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Thank you for the help. It is a 63 and sounds like connecting the hoses may solve any issues?
Dave, Your 63 does not have a Comfort Control System or Thermal Vacuum Valve so you can ignore the prior replies regarding the 64 system.
That is the Water Control Valve in your diagram circled. It allows hot water to enter the heater core when in "heat" mode, and blocks hot water from entering when heater not on. You can see it in the 1963 Shop Manual on page 13-1, Fig 13-1.
Your Picture is low res and I cannot tell where the other end of the vacuum hoses originate or the color striping on them which is key to using the 1963 Cadillac Shop Manual to understand where they connect. I am also not sure if this is an AC equipped car or non-AC. That will make a big difference. You can see the vacuum line set-up for Non-AC cars in the shop manual on Page 13-2, Fig 13-3; and for AC equipped cars on page 13-18, Fig 13-16.
If you do not have a shop manual that should be your very next purchase as it will answer many of these basic questions. If you don't have a shop manual you can find repros in print and cd, and originals on eBay, Etc. I have an excellent original 1963 Shop Manual for $60 ($45 as a Chapter Member).
Travis J. Hensley Online
Started by Dave Fehrle in 1963/64 Cadillac Specific Discussion. Last reply by Patrick Westphal yesterday. 2 Replies 0 Likes
So I have been having problems with my brake lights. At first I thought it was both sides and turns out it is only the drivers side. Also, I thought the blinker worked and it didn’t and turned out…Continue
Started by Phillip Hill in 1963/64 Cadillac Specific Discussion. Last reply by Dennis P. DiBari on Tuesday. 11 Replies 0 Likes
Hi everyone im currently restoring my my front grill due to some previous clown painting it with silver frost paint and doing a dodgy job I would like to know what parts of the grill are anodised.it…Continue
Started by Nile Bolen in 1963/64 Cadillac Specific Discussion. Last reply by Dennis P. DiBari on Monday. 4 Replies 0 Likes
I checked the Help page and did a search on the site but didn't see any subjects on steering play/slack. Since I had someone complete a front end rebuild (Kanter kit, all the control arm bushings,…Continue
Started by Logan Robb in 1963/64 Cadillac Specific Discussion. Last reply by Michael Vogler on Monday. 12 Replies 0 Likes
Late in the evenings, I wonder about things I will probably never do as I am not that crazy. However, I know someone out there has tried it or wanted it bad enough they have done it. My 64 Fltwd did…Continue
Posted by SK on June 2, 2025 at 2:20pm 2 Comments 0 Likes
Could someone post front and back photos of the 1963 right-hand kick panel with A/C?
My car didn’t come with the original kick panels, so it's a bit of a mystery to me how I should cut the backing board and carpet to fit around the A/C.
Many thanks,
-Samu
Posted by Chase on March 12, 2025 at 2:05pm 14 Comments 1 Like
Hey guys,
I have installed the same Edelbrock carb and have done everything the same as Jason’s carb and intake project. In the spring and summer months the car starts, runs and idles great! In the fall and winter months on a cold start, the car starts awful and wants to die until it warms up. I have to keep my foot on the throttle until it warms up or it will idle just terrible and try to die. Once it’s warm, it runs fantastic! Whats going on here? I was thinking of removing the…
ContinuePosted by Ray Schick on August 22, 2024 at 6:25pm 2 Comments 0 Likes
I bought this seat material thinking that it’s…
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