Correct Spring/Pinch Clamps - Early Build 1970 GS

Have some tire seal paste on hand for those spring ring clamps you are using on your heater hoses. They may leak. The special pliers to grip them comes in handy.

 

I thought it was 3/4 and 5/8. I think they are color coded and I can check this afternoon. I'm basing this on what I used on my 69 using the Poston clamps. PS. Mine don't leak a bit.

 

Yes

 

Ok Brett, here's the deal on the Corbin clamps and leaking. They were/are color coded. The real problem as somebody else mentioned is the hose types available now. There are maybe 4-5 different types of hose around. There are maybe 3-4 types that are "ribbed" similar to original. Last I knew, there were no types of hose available exactly like original. You see the red hose's, those are thick, not ribbed and HD hose. Great stuff but ugly! Then there are ribbed thick and thin rubber hoses around. You want the thick ribbed rubber hoses. In the assembly manual it tells you the exact length of the hoses. The absolute worst stuff is vinyl ribbed hose. Jason has mentioned this crap before for vacuum hoses. It's like vinyl, not rubber, thin, doesn't last or hold pressure well. Like Jim says it can't hurt to use sealer. Personally, I don't use any sealer. That's because I take stuff apart a lot, I don't want to cut my exact length hoses and ruin them!

 

Doesn't Year One have them in the catalog? I'll let you know if the top or bottom is the small one when I get home.

 

The hoses are 3/4" + 5/8", so you will need 2 clamps of each size. That would be for 1970, non AC car, I don't think the plant matters. Right around that time GM was moving to tower clamps (Wittecks) on the heater hoses. A 1970 AC car used some tower heater hose clamps. Later they went to all tower type clamps.
You should get a pair of Corbin clamp pliers. At one time they were very common, you could walk into Sears and get a nice pair. There are a LOT of different types, most of them I have tried before, or own. You can use Vise-Grips, Channelocks, or regular pliers. But a pair of the real deals are much easier to use. My favorites you can use straight up and down or sideways. They are similar to these. https://www.ebay.com/itm/Wilde-Tool...254936?hash=item20e90334d8:g:o~oAAOSwGzlTxGuR
If you go to a swap meet or flea market, you can usually find a rusty pair for $2-5.00.

 

This Olds site may help. Sometimes it helps to look at the other GM sites. They used the same parts when it came to hardware.

http://www.fusickautomotiveproducts.com/prodinfo.asp?number=HC58

http://www.fusickautomotiveproducts.com/prodinfo.asp?number=HC59

 

Amazon has these pliers and they work great. https://www.amazon.com/Tools-VISE-GRIP-Pliers-8-inch-1773627/dp/B004WIWB3U

Brett, if you need a couple, I can send you a pair for a great price $0.00 shipped.

 

Brett, Where did you end up getting the clamps. Richie