TOMMY_TURBO

took the cosworth out today and it has just started to jump out of 1st and clutch is slipping abit not to much to worry about antil it jumped out of gear on a junction so i got anoyed and thrashed her abit and now the engine makes a viabrating/rattleing noise at about 3500rmp antil 4500rpm goin up the revs and down the revs now im starting to think this is the bottom end

Harris.

££££

TOMMY_TURBO

started the car today and there is no rattleing/viabrateing it was only very slight noise just i used to own a ca18det that blow bottom ends constant so im always listening out for any noises so im now considering just putting new shells in before any serious damage can happen

m_nettleship

explain, new shells in???

pani_k

iTrader: (1)

I wouldn't jump the gun too early mate this sounds more like something resonating at that frequency if it is only doing in in between that RPM range. More than likely something has worked its way loose or rubbing against something causing the vibrations. Bottom end knock would be a lot more consistent.

david 100

Had the same problem with the wifes freelander and it was the crankshaft pully.

adam151082

I agree with this chap
Get someone to rev it and stick your head under the bonnet.

langer

iTrader: (1)

Sounds daft but check the water pump pulley bolts when I first got my cossy many moons ago it had lost two out and the other two were loose causing a vibration and a knock.

TOMMY_TURBO

sorry didnt update it defo aint bottom end it was sweet the next day but i founds the exhaust clamp was loose so could have been that or i thinking when gearbox oil gets hot its making the noise