How to clean the Intercooler on Your Supercharged Mini Cooper S
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Because the Mini Cooper crankcase vents into the intake system, crankcase vapors leave oil deposits in the intercooler; this film of oil interferes with the transfer of charge air heat. To keep the charge air cooler performing at high levels the Super Charged Mini Cooper’s intercooler should be cleaned periodically. Acetone is a relatively safe solvent that leaves no residues and is an excellent de-greaser. Performing a “wash” of the intercooler’s insides, requires some way of covering the end tank openings; one way is to use latex gloves folded over the openings with rubber bands securing the seal. I use OEM end tank plugs and plastic bags to close off the ends.
To clean: cover one end and poor a liberal amount of Acetone in the intercooler, cover the other end and rock the IC in all direction to give the internals a good wash, drain and rinse with more Acetone.
Compressed air can be used to accelerate the drying process.
The end tank bellows accumulate oil and should be cleaned also. Simple Green is a safe degreaser on rubber products (so is non-alkaline soap). A toothbrush will aid cleaning.
Before putting the IC and bellows on the vehicle, clean the input and output duct edges with non-chlorinated brake cleaner or Acetone. The bellows will seal best on completely oil free surfaces.
Original Post from the Lone Star Mini Club by k-huevo at the Lone Star Mini Club
Also check out the performance parts site www.werkinmini.com!
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