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05-09-2023, 06:40 PM | #1 |
Registered User
Join Date: Apr 2013
Location: Austin, TX
Posts: 592
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Why do I keep destroying aluminum radiators?!?
My truck is a 1972 C20 Suburban with an iron block 6.0L LS swap. I've been running Entropy's aluminum, LS swap radiator since I built the truck 10 years ago. My third radiator, which is just under 2 years old, started leaking from the core again today.....I'm assuming due to electrolysis and the aluminum welds failing.
I'm at a loss at this point. The radiator sits on rubber isolators but it has a grounding strap from the aluminum body to the frame of the truck, as well as a sacrificial zinc anode that is grounded directly to the battery per Entropy's instructions. The motor is grounded to the frame with a 1 inch braided grounding strap and the battery is grounded to the engine block with a 0 AWG cable. Any thoughts or insight would be greatly appreciated. I've never had a problem like this before running an aluminum radiator. Thanks!
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1972 C20 Suburban 1964 Corvette Coupe 1997 Lexus LX450 |
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