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Old 10-12-2003, 05:09 PM   #1
Scrub
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Location: Sisters,Oregon USA
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Electrolosis eating heater core?

My buddy has a 94 burb and the heater cores just rot out of it. Both front and rear went out, so he bought a new one and it lasted 3 months. He took it back and they gave him a new one, but the guy told him an electrical short was eating the aluminum cores....
Anyone ever heard of such a thing? The battery has one of those battery buddy things that disconects the battery if there is any batery drain and it isn't going off, so I am doubting this story.

I'm thinking his water has something in it that is caustic. Can you get Non-aluminum heater cores? any advice?
Thanks in advance.
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Sisters, Oregon - Home of the Sisters Rodeo.
70 GMC 1,000,000 + miles
72 K-20 project, 456 Dana60 front, Corp14 rear w/locker, 265R19.5 tires 20-ply. Warn 12k winches both ends, Cross-over steering with raised tie-rod, Powerbox steering, 4500 watt 120-AC power, Air, Hydraulic aux power, 4 inch lift, 5000 lb air-bags both ends.
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Old 10-12-2003, 06:19 PM   #2
Scrub
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I am moving this to the discussion board. Oops
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Scrub
Sisters, Oregon - Home of the Sisters Rodeo.
70 GMC 1,000,000 + miles
72 K-20 project, 456 Dana60 front, Corp14 rear w/locker, 265R19.5 tires 20-ply. Warn 12k winches both ends, Cross-over steering with raised tie-rod, Powerbox steering, 4500 watt 120-AC power, Air, Hydraulic aux power, 4 inch lift, 5000 lb air-bags both ends.
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Old 10-12-2003, 08:21 PM   #3
oldsgmc
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Same thing happened to me. With aluminum radiators and heater cores combined with so much electronics you get electolisis. What I ended up doing is running purified or dionized water and so far no problems. You might have him check for grounding problems to the engine.
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Old 10-14-2003, 10:49 PM   #4
ThreeQuarter
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Read this thread:

http://67-72chevytrucks.com/vboard/s...threadid=42231

BTW, I am still running on the same heater core since I changed to pink/orange antifreeze (Dex-cool). And I didn't simply drain the system and fill with Dex-cool, I had a radiator shop flush the green stuff out first. And of course I used distilled water, too. Good luck!
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