i need to rotate the turbo housings on my turbo thru 180 degrees as its going from bottom to top mount. Is there a knack? the compressor housing has 3 clamps around the outside, but the exh housing has two half moon rings and 4 bolts. ive slackened the bolts and the exh housing doesnt seem to want to turn relative to the core? dont want to use brute force and ignorance just yet
what am i doing wrong?