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Kirkham Motorsports

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  #1 (permalink)  
Old 04-06-2018, 10:32 AM
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Yes!! What the heck. Any suggestions?
Cable interference - probably two options:
  1. relocate the cable by fabricating a new bracket; or
  2. provide relief by grinding away a portion of the bellhousing.

I'd go with option 2. Remove the cable and bracket and get in there with a grinder, Dremel tool or file.

As to the return spring - source a proper return spring, then drill a hole in the clutch / shift fork to insert the end of the spring. OTOH, this spring is probably the clutch / shift fork return spring, with another, heavier spring on the clutch pedal or the pulling end of the cable - as seen in this diagram: http://repairguide.autozone.com/znet...528006284c.gif

If that's what your setup looks like, the clutch / shift fork return spring is only doing light duty, so doesn't need to be too strong - it just needs to be better mounted to the fork.
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Old 04-06-2018, 05:43 PM
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Originally Posted by cycleguy55 View Post
Cable interference - probably two options:
  1. relocate the cable by fabricating a new bracket; or
  2. provide relief by grinding away a portion of the bellhousing.

I'd go with option 2. Remove the cable and bracket and get in there with a grinder, Dremel tool or file.

As to the return spring - source a proper return spring, then drill a hole in the clutch / shift fork to insert the end of the spring. OTOH, this spring is probably the clutch / shift fork return spring, with another, heavier spring on the clutch pedal or the pulling end of the cable - as seen in this diagram: http://repairguide.autozone.com/znet...528006284c.gif

If that's what your setup looks like, the clutch / shift fork return spring is only doing light duty, so doesn't need to be too strong - it just needs to be better mounted to the fork.
Thanks CycleGuy
So one other things I was hoping you could help me with and what caused me to investigate the clutch cable was the fact that when speed shifting through the gears ( not power shifting) second, third and fourth sometimes can not engage and it litterly causing a grind or just wont engage. If I perform a healthy run but take a slight pause between shifts there is no issue whatsoever.

What I was curious about was whether the cable isn't properly engaging the clutch fork because of the current setup or does this sound like a syncro problem? Anyway to go through process of elimination?
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Old 04-07-2018, 07:49 AM
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Thanks CycleGuy
So one other things I was hoping you could help me with and what caused me to investigate the clutch cable was the fact that when speed shifting through the gears ( not power shifting) second, third and fourth sometimes can not engage and it litterly causing a grind or just wont engage. If I perform a healthy run but take a slight pause between shifts there is no issue whatsoever.

What I was curious about was whether the cable isn't properly engaging the clutch fork because of the current setup or does this sound like a syncro problem? Anyway to go through process of elimination?
That sounds like the synchros aren't keeping up and acting fast enough when you're 'speed shifting'. Other than re-building the transmission and replacing the synchro rings, are you running synthetic or dino fluid in your transmission?

I know the recommendation for my Richmond transmission was to use dino as synthetic was too slippery for the synchros to work properly. There's one exception - a certain Redline fluid I'm running, but I note the synchros are still not doing the job. I may go back to dino or look for a friction modifier to make them work better.
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Old 04-07-2018, 02:08 PM
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That sounds like the synchros aren't keeping up and acting fast enough when you're 'speed shifting'. Other than re-building the transmission and replacing the synchro rings, are you running synthetic or dino fluid in your transmission?

I know the recommendation for my Richmond transmission was to use dino as synthetic was too slippery for the synchros to work properly. There's one exception - a certain Redline fluid I'm running, but I note the synchros are still not doing the job. I may go back to dino or look for a friction modifier to make them work better.
I haven't the faintest idea. I suppose I will drain and re-fill GM Syncro mesh,
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