ticking noise

[daneilhussain]

hi ya guys my 30 325 making a loud ticking noise and switchs of on cold start and runs lumpy on idle for a few mins cold any ideas cheers dan

[iceox]

tappets? can adjust them but ive been told its usualy down to a worn cam

[Steve]

From the wiki

Ticking Noise
It's not uncommon for engines to develop a ticking noise over time, and this is usually attributed to badly-adjusted rockers in the head. However, after playing around with feeler gauges and changing the oil, the noise is still there; this usually means one of the manifold studs has broken. It may not be visible.

[Brianmoooore]

Check that the exhaust manifold nuts are all there, and actually attached to something. A blowing exhaust gasket can sound like a tick.