305 V8 radiator drain plug
#1
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Car: 1984 Sport Coupe
Engine: 305
Transmission: 700r4
305 V8 radiator drain plug
I want to flush out the very old coolant in my 84 Camaro. I think the radiator is the original one and it doesn't leak at all. I don't see any pepcock on the radiator so I can drain it. I crawled under the car and did see a "round dial" (I think) near the bottom of the radiator but it wouldn't turn. Is that what should open so I can drain the radiator? Sorry for what probably is a stupid question to you guys but I need your expertise.
#2
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Re: 305 V8 radiator drain plug
If it's the plastic tank radiator, there's a **** at the passenger's lower corner of the radiator. Turn the **** counter clockwise and it should start draining. Sometimes they can get blocked or jammed up. The valve can be removed from the radiator and replaced if it breaks.
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Car: 1984 Sport Coupe
Engine: 305
Transmission: 700r4
Re: 305 V8 radiator drain plug
If it's the plastic tank radiator, there's a **** at the passenger's lower corner of the radiator. Turn the **** counter clockwise and it should start draining. Sometimes they can get blocked or jammed up. The valve can be removed from the radiator and replaced if it breaks.
Also, I was surprised to find out the radiator was plastic. Was that a factory option or did the car originally have a metal radiator?
#4
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Re: 305 V8 radiator drain plug
The end tanks on most stock thirdgen radiators are plastic. Aside from the plastic getting brittle with age and heat cycles, they're just fine.
The **** will only unscrew so far, the end is barbed and snaps into the nut, and the nut snaps into the radiator tank. Dorman offers a replacement with the valve and nut, seals, etc. Should be able to find one at most local chain stores.
The **** will only unscrew so far, the end is barbed and snaps into the nut, and the nut snaps into the radiator tank. Dorman offers a replacement with the valve and nut, seals, etc. Should be able to find one at most local chain stores.
Last edited by Drew; 09-03-2018 at 11:15 PM.
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Car: 1984 Sport Coupe
Engine: 305
Transmission: 700r4
Re: 305 V8 radiator drain plug
The end tanks on most stock thirdgen radiators are plastic. Aside from the plastic getting brittle with age and heat cycles, they're just fine.
The **** will only unscrew so far, the end is barbed and snaps into the nut, and the nut snaps into the radiator tank. Dorman offers a replacement with the valve and nut, seals, etc. Should be able to find one at most local chain stores.
https://www.amazon.com/gp/product/B0...=ATVPDKIKX0DER
The **** will only unscrew so far, the end is barbed and snaps into the nut, and the nut snaps into the radiator tank. Dorman offers a replacement with the valve and nut, seals, etc. Should be able to find one at most local chain stores.
https://www.amazon.com/gp/product/B0...=ATVPDKIKX0DER
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