Hi webby48. Yeah I had a bad rattle on cold mornings on start up. My old chain did have wear but it was more stretched than anything. Before you go changing it do this test first. Start it up and then get your garden hose and spray the belts with it at idle and see if you get a noise that sounds like the chain hitting the chain cover. if you do change all your belts. The chain conversion is well worth it if you plan to keep it. best insurance I think. The kit has been upgraded to now and is the best you will get.