C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

OIL Cooler cleaning.

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Old May 23, 2008 | 10:27 AM
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Default OIL Cooler cleaning.

'93 with 75,000 miles, LT1 Auto. No mods New MSD Opti, coil, ignition mod., plugs, wires, about 100 miles ago.

I was putting a new Air Dam on last weekend and looked at the front of the oil cooler and radiator. Anyway this thing is "gummed" up solidly about 4 inches on each side and up about half way. Probably not cooling as well as it should.

So question: with out doing any damage to anything can I take a power washer to it? I'd to have it cleaned out just to have better air flow.
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Old May 23, 2008 | 10:39 AM
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Here are some instructions on how to clean a C4 radiator. FYI
Attached Files
File Type: doc
C4 Radiator Cleaning.doc (161.5 KB, 133 views)

Last edited by pmihaltian; May 23, 2008 at 07:50 PM. Reason: clarity
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Old May 23, 2008 | 10:44 AM
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Thank you very much, very helpful. I guess the power washer is to much.
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Old May 23, 2008 | 10:51 AM
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A gentle degreaser chemical with a soft bristle brush works well. With your thumb over the hose end spray from the back side of the radiator forward, to flush the gunk off. Pretty easy project.
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Old May 23, 2008 | 03:49 PM
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I bought this gizmo from Service Champ...it is basically a brass wand that hooks to a garden hose and has a fitting on the end that sprays water at a 90 degree angle from the wand and at a flat stream about 30 degrees across. It is made to clean out A/C condensors and radiators....WORKS LIKE A DREAM. I thought mine looked clean until I sprayed it out and could not believe the crap that fell out. On the highway in 80 to 85 degree sun at 75 mph, my coolant never got over 190, even with A/C on. I have a 180 thermostat.

I have not looked at any parts places but would gladly get you one and ship it to you for my cost.
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