migti 0 Posted November 28, 2006 hi all was out in mates mi the other nite, all of a sudden started chapping v loud from top end, i know recently he timed it up ,bent some valves, rebuilt it with new valves ect Was just thinking could one of the bronze guides move? is v chappy not like a lifter Any help appreciated! cheers Share this post Link to post Share on other sites
veloce200 3 Posted November 28, 2006 lifter pumped up? causing big clearance and possibly more bent valves -over-revved? Share this post Link to post Share on other sites
maxi 36 1 Cars Posted November 28, 2006 £10 says it has inducted one of the throttle butterfly screws, they have a habit of doing this. Take the TB to AFM pipe off and look at the butterflies in the TB, if a screw is missing I would say thats what is tapping around destroying the piston, valves, and everything else in the particular cylinder. Maxi Share this post Link to post Share on other sites
aeinstein 0 Posted November 28, 2006 £10 says it has inducted one of the throttle butterfly screws, they have a habit of doing this. Take the TB to AFM pipe off and look at the butterflies in the TB, if a screw is missing I would say thats what is tapping around destroying the piston, valves, and everything else in the particular cylinder.Maxi ^^^ agree with this. pal of mine had this problem, advised to get bottom end rebuilt, still clattering, top end rebuilt, found throttle butterfly screw happily bashing up and down. with a wallet £1k+ lighter, and the problems solved! 's ok though, engine should be good for another 100k, always look on the bright side! al Share this post Link to post Share on other sites
boombang 2 Posted November 28, 2006 (edited) As above - I worked at a Pug specialist, lad brought his car in on a trailer saying bottom end had gone. Didn't risk starting it and rebuilt bottom end but everything looked pretty good. He didn't want head off as couldn't afford it but when back together it started tapping we stripped down to find the bolt in there. Edited November 28, 2006 by boombang Share this post Link to post Share on other sites
aeinstein 0 Posted November 29, 2006 As above - I worked at a Pug specialist, lad brought his car in on a trailer saying bottom end had gone. Didn't risk starting it and rebuilt bottom end but everything looked pretty good. He didn't want head off as couldn't afford it but when back together it started tapping we stripped down to find the bolt in there. either this happens to other people as well, or you and i are talking about the same car. graphite 'f' reg from N.E. England? al Share this post Link to post Share on other sites
migti 0 Posted December 1, 2006 Just to update on this one. All the butterfly screws still there, further strip required i think!! Cheers Share this post Link to post Share on other sites
maxi 36 1 Cars Posted December 2, 2006 Mine also inducted a piece of metal going up the M3 on the way back from Falmouth......drove it home on 3 cylinders. I thought it was just a plug or lead had f***ed up, I replaced them, started it up and it rattled like hell..... The drive home had got the metal so hot it had stuck to the combustion chamber or top of the piston, the time it took to change bits was enough for it to cool down and become unstuck. Things do get through air filters. Maxi Share this post Link to post Share on other sites
