help blue smoke

took my car into today which is a ford escort 1.6lx 16valve n reg 1995 for an mot. Of course it failed on its suspensions which wasn't a surpirse as i was bouncing up and down the road. The problem is that it failed when reving up on excessive blue smoke but the readings from the emssions test that they weren't far off been a pass. Another little bit of information is that it had been sat around for 6 months been started every day but not been driven. Could it be that one of the valves has got stuck or is the dreaded piston ring there is no miss firing only in the morining

The best time to check a vehicle for emissions testing is when the vehicle is nice and hot! If it is actually burning oil, then you have piston ring or valve seal issues.

I'd say that since it had been sitting for so long and not allowed to warm up under power, the piston rings are not seated in. I don't know what you blokes over there in the U.K. use for oil additives, but here in the states we use STP oil thickener to solve oil burning. Change your oil and take it on a long drive on the highway and get those compression rings seated back in. Keep the engine moving at a quick rate and don't push it too hard and the rings will seat back in.

cheers for the advice but i have used a engine flush today and put the correct grade of oil in which is 5/30 there now seems to be a tapping noise and hardly any smoke coming out of it so it might have been a stuck valve

The tapping is probably a stuck lifter. It got engine flush inside of it. It will clear up as you drive the car.