Author Topic: Leaky Neutral Switch Case Fix  (Read 489 times)

0 Members and 1 Guest are viewing this topic.

Offline davis

  • Trade Count: (0)
  • Full Bridgestone Member
  • ***
  • Posts: 144
  • Desire for a better world.
Leaky Neutral Switch Case Fix
« on: October 26, 2018, 08:28:22 PM »
Just wanted to share an idea on making the Neutral Switch Case leak-free. I got tired of cracking the (old) plastic cases from either installation or engine vibration so I cut a groove in the shifter drum shaft for a #013 (1/16" nominal) o-ring and wrapped teflon tape on the center screw threads. I haven't run with this modification, but bench tested it using kerosine without leaking. I also had some success with using rubber washers under the three mounting screw heads.

- Bob

Online moonpup

  • Laidback Purist
  • Trade Count: (0)
  • Master Registered Bridgestone Member
  • *****
  • Posts: 2187
Re: Leaky Neutral Switch Case Fix
« Reply #1 on: October 26, 2018, 08:53:38 PM »
 nopics

« Last Edit: October 27, 2018, 09:06:41 PM by moonpup »
Confucius say... "Better to have Bridgestone than Kidneystone"

Online moonpup

  • Laidback Purist
  • Trade Count: (0)
  • Master Registered Bridgestone Member
  • *****
  • Posts: 2187
Re: Leaky Neutral Switch Case Fix
« Reply #2 on: October 27, 2018, 09:05:57 PM »
Bob was unable to post a pic of his fix. He sent it to me and asked if I'd post it, so here it is.
Confucius say... "Better to have Bridgestone than Kidneystone"

Offline BRT-GTR

  • Brian
  • Trade Count: (0)
  • Master Registered Bridgestone Member
  • *****
  • Posts: 900
Re: Leaky Neutral Switch Case Fix
« Reply #3 on: October 29, 2018, 12:29:09 PM »
     Bob,
           Great job on fitting an 'o' ring to the change drum. I fitted a neutral switch just last week and within hours was taking it off again to try resealing it. Occurred to me that BS could have so easily installed a seal on the shaft.                     Brian
« Last Edit: October 30, 2018, 06:53:53 AM by BRT-GTR »
Unspoiled by progress.
I'm so glad I grew up in the 60s & 70s. I did so much stupid stuff and there's no record of it.............Anywhere !!

Offline davis

  • Trade Count: (0)
  • Full Bridgestone Member
  • ***
  • Posts: 144
  • Desire for a better world.
Re: Leaky Neutral Switch Case Fix
« Reply #4 on: October 29, 2018, 08:25:28 PM »
Thanks Brian.

If you don't want to replace the shift drum (as I am going to do this winter) the teflon tape on the longest screw that can be fit in (13mm) will slow down the leak significantly.

- Bob

Offline BRT-GTR

  • Brian
  • Trade Count: (0)
  • Master Registered Bridgestone Member
  • *****
  • Posts: 900
Re: Leaky Neutral Switch Case Fix
« Reply #5 on: October 31, 2018, 07:30:08 AM »
       Cheers Bob, will take you up on tip to seal thread with tape. Pull it off again.............Aaaarrrrrgggggh ;)             Brian.
Unspoiled by progress.
I'm so glad I grew up in the 60s & 70s. I did so much stupid stuff and there's no record of it.............Anywhere !!

Offline steve

  • Trade Count: (0)
  • Full Bridgestone Member
  • ***
  • Posts: 136
Re: Leaky Neutral Switch Case Fix
« Reply #6 on: October 31, 2018, 07:39:09 AM »
Brian,

I see that Bob calls it 'teflon' tape...I'm not familiar with that, so wondered what we would buy over here...PTFE?

Steve

Offline BRT-GTR

  • Brian
  • Trade Count: (0)
  • Master Registered Bridgestone Member
  • *****
  • Posts: 900
Re: Leaky Neutral Switch Case Fix
« Reply #7 on: October 31, 2018, 04:51:46 PM »
           Hi Steve,
                          You are right, Teflon tape in the US, PTFE here, same stuff.                            Brian.
« Last Edit: November 01, 2018, 06:49:44 AM by BRT-GTR »
Unspoiled by progress.
I'm so glad I grew up in the 60s & 70s. I did so much stupid stuff and there's no record of it.............Anywhere !!

 


Gallery


Views:14
Comments (0)
By: rwgibbon

Views:10
Comments (0)
By: rwgibbon

Views:21
Comments (0)
By: rwgibbon

Views:26
Comments (1)
By: rwgibbon

Classifieds

GTO
Date: 04/29/2020 11:27 am
Time Left:
Keys & Carb pieces wanted
Date: 04/23/2020 04:44 pm
Time Left:
Taka Rear Fender
Date: 04/03/2020 07:24 am
Time Left:
Wanted: 100TMX Oil Pump Inlet Spring and Check Ball
Date: 03/26/2020 11:40 pm
Time Left:

Recent Downloads added

350 GTR pdf version

Rating: (None)
Filesize: 7366.26KB
Date: March 14, 2020, 09:41:23 AM
Parts Manual for BS175-200 Lights
Rating: (None)
Filesize: 971.88KB
Date: March 06, 2020, 04:30:46 PM
!75 Wiring Diagram - Color Coded
Rating: *****
Filesize: 136.77KB
Date: February 27, 2019, 01:00:42 PM
11/01/1967 Factory Service Letter, RH shift/LH Brake conversion

Rating: (None)
Filesize: 92.56KB
Date: August 03, 2018, 02:49:08 AM

Powered by EzPortal