went autosport show on sat spoke to top tech guy from burtons,did'nt really get ant further forward with this problem as,i told him that pistons where fowling & of a flat machined apperence not dished as chrissy boys he did really say that the pistons are the problem,but did say to take pistons out measure skirt so they can calculate comp ratio?????????

its got to be the pistons that are causing this problem,don't know what else it could be is there an issue of different con rods depening on age of engine,came from mondeo,escort????????

it is doing my head in now