I could really do with someone local to Wellingborough Northants with a huge amount of knowledge on the vr6 engine as my brain is bein fried each day I look at it. Firstly there is blue smoke on overrun but I've just had the head rebuilt with new stem seals and the valves re-seated secondly before all this work the compression test was done and got the following results, 1-178psi 2-176 3-182 4-178 5-180 6-160, 185psi with oil Now I know that number 6 looks like the culprit for the smoke but it within the tolerance???? I will b doing another compression test at some point this week to determine