1963 Cooling Systems hoses

[Daniel S.]

Hello, thanks again for all of the insight I have been getting on this forum. I have a 63 SWC and an chancing the heater hoses. I have the bracket that bolts to the alternator which secures the hoses to the alternator. However, I don't have the bolt that secures the bracket. Do you know what size and thread this bolt should be? I have tried a few but they only screw in a few turns and don't feel right. I appreciate any insight that you can provide.
Thank you, Dan

[Bob R.]

Re: 1963 Cooling Systems hoses

I think that bolt is hex indented head self tapping 1/4 20. I'm sure all of the part vendors sell them try Paragon or Long Island Corvette.

[Donald A.]

Re: 1963 Cooling Systems hoses

I think standard 3/8 coarse thread. screws into exhaust manifold on my 340hp

[Rich P.]

Re: 1963 Cooling Systems hoses

gs bolt.jpgAs said 1/4-20 thread with a flat end and a self cutting notch in the tip, recessed head and typical headmarkings on originals are...E, 3 dots, circles, RBW, anchor and a few more. Also they used a tip with tapered threads and slits in four spots to cut threads.

[Bob R.]

Re: 1963 Cooling Systems hoses

The engine photo shown above did not route the heater hoses properly so don't follow that when installing the your hoses. The upper and lower hoses actually twist after leaving the heater box and before the surge tank connection. Sorry I don't have a photo of the installation.

[Michael G.]

Re: 1963 Cooling Systems hoses

Here's the routing:

Screen Shot 2014-10-24 at 1.40.53 PM.jpg

[Daniel S.]

Re: 1963 Cooling Systems hoses

Mike, thank you for posting this! It is perfect.
Dan

[Donald A.]

Re: 1963 Cooling Systems hoses

Before you throw me under the bus here is a pic from a bone stock 63 340. I did my car just like it.

[Bob R.]

Re: 1963 Cooling Systems hoses

Don
Don't take it too personal the man asked for the proper routing of the heater hose and the photo you had was not correct. Rather than let him do it wrong and find out at judging I thought I would point it out. The photo of the original car you had still may not have had the original hoses the way the factory installed them old doesn't mean original. If you look at the AIM you can see the proper routing.

[Donald A.]

Re: 1963 Cooling Systems hoses

OK,

Are you saying that the only difference is that one is over the other i.e. on top of the "tee" I see no other difference.

PS. Heading to Frisco now to Regional and will look at the cars there and take pics. Later

Also, I've heard of things in AIM that were not actually how it rolled off line.

Fun Stuff

One last thing, I was proud to just get to a point on my car that I was able to focus on a hose. Smile

[Joseph S.]

Re: 1963 Cooling Systems hoses

Dan and Don, Per the AIM, the small hose comes up and over the T fitting at the tank. Then before it goes through the bracket at the alternator it loops back under the larger hose. I hope this is clear enough in writing. Most believe that the routing in this configuration is to allow 1 hose to support the other hose. Joe

[Bob R.]

Re: 1963 Cooling Systems hoses

Yes the only difference is the lower hose twists around and over the upper hose. It might sound silly but if a judge spots it it would get a deduction. Its not easy to get a car correctly assembled and 63 is a very difficult year as there were lots of changes during the run. I do believe all 63's had the hose installed that way.

[Thomas S.]

Re: 1963 Cooling Systems hoses

Dan and Don, Per the AIM, the small hose comes up and over the T fitting at the tank. Then before it goes through the bracket at the alternator it loops back under the larger hose. I hope this is clear enough in writing. Most believe that the routing in this configuration is to allow 1 hose to support the other hose. Joe

Page 84 of Nolan Adams book as well as Edition 6, page 7 of the 63-64 JG does not show the smaller hose passing under the larger one when it goes through the clamp on the alternator bracket. Most photos clearly show the smaller hose passing under then over the tee but i've never,seen a good picture of the hoses passing through the clamp.

Am I missing something because, unlike the AIM, both of the publications I mentioned have clear illustrations with multiple views.