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63VWBug Samba Member
Joined: November 30, 2007 Posts: 30 Location: Eureka, CA
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Posted: Fri Mar 07, 2025 11:16 am Post subject: 67 bug won’t shift when motor is running |
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I have a 1967 bug that will not go into a gear when the motor is running.
If you turn motor off, it will go into any gear. I can put it in 1st gear, start motor, the car will move. If you try and shift it binds up, but there is no grinding noises. The clutch releases nicely and smoothly.
The pressure plate, clutch, throw out bearing, the arms supporting the T/O are all good. Bowden tube is in correct position.
The only thing I’ve found is a worn front shift rod bushing. It moves up and down about 3/8”. I know this can cause hard shifting, but will effect the shifting when the motor is running or not?
History…. Car was purchased without a motor. A good motor was installed and shifting issue was discovered. In the yard I’ve driven it in 1st gear and reverse if I turn motor off to select the gear.
Will putting in a new shift bushing fix my problem?
Thank you. _________________ 69 bug KCR Superstreet, Scat 1776, C35 cam, Dual single solex carbs, Scat prostreet heads, 1 3/8 headers with heater boxes retained, 009 dist., 1.25 rockers
63 Bug 2.2 subi motor, 36 dells, mega jolt |
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67rustavenger Samba Member

Joined: February 24, 2015 Posts: 10754 Location: Oregon
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Posted: Fri Mar 07, 2025 11:33 am Post subject: Re: 67 bug won’t shift when motor is running |
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I have never encountered the can't put it in gear with the engine running issue.
That said, it wouldn't hurt to change the shift rod bushing.
Make this tool to assist in getting the shift rod out and back in the tunnel.
_________________ I have learned over the years.
Cheap parts are gonna disappoint you.
Buy Once, Cry Once!
There's never enough time to do it right the first time. But there's always enough time to do it thrice.
GFY's Xevin and VW_Jimbo! |
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63VWBug Samba Member
Joined: November 30, 2007 Posts: 30 Location: Eureka, CA
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Posted: Fri Mar 07, 2025 12:19 pm Post subject: Re: 67 bug won’t shift when motor is running |
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67rustavenger wrote: |
I have never encountered the can't put it in gear with the engine running issue.
That said, it wouldn't hurt to change the shift rod bushing.
Make this tool to assist in getting the shift rod out and back in the tunnel.
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Good idea!! _________________ 69 bug KCR Superstreet, Scat 1776, C35 cam, Dual single solex carbs, Scat prostreet heads, 1 3/8 headers with heater boxes retained, 009 dist., 1.25 rockers
63 Bug 2.2 subi motor, 36 dells, mega jolt |
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mukluk Samba Member

Joined: October 18, 2012 Posts: 7379 Location: Clyde, TX
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Posted: Fri Mar 07, 2025 3:30 pm Post subject: Re: 67 bug won’t shift when motor is running |
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Will changing the shift bushing fix the issue where it won't go into gear with the engine running? Absolutely not. Doesn't mean it's not worth your while to fix that problem as well, but the shift rod bushing cannot cause your main problem.
When a transmission shifts easily into all gears with the engine off but will not do so with the engine running, the cause is the transmission input shaft is not disengaging from the spinning engine. This will be caused either by the clutch disc not releasing properly, or the input shaft is seized in the pilot bearing.
First course of action is to verify the clutch is in fact properly adjusted. If you're unsure if the clutch cable is tightened enough, try turning the adjustment nut(s) in at least five full turns to see if that makes a positive difference. If adjusting the clutch doesn't clear up your issue, then the engine needs to come out to inspect the clutch, TOB, cross shaft, and pilot bearing. _________________ 1960 Ragtop w/Semaphores "Inga" |
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Ragman The Sambinator

Joined: July 18, 2003 Posts: 3518 Location: Denver
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Posted: Fri Mar 07, 2025 4:20 pm Post subject: Re: 67 bug won’t shift when motor is running |
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What makes you think the pressure plate is good?
I would try another one if possible. |
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63VWBug Samba Member
Joined: November 30, 2007 Posts: 30 Location: Eureka, CA
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Posted: Fri Mar 07, 2025 4:59 pm Post subject: Re: 67 bug won’t shift when motor is running |
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Ragman…I assuming the P/P is good because it still looked new and when I drove the yard, car felt normal. I do have a new P/P . clutch disc, and T/O bearing. I just wasn’t convinced it was the issue, so I was looking for input before reassembling.
Mukluk….thank you for your informative input. I did play with different clutch adjustments with no positive charges. I will look at replacing the shift rod bushing, but wanted to isolate my first issue. When I removed the motor I really thought it was going to be a bent or cracked arm the T/O bearing rides on. I have a new clutch disc pressure plate, and bearing to go in on the reinstall. I bought it from a guy who put the motor in the car. He gave up on the project because of the current issue. Thanks again. _________________ 69 bug KCR Superstreet, Scat 1776, C35 cam, Dual single solex carbs, Scat prostreet heads, 1 3/8 headers with heater boxes retained, 009 dist., 1.25 rockers
63 Bug 2.2 subi motor, 36 dells, mega jolt |
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Cusser Samba Member

Joined: October 02, 2006 Posts: 32758 Location: Hot Arizona
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63VWBug Samba Member
Joined: November 30, 2007 Posts: 30 Location: Eureka, CA
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Posted: Fri Mar 07, 2025 8:02 pm Post subject: Re: 67 bug won’t shift when motor is running |
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Cusser wrote: |
1967 bug; I assume your 200mm pressure plate DOES have a center ring, right? |
Yes it does. _________________ 69 bug KCR Superstreet, Scat 1776, C35 cam, Dual single solex carbs, Scat prostreet heads, 1 3/8 headers with heater boxes retained, 009 dist., 1.25 rockers
63 Bug 2.2 subi motor, 36 dells, mega jolt |
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Schnitzelfuss Samba Member
Joined: September 18, 2024 Posts: 86 Location: North Alabama
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Posted: Sat Mar 08, 2025 12:29 am Post subject: Re: 67 bug won’t shift when motor is running |
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When you start the car in first gear with the clutch pedal depressed does the car move? (e.g. you’ve confirmed the clutch is not frozen to the pressure plate?) |
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VW_Jimbo  Samba Member

Joined: May 22, 2016 Posts: 10897 Location: Huntington Beach, CA
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Posted: Sat Mar 08, 2025 12:19 pm Post subject: Re: 67 bug won’t shift when motor is running |
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mukluk wrote: |
When a transmission shifts easily into all gears with the engine off but will not do so with the engine running, the cause is the transmission input shaft is not disengaging from the spinning engine. This will be caused either by the clutch disc not releasing properly, or the input shaft is seized in the pilot bearing.
First course of action is to verify the clutch is in fact properly adjusted. If you're unsure if the clutch cable is tightened enough, try turning the adjustment nut(s) in at least five full turns to see if that makes a positive difference. If adjusting the clutch doesn't clear up your issue, then the engine needs to come out to inspect the clutch, TOB, cross shaft, and pilot bearing. |
This is what my first thought was, too! Drop the engine and have a look. It will not hurt anything and it may lead to other discoveries that need attention! _________________ Jimbo
There is never enough time to do it right the first time, but all the time necessary the second time!
TDCTDI wrote: |
Basically, a whole bunch of fuckery to achieve a look. |
67rustavenger wrote: |
GFY's Xevin and VW_Jimbo!  |
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shano63  Samba Member

Joined: October 06, 2006 Posts: 3610 Location: Stormville NY
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Posted: Sat Mar 08, 2025 12:56 pm Post subject: Re: 67 bug won’t shift when motor is running |
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This happened to me with my 63 as well. I was getting it back together, fresh engine rebuild, new clutch..etc. Turns out the clutch disc was just a bit too thick. I bought another disc, problem solved. The new disc was just a bit thinner than the one I had. 18k miles later, still going strong. Just a thought _________________ 63 T1 Ragtop Gulf Blue
20 Toyota Corolla 6spd
22 Wrangler 6spd
78 F250 4x4 4spd
Chris
Take it as it comes-- Morrison |
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VW_Jimbo  Samba Member

Joined: May 22, 2016 Posts: 10897 Location: Huntington Beach, CA
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Posted: Sat Mar 08, 2025 2:41 pm Post subject: Re: 67 bug won’t shift when motor is running |
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shano63 wrote: |
This happened to me with my 63 as well. I was getting it back together, fresh engine rebuild, new clutch..etc. Turns out the clutch disc was just a bit too thick. I bought another disc, problem solved. The new disc was just a bit thinner than the one I had. 18k miles later, still going strong. Just a thought |
The spec for the disc is 7mm minimum thickness, if I remember that correctly. I can recall pulling out my 8mm wrench to check them when ever I would do a clutch job. There was a point back in the early 80s when an after market company was producing 8.5mm thick discs that would not release. It is a quick check. To be sure you could use a caliper to verify. _________________ Jimbo
There is never enough time to do it right the first time, but all the time necessary the second time!
TDCTDI wrote: |
Basically, a whole bunch of fuckery to achieve a look. |
67rustavenger wrote: |
GFY's Xevin and VW_Jimbo!  |
Last edited by VW_Jimbo on Sat Mar 08, 2025 7:00 pm; edited 1 time in total |
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mukluk Samba Member

Joined: October 18, 2012 Posts: 7379 Location: Clyde, TX
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Posted: Sat Mar 08, 2025 3:15 pm Post subject: Re: 67 bug won’t shift when motor is running |
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VW_Jimbo wrote: |
shano63 wrote: |
This happened to me with my 63 as well. I was getting it back together, fresh engine rebuild, new clutch..etc. Turns out the clutch disc was just a bit too thick. I bought another disc, problem solved. The new disc was just a bit thinner than the one I had. 18k miles later, still going strong. Just a thought |
The spec for the disc is 7mm thick, if I remember that correctly. I can recall pulling out my 7mm wrench to check them when ever I would do a clutch job. There was a point back in the early 80s when an after market company was producing 8mm thick discs that would not release. It is a quick check. To be sure you could use a caliper to verify. |
IIRC, minimum spec is 7mm while new is 8mm. Snug fit with an open end wrench measuring method works well (pic courtesy of Zundfolge1432's gallery).
_________________ 1960 Ragtop w/Semaphores "Inga" |
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Cusser Samba Member

Joined: October 02, 2006 Posts: 32758 Location: Hot Arizona
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Posted: Sat Mar 08, 2025 5:10 pm Post subject: Re: 67 bug won’t shift when motor is running |
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mukluk wrote: |
VW_Jimbo wrote: |
The spec for the disc is 7mm thick, if I remember that correctly. I can recall pulling out my 7mm wrench to check them when ever I would do a clutch job. |
IIRC, minimum spec is 7mm while new is 8mm. |
I also remember checking disc thickness with my 7mm open end wrench, and that is the "replace now minimum thickness". I cannot remember ever measuring the thickness of a new clutch disc myself. _________________ 1970 VW (owned since 1972) and 1971 VW Convertible (owned since 1976), second owner of each. The '71 now has the 1835 engine, swapped from the '70. Second owner of each. 1988 Mazda B2200 truck, 1998 Frontier, 2014 Yukon, 2004 Frontier King Cab. All manual transmission except for the Yukon. http://www.thesamba.com/vw/forum/album_page.php?pic_id=335294 http://www.thesamba.com/vw/forum/album_page.php?pic_id=335297 |
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VW_Jimbo  Samba Member

Joined: May 22, 2016 Posts: 10897 Location: Huntington Beach, CA
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Posted: Sat Mar 08, 2025 7:03 pm Post subject: Re: 67 bug won’t shift when motor is running |
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Cusser wrote: |
mukluk wrote: |
VW_Jimbo wrote: |
The spec for the disc is 7mm thick, if I remember that correctly. I can recall pulling out my 7mm wrench to check them when ever I would do a clutch job. |
IIRC, minimum spec is 7mm while new is 8mm. |
I also remember checking disc thickness with my 7mm open end wrench, and that is the "replace now minimum thickness". I cannot remember ever measuring the thickness of a new clutch disc myself. |
I only did when they started being manufactured thicker than 8mm. Lots of cars came in, from DIY mechanics, on hooks due to “not able to be shifted.” _________________ Jimbo
There is never enough time to do it right the first time, but all the time necessary the second time!
TDCTDI wrote: |
Basically, a whole bunch of fuckery to achieve a look. |
67rustavenger wrote: |
GFY's Xevin and VW_Jimbo!  |
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63VWBug Samba Member
Joined: November 30, 2007 Posts: 30 Location: Eureka, CA
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Posted: Sun Mar 09, 2025 9:23 am Post subject: Re: 67 bug won’t shift when motor is running |
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Schnitzelfuss wrote: |
When you start the car in first gear with the clutch pedal depressed does the car move? (e.g. you’ve confirmed the clutch is not frozen to the pressure plate?) |
Yes, the car will move in 1st and reverse. The launch is smooth too-no chatter.
The car was driven on and off a trailer with no issues. _________________ 69 bug KCR Superstreet, Scat 1776, C35 cam, Dual single solex carbs, Scat prostreet heads, 1 3/8 headers with heater boxes retained, 009 dist., 1.25 rockers
63 Bug 2.2 subi motor, 36 dells, mega jolt |
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63VWBug Samba Member
Joined: November 30, 2007 Posts: 30 Location: Eureka, CA
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Posted: Sun Mar 09, 2025 9:36 am Post subject: Re: 67 bug won’t shift when motor is running |
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mukluk wrote: |
VW_Jimbo wrote: |
shano63 wrote: |
This happened to me with my 63 as well. I was getting it back together, fresh engine rebuild, new clutch..etc. Turns out the clutch disc was just a bit too thick. I bought another disc, problem solved. The new disc was just a bit thinner than the one I had. 18k miles later, still going strong. Just a thought |
The spec for the disc is 7mm thick, if I remember that correctly. I can recall pulling out my 7mm wrench to check them when ever I would do a clutch job. There was a point back in the early 80s when an after market company was producing 8mm thick discs that would not release. It is a quick check. To be sure you could use a caliper to verify. |
IIRC, minimum spec is 7mm while new is 8mm. Snug fit with an open end wrench measuring method works well (pic courtesy of Zundfolge1432's gallery).
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I measured the clutch, 8mm has a bit of slop. 7mm won’t fit.
My 11/32nd wrench fit nicely over both the old and new clutch I bought.
New clutch is from CIP. _________________ 69 bug KCR Superstreet, Scat 1776, C35 cam, Dual single solex carbs, Scat prostreet heads, 1 3/8 headers with heater boxes retained, 009 dist., 1.25 rockers
63 Bug 2.2 subi motor, 36 dells, mega jolt |
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63VWBug Samba Member
Joined: November 30, 2007 Posts: 30 Location: Eureka, CA
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Posted: Mon Mar 24, 2025 7:17 pm Post subject: Re: 67 bug won’t shift when motor is running |
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Update…..
I found the problem…clutch tube weld was broke. Welded her up, all good. _________________ 69 bug KCR Superstreet, Scat 1776, C35 cam, Dual single solex carbs, Scat prostreet heads, 1 3/8 headers with heater boxes retained, 009 dist., 1.25 rockers
63 Bug 2.2 subi motor, 36 dells, mega jolt |
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