds, but even then i don't know if you are going to see any real problems with it. __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50 Last edited by 1slow370; 12-02-2013 at 10:32 PM.

12-03-2013, 04:08 AM	#3 (permalink)
RafPR Base Member Join Date: Aug 2013 Location: Puerto Rico Posts: 86 Drives: '13 370Z GM SP M6 Rep Power: 12	It still very very tight.... Maybe I should buy a new shifter and replace the oem.... I hope I didn't damage anything. __________________ '13 370Z Gun Metallic Sport Package MT

12-03-2013, 12:18 PM	#4 (permalink)
edub370 A True Z Fanatic Join Date: May 2011 Location: KCMO Posts: 3,458 Drives: 09 370z S/T 6MT Rep Power: 20	and this is why i sold my stock shift knob for $50 lol __________________ 09 370Z ST 6MT//Injen CAI//Greddy CBE//TP//TSW's//Swifts//Stillen lip//Whiteline sways 326whp/268tq

12-09-2020, 06:46 PM	#5 (permalink)
Leingod A True Z Fanatic Join Date: Mar 2015 Location: Some Place Cold Posts: 16,060 Drives: In Circles Rep Power: 2684397	I am not making another post on how to remove the damn shift knob when it's been glue Don by Satan. Gaf tape, electrical tape, and a pipe wrench. That's all I'll say. JARblue, Rusty, Optimiser and 2 others like this. __________________ I AM FLOOF! SOMEBODY FLOOF MY HORN!! ALL HAIL THE FLOOF!!I JUST FLOOFED ON THE FLOOR

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12-09-2020, 07:38 PM	#6 (permalink)
ZoomZ Track Member Join Date: Jan 2017 Location: Vancouver, BC Posts: 779 Drives: 17' 370Z Nismo Rep Power: 40618	It's not your transmission that you could destroy but the shift linkage itself. Check for excessive play. Anyway, on the removal. Apply heat to shaft and bottom of knob. Also use duct tape and rags to protect shaft and old knob.

12-16-2020, 01:52 PM	#8 (permalink)
ZoomZ Track Member Join Date: Jan 2017 Location: Vancouver, BC Posts: 779 Drives: 17' 370Z Nismo Rep Power: 40618	I think any noise generated in driveline will be transmitted and felt in shift knob. You may not have wrecked anything, you just hearing things now that your senses are heightened. If you take boot off, you can wobble the shaft and see if there is excessive play. If there was, you'd already see it under normal vibration. TM (2020 x 1914).jpg