I did the balance shaft on my dreaded BLB last year, and in hindsight I probably should have done the chain/tensioner at the same time! . . Hey-ho ♂️ Anyway, fast-forward a year and I've metallic tinkering (not quite a rattle) coming from that area... Which I'm guessing is the chain/tensioner! ♂️ The question being, has anyone used these eBay kits? Some as cheap as £27: https://www.ebay.co.uk/itm/OIL-PUMP...-BPW-BNA-BRF-BLB-BRE-03g103333e-/362701017589 Would be keen to hear anyone's real life experiences on these or recommendations of any other aftermarket kit for that matter... Comments from "just buy OEM" crew are strictly prohibited unless backed up with real life experience. Cheers chaps!