My 67 L78 Build - Page 11 - Team Camaro Tech
Build Projects follow along start to finish

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post #151 of 239 (permalink) Old Apr 30th, 18, 06:04 PM
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Scott
 
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Re: My 67 L78 Build

Quote:
Originally Posted by Sosh67 View Post
Fit the glass and checked the trim fit. Everything fit as I had hoped! I'll apply the rope caulk tomorrow.
Did you use butyl or urethane as somewhat stated in another post? The factory did not use butyl tape, pumpable Thiokol was used prior to the introduction of urethane. Although many use butyl, it does not meet FMVSS, and a shop cannot use it due to insurance requirements, they must use urethane.

Call for restoration and custom paint scheduling:
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post #152 of 239 (permalink) Old Apr 30th, 18, 06:05 PM Thread Starter
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It's my first BB. The torque from the 454 is by far more fun than any SB I have owned.
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post #153 of 239 (permalink) Old Apr 30th, 18, 06:56 PM Thread Starter
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Quote:
Originally Posted by Sauron67MM View Post
Quote:
Originally Posted by Sosh67 View Post
Fit the glass and checked the trim fit. Everything fit as I had hoped! I'll apply the rope caulk tomorrow.
Did you use butyl or urethane as somewhat stated in another post? The factory did not use butyl tape, pumpable Thiokol was used prior to the introduction of urethane. Although many use butyl, it does not meet FMVSS, and a shop cannot use it due to insurance requirements, they must use urethane.
I used both. I used butyl and also used polyuritain. Butyl 1/2 inch inside edge of glass. Polyurithain bead outside that.

I have never installed glass but did discuss the best process with several friends that have installed on very high end cars. I was going for a result that would hold up over time and protect the window from leaks.

The butyl/ polyurethane combination appears to be the best of both worlds.

As far as taking the car to a shop, I'll be the only one ever touching this vehicle. But, I do appreciate all the advice posted on this site. It has been instrumental to the success of my project.
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post #154 of 239 (permalink) Old May 1st, 18, 04:30 AM
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Scott
 
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Re: My 67 L78 Build

The factory used a fabric reinforced dam in combination with Thiokol. We now use urethane with or without a dam. No offense, but butyl/urethane is not the best method. A skilled hobbyist or a qualified glass tech can lay a nice, neat bead of urethane and it will not be seen beyond the moldings. The applicator tip is cut in a V-shape to lay the bead correctly and at the correct thickness. Pics of original dam at CRG, and more info here about how to correctly install glass and how not to: https://www.camaros.net/forums/12-bod...indshield.html If you read the TDS for urethane, it will state to apply only over factory paint. If the car is repaired, it is to be applied over epoxy with no topcoat. The company states so to reduce any retention issues caused by improper prep prior to topcoat. A tech knows if he prepped correctly. However, I just tape off the epoxied window channel bed prior to topcoat. If I have a glass tech install the glass, this is what he prefers. They can't stand the screw in window molding studs either, nor can I. Which is why I weld mine on.

Call for restoration and custom paint scheduling:
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post #155 of 239 (permalink) Old May 1st, 18, 05:03 AM Thread Starter
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Quote:
Originally Posted by Sauron67MM View Post
The factory used a fabric reinforced dam in combination with Thiokol. We now use urethane with or without a dam. No offense, but butyl/urethane is not the best method. A skilled hobbyist or a qualified glass tech can lay a nice, neat bead of urethane and it will not be seen beyond the moldings. The applicator tip is cut in a V-shape to lay the bead correctly and at the correct thickness. Pics of original
dam at CRG, and more info here about how to correctly install glass and how not to: https://www.camaros.net/forums/12-bod...indshield.html If you read the TDS for urethane, it will state to apply only over factory paint. If the car is repaired, it is to be applied over epoxy with no topcoat. The company states so to reduce any retention issues caused by improper prep prior to topcoat. A tech knows if he prepped correctly. However, I just tape off the epoxied window channel bed prior to topcoat. If I have a glass tech install the glass, this is what he prefers. They can't stand the screw in window molding studs either, nor can I. Which is why I weld mine on.
I appreciate the additional info. I watched several videos of the process you mention here. In this and other forums, there is quite a debate to the effectiveness of the polyurethane. I read many articles and posts where the polyurethane lifts or separates allowing water in.

I did not want to take the chance of screwing up during the install process.

I may try the polyurethane alone on my blue 67....once I buy some quality glass installation hardware.
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post #156 of 239 (permalink) Old May 1st, 18, 10:40 AM Thread Starter
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Re: My 67 L78 Build

Quote:
Originally Posted by Sauron67MM View Post
The factory used a fabric reinforced dam in combination with Thiokol. We now use urethane with or without a dam. No offense, but butyl/urethane is not the best method. A skilled hobbyist or a qualified glass tech can lay a nice, neat bead of urethane and it will not be seen beyond the moldings. The applicator tip is cut in a V-shape to lay the bead correctly and at the correct thickness. Pics of original dam at CRG, and more info here about how to correctly install glass and how not to: https://www.camaros.net/forums/12-bod...indshield.html If you read the TDS for urethane, it will state to apply only over factory paint. If the car is repaired, it is to be applied over epoxy with no topcoat. The company states so to reduce any retention issues caused by improper prep prior to topcoat. A tech knows if he prepped correctly. However, I just tape off the epoxied window channel bed prior to topcoat. If I have a glass tech install the glass, this is what he prefers. They can't stand the screw in window molding studs either, nor can I. Which is why I weld mine on.

BTW - I did buy the trim tab spot welder and what a difference it makes to weld those tabs in. I agree with you that it's the only way to go. I learned about the welder, adaptor and tabs on this forum.
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post #157 of 239 (permalink) Old May 1st, 18, 06:17 PM
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Re: My 67 L78 Build

I am about to install my windshield glass. Do you have any pointers that can help? My trim clips screw in the frame. Should I weld them in place?

Patrick
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post #158 of 239 (permalink) Old May 1st, 18, 07:27 PM
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Scott
 
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Re: My 67 L78 Build

Quote:
Originally Posted by Sosh67 View Post
I appreciate the additional info. I watched several videos of the process you mention here. In this and other forums, there is quite a debate to the effectiveness of the polyurethane. I read many articles and posts where the polyurethane lifts or separates allowing water in.

I did not want to take the chance of screwing up during the install process.

I may try the polyurethane alone on my blue 67....once I buy some quality glass installation hardware.
I've been doing this for decades. Disregard most of what you hear and follow a qualified glass tech's advice who has many years of experience, especially in restoration. Is the urethane in your new car failing? How about your twenty year old car? My new and old cars are not leaking due to urethane failure. If glass is leaking, it is because the installer sucked at their job, or the body tech hacked the channel repair. One can use hobby forums as a source for some info, but one should rely on professional sites for accuracy as it pertains to a particular profession. I installed my first windshield with urethane in 1985 and had no issues.

Call for restoration and custom paint scheduling:
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post #159 of 239 (permalink) Old May 2nd, 18, 05:59 PM Thread Starter
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Quote:
Originally Posted by Sauron67MM View Post
Quote:
Originally Posted by Sosh67 View Post
I appreciate the additional info. I watched several videos of the process you mention here. In this and other forums, there is quite a debate to the effectiveness of the polyurethane. I read many articles and posts where the polyurethane lifts or separates allowing water in.

I did not want to take the chance of screwing up during the install process.

I may try the polyurethane alone on my blue 67....once I buy some quality glass installation hardware.
I've been doing this for decades. Disregard most of what you hear and follow a qualified glass tech's advice who has many years of experience, especially in restoration. Is the urethane in your new car failing? How about your twenty year old car? My new and old cars are not leaking due to urethane failure. If glass is leaking, it is because the installer sucked at their job, or the body tech hacked the channel repair. One can use hobby forums as a source for some info, but one should rely on professional sites for accuracy as it pertains to a particular profession. I installed my first windshield with urethane in 1985 and had no issues.
Thanks for the information.
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post #160 of 239 (permalink) Old May 2nd, 18, 06:04 PM Thread Starter
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A bit more progress. Installed:
1. Restored drive shaft.
2. Voltage regulator.
3. Engine harness.
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post #161 of 239 (permalink) Old May 7th, 18, 04:55 AM Thread Starter
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Well, my wife was so happy to have her dining room back, she sent me a pic to post. This room was filled with parts "wall to wall" over the past 8 months ( including a subframe).

She was extremely supportive and forgiving.....even when I ruined her carpet.
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post #162 of 239 (permalink) Old May 7th, 18, 05:01 AM Thread Starter
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Progress over the weekend:
1. Installed clutch fork 😞
2. Installed wiper transmission.
3. Cleaned and installed horn relay.
4. Installed heater hoses.
5. Installed exhaust.
6. Cleaned up a few paint issues.
7. Began sanding body paint with 1500 to remove orange peel.
8. Installed the clutch fork dust shield.
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post #163 of 239 (permalink) Old May 7th, 18, 06:21 AM
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Re: My 67 L78 Build

Why do you have the horn relay mounted upside down?

Mike

67 LOS SS/RS L35 Hardtop - Original w/UOIT
67 NOR SS/RS L35 Convertible - Restored
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post #164 of 239 (permalink) Old May 7th, 18, 08:18 AM Thread Starter
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Quote:
Originally Posted by Mike_S View Post
Why do you have the horn relay mounted upside down?

Mike
Unintentional.
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post #165 of 239 (permalink) Old May 12th, 18, 11:36 AM Thread Starter
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More progress. I received my recoated super-comp headers Friday. I installed them as well as the passenger inner and outer fender. It went smoothly!
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