C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Old Sep 2, 2024 | 08:41 PM
  #821  
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Nice work.
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Old Sep 8, 2024 | 09:00 AM
  #822  
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Took the car for a few small, short drives. I hear some intrusive ticking sounds. Originally I thought it might be a lifter or a loose rocker or the injectors. Now I think there’s an exhaust leak somewhere Be cause it’s more pronounced on throttle opening and not rpm dependent. This noise spoils the test drive as it is very distracting.


Just a couple of shots after washing car.


Rocker moulding needs to be repaired some before reinstalling. That will be my first fiberglass job.


Leak from breather. I know that there is no baffling under there. That needs to be modified.


Drilled a hole in a spare distributor cap to make sure phasing was good. It needed a minor tweak.


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Old Sep 8, 2024 | 09:55 AM
  #823  
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I'll bet it feels good to get it on the road again!
You have done a lot of upgrades and done an amazing job, in a pretty short amount of time.
Now go Enjoy it!
Torque is fun!
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Old Sep 8, 2024 | 12:36 PM
  #824  
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Originally Posted by leigh1322
I'll bet it feels good to get it on the road again!
You have done a lot of upgrades and done an amazing job, in a pretty short amount of time.
Now go Enjoy it!
Torque is fun!
Thanks!!

I don’t know if it is just me, but with the addition of gussets, the welding of all the seams, the power steering reinforcement bracket, and the welding of some holes shut… the car feels significantly stiffer. Possibly, this is all in my mind, but I don’t think so.

Also, blipping the gas in second and chirping the tires is something it did not do before

That TKX is crazy enjoyable. The speedo is spot on - SST gave me the right gear.

It’s just the exhaust leak that is driving me up the walls. It really is a joy-killer

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Old Sep 8, 2024 | 01:40 PM
  #825  
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damn good to see it on road

had/have same noise in chevelle.
doughnut seal at mani.
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Old Sep 8, 2024 | 02:53 PM
  #826  
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Originally Posted by calwldlife
damn good to see it on road

had/have same noise in chevelle.
doughnut seal at mani.


How tight did you torque it. I think the AIM says 7 ft/lbs. that seems… light and prone to coming loose.
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Old Sep 8, 2024 | 03:21 PM
  #827  
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by feel.
3 studs, brass nuts.
damn down pipe flex makes it more of a 1 stud needs to be first to bring pipe
in align and 2 to snug.
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Old Oct 6, 2024 | 04:43 PM
  #828  
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And an interesting failure.

I was having issues with my wiper door and headlights.

One issue was the check valve. I ordered a new one and… it did not work out of the box.


Then under the dust boots…






I think the problem is clear.
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Old Oct 7, 2024 | 06:19 PM
  #829  
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This was my reason for swapping over to Richard454’s electric headlight conversion.
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Old Oct 9, 2024 | 01:01 AM
  #830  
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Originally Posted by OldCarBum
This was my reason for swapping over to Richard454’s electric headlight conversion.
Yes. I have been thinking about doing this conversion. Like everyone else here, the same arguments are going through my head. It’s pricey. OEM should work fine. But the conversion is fully reversible. And minimal mods… no opening dash to access switch. Lights that pop up fast, positively and synchronized give a feel of durability. On other hand it’s only a few seconds here and there on a drive. Etc. Etc. Ad nauseam. . Knowing me, I may well do the conversion soon (but keep the wiper door OEM).
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Old Oct 9, 2024 | 12:32 PM
  #831  
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Richard also has a conversion kit for the wiper door.
You might ask him if he has a special all in one conversion kit deal.
I get people wanting to keep their cars as much oem as possible, but there are some things that make owning one of these cars an improvement and worth doing.
The things that come to my mind are the headlight conversion, the wiper door conversion, the leaking oem brake calipers and the Borgeson power steering box conversion to remove the constantly leaking oem system.
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Old Oct 9, 2024 | 02:01 PM
  #832  
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Originally Posted by OldCarBum
Richard also has a conversion kit for the wiper door.
You might ask him if he has a special all in one conversion kit deal.
I get people wanting to keep their cars as much oem as possible, but there are some things that make owning one of these cars an improvement and worth doing.
The things that come to my mind are the headlight conversion, the wiper door conversion, the leaking oem brake calipers and the Borgeson power steering box conversion to remove the constantly leaking oem system.
Dirty little secret… yesterday I emailed Richard. And he already answered. Did a great job filling me in. I think I’m not going to resist doing the conversions. Primarily because, other than brakes (and maybe because power brakes run off of vacuum) I am not terribly comfortable with other accessories running off of vacuum.

I was briefly considering a Pantera as my next car. Then, for a variety of reasons, I think I’m going to stick with the corvette as my forever car and keep perfecting it. In other words, no plan to resell it and don’t care much to keep it OEM.

I do think a wiper door and headlight conversion will give the car a more durable, reliable feel. That’s important to me. No rattles. Solid feel. Dead-nuts reliable. Great handling. Yet looks original.

BTW, what calipers are you using ?
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Old Oct 9, 2024 | 02:12 PM
  #833  
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I’m using Wilwood D8-6 in the front and D8-4 in the rear.
You can get them direct from Wilwood, they will fit with the oem wheels and you can either run your oem rotors or purchase new drilled/slotted rotors from Wilwood in the original diameter and thickness.
The calipers bolted right up to the oem mounting brackets with no modifications.
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Old Oct 9, 2024 | 02:25 PM
  #834  
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Originally Posted by OldCarBum
I’m using Wilwood D8-6 in the front and D8-4 in the rear.
You can get them direct from Wilwood, they will fit with the oem wheels and you can either run your oem rotors or purchase new drilled/slotted rotors from Wilwood in the original diameter and thickness.
The calipers bolted right up to the oem mounting brackets with no modifications.
Thanks OCB. Have you had opportunity to try them yet ? I know it is/was in paint booth

Same master cylinder ?

Last edited by DorianC3; Oct 9, 2024 at 04:39 PM.
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Old Nov 3, 2024 | 02:18 PM
  #835  
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So, we are modifying again… with a fantastic kit created by @Richard454 The attention to detail is impressive.

Really nice instructions.   I decided to go for the headlights and wiper door conversion.
Really nice instructions. I decided to go for the headlights and wiper door conversion.

Step one… yank these out.
Step one… yank these out.

And here is the failed seal.
And here is the failed seal.

Ready to accept the motor.
Ready to accept the motor.

Aside - got myself a new set of wrenches a while back.  This is the first time I use them.  So very pleasant.  My 20-year-old Craftsman set was getting a little ratty.
Aside - got myself a new set of wrenches a while back. This is the first time I use them. So very pleasant. My 20-year-old Craftsman set was getting a little ratty.

And of course if you give a guy a shiny new 5/8 wrench, he’s going to go all gorilla-mode and snap off the… whatever this thing is called.
And of course if you give a guy a shiny new 5/8 wrench, he’s going to go all gorilla-mode and snap off the… whatever this thing is called.

Also a new buy.  Really pleased with this too.
Also a new buy. Really pleased with this too.

Instructions call for a slight bend if required of a support rod on the driver’s side.  I marked the area with a sharpie and gave it a slight bend… and was very surprised that I was spot on.  It clears the motor beautifully.
Instructions call for a slight bend if required of a support rod on the driver’s side. I marked the area with a sharpie and gave it a slight bend… and was very surprised that I was spot on. It clears the motor beautifully.

Motors installed.  The rest is for another day.  It’s getting late.
Motors installed. The rest is for another day. It’s getting late. It’s always best to quit while things are going well.


Hood removal is not required but I highly recommend it. It such an easy thing to do - why wouldn’t you? These hoods are so light. I mean the hood on my Chevelle was not a one man job… this I’m quite sure I did it alone anyway. I was much younger then.
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Old Nov 3, 2024 | 02:27 PM
  #836  
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There seems to be undue vibration transmitted to the driver - me Possibly due to the solid mount.

Since the hood is off, while I’m at it, (famous last words) might as well replace the solid mount with a rubber sandwich.
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Old Nov 28, 2024 | 01:10 PM
  #837  
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Was it an impulse buy ? I don’t know. I have several projects running. The car is almost down for the season….

To do:
  • replace the PS pump. It's giving inconsistent pressure and leaking from, I think, the cap
  • Replace the solid motor mount with one that has rubber
  • complete the electric pop up headlight conversion
  • Install the rocker molding

For some reason I started looking into replacing the seats. The Fiero conversion is out of the question here as, well… there are no Fieros here.

A little research suggested that first gen Miata (MX-5 here) seats work well. I found some online and, what the hell, I drove over to the Netherlands and picked up a pair in reasonable condition.

I left at 0600 so I would have a bit of my day left after the four hour round trip.
I left at 0600 so I would have a bit of my day left after the four hour round trip.

Score.
Score.

Classic Netherlands
Classic Netherlands

On my way home.
On my way home.

Clearly not original trim
Clearly not original trim


I was surprised to find speakers in the head rest !!! I wonder if this system is any good ?

Last edited by DorianC3; Nov 29, 2024 at 05:51 AM.
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Old Nov 28, 2024 | 01:18 PM
  #838  
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I set immediately to work.

Oooof course as I tried to fab a bracket, when drilling, it shot out and punctured a can of WD-40. It got everywhere



Next step…. Measure, measure, measure before welding. Greatest skill I ever picked up. Learning to weld.

Useful locating spike
Useful locating spike

Cut it off and use to locate the bracket’s height. Simply fill with wire.
Cut it off and use to locate the bracket’s height. Simply fill with wire.

Not too pretty but I’m sure I’ll need to trim anyway.
Not too pretty but I’m sure I’ll need to trim anyway
.

Bzzzt
Bzzzt


Bzzzt
Bzzzt

Fits !!!
Fits !!!

Too late to test.  Maybe Saturday?
Too late to test. Maybe Saturday?

Yes the cover is uuuuugly
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Old Nov 28, 2024 | 11:33 PM
  #839  
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I love it whenever I get to play with my new welder.
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Old Dec 2, 2024 | 02:47 AM
  #840  
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A little more progress.

While I have the PS pump bracket off… let’s work on replacing the solid engine mount.  I’m hoping that will reduce cabin vibration.  I’m not at all confident, but it’s worth a shot.
While I have the PS pump bracket off… let’s work on replacing the solid engine mount. I’m hoping that will reduce cabin vibration. I’m not at all confident, but it’s worth a shot.
Out was relatively easy.
Out was relatively easy.


In was surprisingly easy too….  Except for one bolt that mysteriously would not go in so I replaced it with a stud.
In was surprisingly easy too…. Except for one bolt that mysteriously would not go in so I replaced it with a stud.


Just enough room to slightly lift engine.
Just enough room to slightly lift engine.


Always quit while you’re ahead
Always quit while you’re ahead.

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