K24 Vs K26 - make long story longer... :)

[Christo Atanasov]

After reading lot of topics about K26 Vs K24 dimensions, and after disassemble my K26 few hours ago I feel little bit confused.
My K26 is form '85 Audi 200 (european KG engine - 2.1Turbo 182HP), watter/oil turbo. I doesn't like it much, because it spools about 2700-3000rpm, and this is my daily car.
This evening I took some mesurements of this K26 and another K24 7000 from '89 Audi 200 20v that I get from a friend for parts (broken shaft).. And what confuse me - every one say that inducer of K24 is bigger than K26, but in my case they are same size.. lower part of compressor wheel of my K26 is about 5-6mm larger than compressor of K24, but in upper part they are completly same size.

Also I have completly blocked watter feed (one from engine block to turbocharger).. is there any way to clean this pipe or it is strongly recomended to replace it with new one?