James_m 0 Posted September 20, 2006 Well, the story goes, my mate bought a low mileage 35k 306 S16 maybe a year back with a horrible knocking bottom end, he then swopped the engine from another S16 he had already broken for parts and that was that. A year down the line he's donated it to me as i need the XU10 sump and some working oil spray bars We took it round to my place yesterday and upon taking the head off we have found this as you can see various parts of the piston are totally clean as if someones skimmed metal away revealing the fresh stuff underneath. Other 3 pistons are normal, didnt look to closely at the head, but it appeared to be fine other than an obviously far richer mixture on this cylinder(fouled plug) All will be revealed when i open the bottom end probably tomorrow, but i cant work this one out. only thing i can think of is, maybe the rod has snapped and its been impacting on the head? Btw cant remember if it ran on 3 when it was in the car, it was totally gutless though, and the knock was horrific, so quite possibly. Any bets on whats caused this? Share this post Link to post Share on other sites
dee205 3 Posted September 20, 2006 Possably loose rob bolts on the piston or excess wear giving it a bit too much free movement. That piston could have been flapping about like a sausage up an alleyway! Damien Share this post Link to post Share on other sites
James_m 0 Posted September 27, 2006 Well for anyone intrested..... Opened it up today, and hear are the findings I think its fair to say it has spun a shell few more pics online.pics Share this post Link to post Share on other sites
