All internals and casing is fine, it's just that exhaust side which has just burnt out, holes everywhere and a major patch that someone else has already done. I'm losing 1/2 of my exhaust from that side (blowing smoke everywhere) but out the exhaust stack. Appreciate your help!If the cartridge (the centre housing and rotating parts) is still in usable condition I wonder if it might be possible to get a turbine (hot side) housing along with the v-band clamp and just replace that.? It would require access to a Parts Manual, maybe OM can assist with some numbers.?