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-   -   Coolant overflow bottle ideas (https://67-72chevytrucks.com/vboard/showthread.php?t=849282)

howzzzit 12-17-2023 06:09 PM

Re: Coolant overflow bottle ideas
 
Quote:

Originally Posted by Sheepdip (Post 9267500)
My hose runs on top between the radiator support panel and the radiator. As long there are no leaks and the overflow bottle has coolant in it, it will suck it back.

Thanks for the pic. I'll check it out.

'68OrangeSunshine 12-17-2023 06:20 PM

Re: Coolant overflow bottle ideas
 
1 Attachment(s)
I have the Camaro/Nova style. It tucks in between the passenger side front fender and the battery box. But then it's not in front of the radiator bulkhead. It is tucked away, though.

72SB 12-18-2023 01:55 PM

Re: Coolant overflow bottle ideas
 
^^^, I have that OER tank in my 67 Camaro. The tank is for a 75 Nova.

The only reason I didn't use it in my 72 (post 15) is because charcoal canister is there so used a Dorman one on core support.

72SB 12-18-2023 04:48 PM

Re: Coolant overflow bottle ideas
 
Quote:

Originally Posted by 1970cstblazer (Post 9267109)
Do you have a pic of the front of your truck with the hood shut? I am curious if that tank is easily seen through the grille.

Don't have a pic nor the truck anymore. You could audition something (piece of paper) in the area I put the tank to see if you can see it through grill. If so, it was never a concern I had.

howzzzit 12-18-2023 05:52 PM

Re: Coolant overflow bottle ideas
 
Quote:

Originally Posted by 72SB (Post 9266962)
I put the Dorman in my 72. Bought it on Amazon. Use one existing hole and drilled another. used a 1/2" spacer for the offset in core support between holes

Anyone know the hose barb size for the Dorman 630-001? I cant find it and they definitely don't answer the phone.

72SB 12-19-2023 02:07 PM

Re: Coolant overflow bottle ideas
 
Quote:

Originally Posted by howzzzit (Post 9267873)
Anyone know the hose barb size for the Dorman 630-001? I cant find it and they definitely don't answer the phone.

I just used the hose from radiator that was on the truck that otherwise was open and just used that on the Dorman barb. Put it through one of the holes, large, that was already in the core support

MikeB 12-19-2023 06:19 PM

Re: Coolant overflow bottle ideas
 
3 Attachment(s)
OER 551448 tank with Dorman 82590 cap. Had to use an "L" bracket to support the bottom.

1970cstblazer 12-20-2023 08:52 AM

Re: Coolant overflow bottle ideas
 
The 551448 tank looks like the best option on these.

MikeB 12-20-2023 12:29 PM

Re: Coolant overflow bottle ideas
 
Quote:

Originally Posted by 1970cstblazer (Post 9268280)
The 551448 tank looks like the best option on these.

Just keep in mind that I had to remove the battery tray (kind of a PITA) and then use an L bracket as a base for the tank.

The silicon hose I used is really nice. It's flexible and is fairly thick-walled. Rated to 460 degrees F. 3/8" ID x 9/16" OD.

https://www.amazon.com/gp/product/B0...e?ie=UTF8&th=1

Ended up using some Dorman 13400 hose clamps I found at Autozone, but they tend to deform because they are not spring steel, like OE. Pretty sad, this imported crap.

1970cstblazer 12-20-2023 12:36 PM

Re: Coolant overflow bottle ideas
 
Thank you for the information.

Only change I will make is using the coolant cap specified for a 1978-79 Nova, which is GM 371978. I think it looks more period correct than the later vented unit.

https://i.ebayimg.com/images/g/EgoAA...py/s-l1600.jpg

'68OrangeSunshine 12-20-2023 04:01 PM

Re: Coolant overflow bottle ideas
 
Quote:

Originally Posted by MikeB (Post 9268341)
Just keep in mind that I had to remove the battery tray (kind of a PITA) and then use an L bracket as a base for the tank.

The silicon hose I used is really nice. It's flexible and is fairly thick-walled. Rated to 460 degrees F. 3/8" ID x 9/16" OD.

https://www.amazon.com/gp/product/B0...e?ie=UTF8&th=1

Ended up using some Dorman 13400 hose clamps I found at Autozone, but they tend to deform because they are not spring steel, like OE. Pretty sad, this imported crap.

I didn't find the need for an L-bracket. The heavy end rests on the fender skirt and follows its slope.
[But, I totally agree on Imported Crap.]

MikeB 12-20-2023 04:38 PM

Re: Coolant overflow bottle ideas
 
1 Attachment(s)
Quote:

Originally Posted by '68OrangeSunshine (Post 9268388)
I didn't find the need for an L-bracket. The heavy end rests on the fender skirt and follows its slope.
[But, I totally agree on Imported Crap.]

I couldn't go behind the indentation in the fender w/o moving my fuse holder. And I couldn't do that because the red wire wasn't long enough. Also, I was able to use a hole that was already there.

I think I referenced your photo a couple of times when doing the job! Thanks.

Ironhorse 12-20-2023 04:59 PM

Re: Coolant overflow bottle ideas
 
1 Attachment(s)
For my recovery tank I used a stock w/s washer bottle& bracket. Mounted to P/S fender aft of the battery, run the hose to the radiator overflow vent. Pickup hose in the washer bottle works fine for the return line. Went with a closed system cap and keep it about 1/4 full when cold. Not very fancy and shiny but looks like it belongs there from GM

ZEKE68 12-20-2023 10:52 PM

Re: Coolant overflow bottle ideas
 
2 Attachment(s)
I used an overflow bottle from a Mitsubishi Eclipse. Wish I could remember which year it was from.


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