The Body Shop TECH General questions that don't fit in any other forum

          
Reply
 
Thread Tools Display Modes
  #1  
Old 04-18-2024, 06:33 PM
TacoTownCharlie TacoTownCharlie is offline
Junior Member
 
Join Date: Jun 2016
Location: Phoenix, AZ, U.S.A.
Posts: 21
Default 78 Trans AM Front Bumper Fiberglass Core Suppport to Horn Bracket Connection

I'm trying to use the somewhat triangular metal part that connects the center of the front bumper to the radiator support (via the car horn vertical bracket). I'm not sure I have the right bolt locations or if I'm using the correct type of bolts.

In the Front Bracket Right picture the two bolts I'm wondering about are facing the camera. It seems to me that the top bolt is not really attached to the horn support bracket - the hole in the bracket is too large. Should the bolt go through the center hole? Or is this a three bolt design?

I wanted to get this installed correctly. As I was working with it I feel like the position of the somewhat triangular support is adjustable on the horn support bracket. If this is adjustable, I' like to move the top bolt as close to the radiator as possible to that the top of the front bumper fascia moves slightly higher and closer to the hood (Hood to Bumper Gap picture).

So, do I have the right bolts and the right bolt positions? Is this the adjustment point to move the fascia closer to the hood?

Thanks in advance for any help .

TacoTownCharlie

Click image for larger version

Name:	Front Bracket Right (Phone).jpg
Views:	67
Size:	35.7 KB
ID:	632285

Click image for larger version

Name:	Front Bracket Left (Phone).jpg
Views:	54
Size:	34.2 KB
ID:	632286

Click image for larger version

Name:	Hood to Bumper Gap (Phone).jpg
Views:	53
Size:	31.6 KB
ID:	632287

  #2  
Old 04-18-2024, 07:01 PM
Yellow Bird Yellow Bird is offline
Senior Member
 
Join Date: Dec 2003
Posts: 160
Default

This is how the fatory bolts appear on my 77 T/A
Attached Thumbnails
Click image for larger version

Name:	thumbnail_IMG_3188.jpg
Views:	44
Size:	47.7 KB
ID:	632293   Click image for larger version

Name:	thumbnail_IMG_3173.jpg
Views:	49
Size:	68.8 KB
ID:	632294  

  #3  
Old 04-18-2024, 07:13 PM
TacoTownCharlie TacoTownCharlie is offline
Junior Member
 
Join Date: Jun 2016
Location: Phoenix, AZ, U.S.A.
Posts: 21
Default

Thanks, those pictures help. I think I might need those large washers. It looks they would overlap the top bolt cutout in the horn support bracket and provide a way to attach the two parts. Without that washer the bolt can just pass through the cutout. Time to check the parts bin
TTC


Sent from my iPad using Tapatalk

  #4  
Old 04-18-2024, 07:14 PM
TacoTownCharlie TacoTownCharlie is offline
Junior Member
 
Join Date: Jun 2016
Location: Phoenix, AZ, U.S.A.
Posts: 21
Default

Thanks, those pictures help. I think I might need those large washers. It looks they would overlap the top bolt cutout in the horn support bracket and provide a way to attach the two parts. Without that washer the bolt can just pass through the cutout. Time to check the parts bin
TTC

  #5  
Old 04-18-2024, 09:43 PM
TacoTownCharlie TacoTownCharlie is offline
Junior Member
 
Join Date: Jun 2016
Location: Phoenix, AZ, U.S.A.
Posts: 21
Default

OK, just to close this out, I was able to find some washers and get everything bolted together. Now that everything is nice and tight the front fascia now sits closer to the hood. The fascia sits a little low in the center compared to the left or right edge where it sits even.

I think this is as close as I'll get it an I'm going to call it a day before I break something .

Thanks to Yellow Bird for the pictures!
TTC

Before:
Click image for larger version

Name:	Hood to Bumper Gap Before.jpg
Views:	51
Size:	31.6 KB
ID:	632295

After:
Click image for larger version

Name:	Hood to Bumper Gap After.jpg
Views:	48
Size:	28.6 KB
ID:	632296

The Following User Says Thank You to TacoTownCharlie For This Useful Post:
  #6  
Old 04-23-2024, 05:09 AM
Red80TA Red80TA is offline
Suspended
 
Join Date: Dec 2023
Posts: 126
Default

Yes, you need large washers to cover the holes they left for adjustment of the nose support bracket. I think the original 5/16" screws shown by Yellow Bird had the captive washer, but if you don't have that type then simply add large washers for clamping beyond holes.\

Also, does your nose cone cover have hex-head screws with washers holding it around the edge into the fibreglass support? Or it may have nylon push-pins if a replacement spare part? The screw type can be adjusted slightly to lift the cover to line up with hood, the push-pins are staying where they sit.


Last edited by Red80TA; 04-23-2024 at 05:16 AM.
  #7  
Old 04-23-2024, 07:59 PM
TacoTownCharlie TacoTownCharlie is offline
Junior Member
 
Join Date: Jun 2016
Location: Phoenix, AZ, U.S.A.
Posts: 21
Default

Thanks for the comment about the large washers. I found two and I think it really helps.

The nose cover has the hex-head screws (purchased from our Sponsor).

Click image for larger version

Name:	Hex Bolts.jpg
Views:	22
Size:	42.0 KB
ID:	632530

I still have a height gap in the center of the hood to the nose cover. It is almost even at the edges. I think I'll take a look at the bolts close to the center and see if I can't bring the nose up just a little bit more. Thanks for your comments.

Click image for larger version

Name:	Hood.jpg
Views:	21
Size:	34.3 KB
ID:	632531

The Following User Says Thank You to TacoTownCharlie For This Useful Post:
  #8  
Old 04-23-2024, 10:16 PM
Red80TA Red80TA is offline
Suspended
 
Join Date: Dec 2023
Posts: 126
Default

That's them. There is minimal adjustment available by loosening a few of them and lifting nose cover to suit or straighten. Of course limited by hole clearance, can be enlarged, covered by washer. The fibreglass threads aren't strong so screw up firm only. It doesn't replace proper panel alignment, just tweaking.

You can also add a washer under the the radiator support to each location that mount the hood latch to bring it down in the centre, allowing hood flex to stay at existing corner heights.


Last edited by Red80TA; 04-23-2024 at 10:21 PM.
  #9  
Old 04-24-2024, 05:44 PM
TacoTownCharlie TacoTownCharlie is offline
Junior Member
 
Join Date: Jun 2016
Location: Phoenix, AZ, U.S.A.
Posts: 21
Default

Red80TA,
Thanks for the info about the nose cover hex screws. I adjusted them as much as I could. The height gap was ~ 4/10''

Click image for larger version

Name:	Height Gap Before.jpg
Views:	29
Size:	21.8 KB
ID:	632564

After I made my adjustments I brought it down by 1/10''

Click image for larger version

Name:	Height Gap After.jpg
Views:	22
Size:	24.6 KB
ID:	632565

I'll take a look at adding a washer under the radiator support where the hood latch bracket attaches. That's a good idea, I'm sure that would have never occurred to me.

The Following User Says Thank You to TacoTownCharlie For This Useful Post:
  #10  
Old 04-24-2024, 10:06 PM
TacoTownCharlie TacoTownCharlie is offline
Junior Member
 
Join Date: Jun 2016
Location: Phoenix, AZ, U.S.A.
Posts: 21
Default

OK, I added one washer under each of the three bolts that attach the hood release to the radiator core support. Two washers thick was too much - I couldn't get the hood to fully engage with the latch mechanism.

Click image for larger version

Name:	Height Gap Update.jpg
Views:	25
Size:	22.2 KB
ID:	632580

I think this is probably the best I can get it. I tell myself that this gap really doesn't bother me too much - my son and I had a little laugh this afternoon about Dad's obsessive tendencies

Big thanks to Yellow Bird for the initial help and to Red80TA for jumping in there with some really helpful suggestions.

See you on the road!

The Following User Says Thank You to TacoTownCharlie For This Useful Post:
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 06:29 PM.

 

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

 




Copyright © 2017