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Username Post: Radiator        (Topic#373512)
J C 
Senior Member
Posts: 610

Loc: Orange Co. Calif
Reg: 04-17-04
07-25-23 04:24 PM - Post#2860735    

SBC stock. After sitting for years the radiator appears to have white corrosion at the ends of the tubes inside the radiator. It does not seem to cause any problems but the temp goes to 210 but I think a 180 thermostat is in it. Not sure. Anyway is there a mild cleaner that won't distroy the heater core that might work. I've been told baking soda but I don't drive it much so I doubt it would work well. Thought I might just pull the rad and have it boiled out. Any suggestion?

69RSZ28 71 Chevelle 79 Silverado 24K mi.


 


Tony1963 
Frequent Contributor
Posts: 2448

Loc: Orlando Florida
Reg: 07-09-18
07-27-23 01:37 AM - Post#2860774    
    In response to J C

You can try filling the radiator (off the vehicle) with white vinegar for about a week. If those deposits are lime from water, they will dissolve. The vinegar may also dissolve the other type of deposits.

You can also find an old-time radiator shop that will unsolder the end tanks and rod out the radiator. It used to be cheap to get that done, but I'd think today you'd pay more than the cost of a replacement radiator.

I would not spend more than the cost of the white vinegar. After that, I'd replace it.

People fear change because it threatens what they know, or what they claim to know.


 
J C 
Senior Member
Posts: 610

Loc: Orange Co. Calif
Reg: 04-17-04
09-16-23 03:11 PM - Post#2862598    
    In response to Tony1963

Thanks. I try the vinegar. I know it cleans calcium
Labor in Calif for anything now is through the roof and the radiator will be ok after the soaking

69RSZ28 71 Chevelle 79 Silverado 24K mi.


 


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