Gettin old is hell. 
Headlight vacuum relay bracket
Thread Starter
Drifting
Joined: Aug 2005
Posts: 1,289
Likes: 3
From: East Waterboro Maine
Headlight vacuum relay bracket
While reinstalling the headlight vacuum system on my 71 this morning I noticed that the bracket that supports the two headlight vacuum relays is missing. I've tried finding a replacement part online, but haven't had much luck. Does anyone have a photo of what the bracket looks like? I'm thinking maybe I can fabricate something if it's just a flat plate with a few holes.
Last edited by Maine Vette; Jul 22, 2012 at 09:01 PM.
Melting Slicks
Joined: Apr 2007
Posts: 3,189
Likes: 111
From: Tolland CT
Part #3966703, shows up on page UPC12 A13 of the 70 assembly manual.
I replaced my headlight relays last year. From what I recall there's not much to it. I tried to take a picture, difficult while installed.
I replaced my headlight relays last year. From what I recall there's not much to it. I tried to take a picture, difficult while installed.
Team Owner
Joined: Sep 2006
Posts: 31,161
Likes: 4,242
From: Westminster Maryland
Hi MV,
When you look at the AIM sheet BBC suggested NOTICE that the plate has a 'crease' in it so part of the plate is held away from the hood surround so the mounting screws for the relays don't contact the fiberglass.
3 screws mount the plate to the headlight support bar; a template will show you where they need to be on your homemade plate.
Good Luck!
Regards,
Alan
PS: Roger's point.... did the plate appear when there were 2 relays rather than 1?
When you look at the AIM sheet BBC suggested NOTICE that the plate has a 'crease' in it so part of the plate is held away from the hood surround so the mounting screws for the relays don't contact the fiberglass.
3 screws mount the plate to the headlight support bar; a template will show you where they need to be on your homemade plate.
Good Luck!
Regards,
Alan
PS: Roger's point.... did the plate appear when there were 2 relays rather than 1?
Thread Starter
Drifting
Joined: Aug 2005
Posts: 1,289
Likes: 3
From: East Waterboro Maine
Thanks for the part number Roger, that should be for a help as I try to find a replacement.
When I bought my car the relays were mounted directly to the header bar. It wasn't until this morning, when I was looking at the routing diagrams in the AIM, that I realized the plate was missing.
I'm certain I could fabricate a replacement pretty easily, but without actual measurements I'm not going to attempt it - too many variables. So now I'm back to trying to find a replacement...
When restoring a Corvette I've learned to always expect the unexpected. It figures I just ordered some parts last night
.
When I bought my car the relays were mounted directly to the header bar. It wasn't until this morning, when I was looking at the routing diagrams in the AIM, that I realized the plate was missing.
I'm certain I could fabricate a replacement pretty easily, but without actual measurements I'm not going to attempt it - too many variables. So now I'm back to trying to find a replacement...
When restoring a Corvette I've learned to always expect the unexpected. It figures I just ordered some parts last night
.
Thread Starter
Drifting
Joined: Aug 2005
Posts: 1,289
Likes: 3
From: East Waterboro Maine
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Racer
Joined: Dec 2011
Posts: 395
Likes: 0
From: Yomitan-son Okinawa
The relays on my 72 are screwed to the header bar directly as well.
Cheers
Vito
Thread Starter
Drifting
Joined: Aug 2005
Posts: 1,289
Likes: 3
From: East Waterboro Maine
Thanks Vito - good to know. For what it's worth to the discussion, here's a picture of the sheet from my 71 AIM.
I'm guessing that, if it worked without the bracket in 71, I could probably do away with the bracket on my 71. I'm guessing the vacuum hose routing won't be quite as neat though.
I'm guessing that, if it worked without the bracket in 71, I could probably do away with the bracket on my 71. I'm guessing the vacuum hose routing won't be quite as neat though.
Former Vendor
Joined: Aug 2006
Posts: 76,656
Likes: 1,850
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
it will work just fine without out it.. I need to look in to making that part... second call for it in the last month.
Drifting
Joined: Jul 2006
Posts: 1,259
Likes: 154
From: Deplorableville Nebraska
Thread Starter
Drifting
Joined: Aug 2005
Posts: 1,289
Likes: 3
From: East Waterboro Maine
Thread Starter
Drifting
Joined: Aug 2005
Posts: 1,289
Likes: 3
From: East Waterboro Maine
Thanks Dave - that's a big help. Real good clear picture of where the bracket goes. Definitely looks like it would be easy to make. Maybe someone will be able to chime in with some overall dimensions.
Safety Car
Joined: Sep 1999
Posts: 4,930
Likes: 11
From: AnyTown NJ
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
On my 71 they are also attached directly to the header bar. When I had my car NCRS judged they gigged me 2 points for the missing bracket even though there wasn't a line item for it. 