C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Old Dec 6, 2018 | 01:31 PM
  #181  
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Wow! Great thread. I just read it all and you have made some great progress. Thanks for sharing and I look forward to seeing more!
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Old Dec 9, 2018 | 01:45 PM
  #182  
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Thanks
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Old Dec 9, 2018 | 01:57 PM
  #183  
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A story of success and failure.

So I went through the fiber optics. Cleaned the ends and shined a light trough them. The front ones all seemed to work except for one.

It turns out, concealed under some electric tape again, the fiber optic was pinched.





I read somewhere that a fellow here would fix these things on the assembly line in 1970 with some wire sheath with copper removed. So I tried that out... I hollowed our the thickest wire I had in my parts bin. I cut the ends square and moistened (use your imagination) and joined in the hollowed our sheath. It worked very well. Thank problem now is that it’s somewhat brighter than the others





I am exploring solid core fiber 2.5 inner core; 3.5 overall. 30 feet is much more affordable than a reproduction harness. Hmmm
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Old Dec 11, 2018 | 04:24 AM
  #184  
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I am thinking about getting 100ft of 3.5 mm OD for $89

https://www.ebay.com/itm/3-5mm-to-17...UWw:rk:14:pf:0
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Old Dec 16, 2018 | 03:10 PM
  #185  
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Digging a little deeper I’m finding additional reasons for the fiber optics not to work.





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Old Dec 16, 2018 | 03:33 PM
  #186  
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Cross shafts to be sent to the machine shop tomorrow to be “slotted” in pursuit of increased caster.



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Old Dec 16, 2018 | 03:37 PM
  #187  
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And my first ever Alibaba order. Solid core end glow fiber optic cable. This is a bit of a Hail Mary, but at $26 for 50 meters, it seems like a good gamble.



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Old Dec 29, 2018 | 04:12 PM
  #188  
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I finally pulled the trigger on a whole bunch of parts from Wilcox. In the meantime, I wait for the fiber optics to come in as well as the order.

Also waiting for the cross shafts to get done.

Still stripping the paint off of the interior panels on my quest to right a terrible dye job. For memory: the dye is on way too thick filling in the grain and flaking off in some spots. It’s also way too dark.

I’m refining the process of stripping off the paint. I ruined so far only the parking brake console. The vinyl is holding up all right to the stripper. The parking brake console is the only panel so far not to have vinyl covering.

Today I took on my speedo/tacho rash. Carefully sanding, masking and painting.





Wet sanded with 180 and 220.



Masking tape peeled off but still some razor tidying to be done. #pleased






Last edited by DorianC3; Dec 29, 2018 at 04:15 PM.
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Old Dec 29, 2018 | 04:46 PM
  #189  
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Nicely done. Looks great.
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Old Dec 29, 2018 | 05:19 PM
  #190  
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Let’s get a closer look at that lens. It almost looks like there is some mold on it. Let’s narrow in a bit on a spot and see if Meguiar’s Scratch X and a terry cloth will improve things or ruin...





It seems safe enough to work... let’s try polishing the entire lens. The other lens even seems to have some overspray on it.



45 min later...





#PleasedAgain

Last edited by DorianC3; Dec 29, 2018 at 05:20 PM.
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Old Dec 30, 2018 | 06:49 AM
  #191  
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Still stripping paint. Sometimes I wonder if it was dyed dark blue, black... or if it’s that and gunk.

This is the dash pad. It looks caked on... whatever “it” is.



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Old Dec 31, 2018 | 03:44 PM
  #192  
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Yay. The fiber optic line (2mm core, 3mm OD, end glow, 50 meters) came in and it seems promising. This is my first order from Alibaba, China.





I shined some light through one end and it came out the other brightly if green. Over 50 meters, that has got to be some kind of attenuation.



Over a shorter distance it’s brighter and as white as the LED source.



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Old Dec 31, 2018 | 03:49 PM
  #193  
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Size seems to be fine.

Lens needs some cleaning and polishing.




Seens to work fine.







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Old Dec 31, 2018 | 03:59 PM
  #194  
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Renewing the center gauge cluster.






Sanding again...






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Old Dec 31, 2018 | 04:02 PM
  #195  
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Ready.









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Old Jan 3, 2019 | 04:14 PM
  #196  
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More Bubba





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Old Jan 3, 2019 | 04:20 PM
  #197  
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The solid core fiber optic seems to work well. Bright. The light comes through more red than it appears on the picture.






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Old Jan 3, 2019 | 04:25 PM
  #198  
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Time to remove carpeting.



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Old Jan 4, 2019 | 11:06 AM
  #199  
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So I blew some compressed air in the vacuum tank and felt obvious leaks.

To drop the tank i needed to remove the clutch rod, brake booster, the horn relay and the harness to get it out.

The tank looks fine. Not rusted at all. It looks like it was pinched. You can see the marks. And this cracked it in three places.

















This looks clean enough for me to to try to JB weld.
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Old Jan 5, 2019 | 05:37 AM
  #200  
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I found three cracks in the tank. I bought some kneadable epoxy for steel and ‘Hail Mary-ed’ it.






I could only pull out a few inches before my hand got exhausted. The needle held for 5 minutes without budging after which I called it good. Sand and paint maybe tomorrow.





Last edited by DorianC3; Jan 5, 2019 at 05:56 AM.
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