Thanks for you response Ambermarine,
The best solution would be a replacement reconditioned unit fitted by a competent technichan, even if it is a stretch of the wallet at least you will have the confidence that the car is safe to drive.
I lost all confidence in these COMPETENT technicians a long, long time ago; parts not fitted correctly, service items missed, engine oil not changed at services, nuts and bolts missing, wheel nuts not tightened up properly, brake back plates left loose, heat shields not refitted after repair, welding not fused properly, sills damaged and tie rods bent by trolley jacks, timing belt changed only to snap thus trashing the engine 10 yds from the garage and a complete wheel, brake, hub assembly falling off while my wife was driving the car because the COMPETENT technician forgot to put the retaining nut on a new ball joint.
There is not a COMPETENT technician in the country that I trust to do a job as thoughally as I will do a job.
Sorry if this sounds like I'm having a go, I'm not, I just don't trust these people any more.
If you are a trained mechanic or technician and dont like what I have to say, dont wait for an apology from me, you need to ask that of others in your industry. They are the reason for my complete and utter distrust of so called trained technicians and mechanics.
Ill let you know how I get on.