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1998 993 SAI port cleaning

Engine

Vehicle Information: Model: 993; Year: 1998; Body Type: Coupe; Total Mileage: 30K;

Hi Joel,I hate to keep beating a dead horse, but I couldn't find the info. buried in the previous letters.RE: The SAI ports. I have all the hardware off including the checkvalve, heat exchangers, et.al. But from what I have read there should be a clear passage from the checkvalve to the 1/4" ports on the side of the head. My actual ports seem to be free of carbon but I poured solvent into the cavity below the c-valve and after 2 days it has not gone anywhere....... Should it not pass through to the waiting cardboard on the floor? Do I have blocked passages somewhere up above? Any suggestions?The c-valve base was corroded and had lost perhaps 1/4 of it's original diameter. Thanks for your help. Bob

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