mini sell bottom bolt not expensive, when your in there ask them about the later spec tensioner well worth fitting one. below pic shows the difference between the later and early tenisoners, yes must be changed 40nm plus 120 degrees stretch, cam bolts 20nm +90 +90 ie 180 in total . you will need a open ended think 27mm spanner to hold camshafts while doing them up. must use a dummy tensioner to set chain timing only mimic the amount of force on this tool as per the spring tension would do to it, i use fingers to turn the thread on dummy tensioner to preset it, you will need two 300mm rods same length i use brass 7mm ones off ebay, you drop these these in to the number 1 and number 2 and when both same height the locking pins for crankshaft will be near this point,, can be a proper pain to get pin in, also when set timing locks before strip down set the cams with the writing on them at top etc, good luckHi, new member here. I am about to attempt replacing the cam chain on a 1.4 N12 Mini engine. I have the cam chain kit and both VVT cam gears. i do have the cheap chineesium cam locking kit and have read they are not great so will see!
My question is that the chain kit includes a new crank gear but not a new bolt. Can the existing crank bolt be reused? If not where can I get a new one, a quick search on the net has not come up with any results. Many thanks.