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05-22-2025, 03:00 PM
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#1 |
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Registered User
Join Date: Jan 2025
Location: Modesto,CA
Posts: 45
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Radiator plug leak
Hey all. Finally working out some leaks on my truck and thought I’d get lucky on this one and would be resolved but she is a stubborn one.
On the driver side of the radiator this little port has a plug and I took it out and put sealer on it and still wants to leak. Anyone have a way to stop this? Maybe a plug or wonder if a radiator drain plug would fit I know it looks ugly from the pic |
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05-22-2025, 03:03 PM
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#2 |
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Registered User
Join Date: Jan 2025
Location: Modesto,CA
Posts: 45
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Re: Radiator plug leak
Pic
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05-22-2025, 07:47 PM
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#3 |
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Ram-A-Lam-A-Ding-Dong
 
Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 11,903
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Re: Radiator plug leak
No offense, but I can't tell what I'm looking at in that picture.
__________________
~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
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05-22-2025, 09:31 PM
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#4 |
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Registered User
Join Date: Jan 2025
Location: Modesto,CA
Posts: 45
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Re: Radiator plug leak
Sorry about that.
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05-22-2025, 09:32 PM
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#5 |
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Registered User
Join Date: Mar 2019
Location: San Ramon, CA
Posts: 347
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Re: Radiator plug leak
Is it a threaded hole?
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05-22-2025, 11:16 PM
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#6 |
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Registered User
Join Date: Jan 2025
Location: Modesto,CA
Posts: 45
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Re: Radiator plug leak
It is. It’s a M10x1.0 plug that’s in it. I just took it out and sized it.
I’m going to find a bolt and try that |
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05-23-2025, 08:34 AM
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#7 |
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20' Daredevil (Ret)
Join Date: May 2003
Location: Jefferson State
Posts: 14,020
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Re: Radiator plug leak
Whether you use that plug or a bolt, try teflon paste on the threads, then wrap the threads with teflon tape. I learned that from a plumber. Good luck.
__________________
- Mike - 1972 K20 LWB 350/350/205 RIP El Jay |
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05-23-2025, 08:57 AM
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#8 | |
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Registered User
Join Date: Mar 2019
Location: San Ramon, CA
Posts: 347
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Re: Radiator plug leak
Quote:
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05-23-2025, 04:36 PM
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#9 |
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Registered User
Join Date: Jan 2025
Location: Modesto,CA
Posts: 45
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Re: Radiator plug leak
Thank you both!
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