Question for those that do their own valve clearance checks. Hi all, about to do my first 4V clearance check, I've done a couple of 2V's before and didn't find it too difficult. On the 2V's when the clearances were out you could put new split colletts in and quite often it would bring the clearances back into spec, does the same apply to the 4V's? Also, I rang my local dealer to check that they had a good supply of shims just in case I need some and unbelievably they don't have a full shim set!!?? They order what shims you require and that usually takes around two weeks! Perhaps they keep their shim set for in house servicing only but that seems a bit mad, so, any suggestions for shim stockists around the midlands area, preferably west mids or Worcestershire. Cheers.