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03-18-2019, 12:58 AM
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#1 |
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Registered User
Join Date: Apr 2010
Location: Tucson, Arizona
Posts: 157
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Radiator drain plug HELP!!!
Took my ‘70 out today around to the gas station to fill her up and air up tires. As I waited for air compressor to be freed up, I got out and popped the hood to look for any leaks and boom! My drain plug blows out. I went to autozone around corner to grab a drain plug, they give me a 1/8 plug, too small. I go return it and the 3/8 is a special order item. So I grab a 1/4 drain plug and it’s too big! I looked up the size/specs and shows that 1/4 drain plug should be the one. Am I missing something? Any input is appreciated....
__________________
 1970 CST/10 LWB 350 1984 Blazer
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03-18-2019, 11:10 AM
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#2 |
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Senior Member
 
Join Date: Nov 2018
Location: Waterford California
Posts: 2,377
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Re: Radiator drain plug HELP!!!
I'd have a hunch that there are lot's of radiator shops in Arizona. I would try them for a correct fit.
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03-18-2019, 11:30 AM
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#3 |
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Who Changed This?
Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,090
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Re: Radiator drain plug HELP!!!
Is the plug you got straight pipe or tapered pipe? Maybe they sold you a straight pipe version?
__________________
~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
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03-20-2019, 10:04 PM
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#4 |
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Registered User
Join Date: Dec 2009
Location: El Dorado Ca
Posts: 3,374
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Re: Radiator drain plug HELP!!!
it should be a 1/4"NPT pipe plug,(National pipe threads) it is physically bigger than 1/4 " and has tapered threads,It should be brass, I usually install a 1/4 " petcock in there so you can just loosen a knob and drain the radiator that way, it gives you control ,https://shop.advanceautoparts.com/p/...1106/5701643-P
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