ticking sound from my m20b28

[aceifty]

hi all i had done a m20b28 strocker last year and the car ran perfect until the head cracked, iv replaced the head with all the bits from the old one also iv put on a bbtb this time. after putting the engine back together and starting it there is a ticking sound coming from it which is doing my head in, could the ticking (knocking) sound be because of the bbtb or is it something else? i now its not the bottom end as it was built with all new bits last year and has only done about 2K. hopefully someone on here will have a better idea than me.

[Bristol_Jer]

Not just the exhaust manifold blowing?

[aceifty]

Not just the exhaust manifold blowing?

the manifold is fine, but the exhaust is blowing by the centre.

[jmc330i]

Is it a ticking or a knocking? Is it constant, get worse or faster with revs, when its hot or cold? A bit more description of the 'noise' might help those in the know diagnose the issue

[aceifty]

Is it a ticking or a knocking? Is it constant, get worse or faster with revs, when its hot or cold? A bit more description of the 'noise' might help those in the know diagnose the issue

it sounds like a ticking sound and is there when hot or cold and does gets faster as the go up revs

[aceifty]

bump

[Brianmoooore]

Hold the engine at about 2500 RPM, and turn the ignition switch off. Does the ticking stop instantly, or continue until the engine stops turning?

[aceifty]

just done a compression test and all bores read 150psi

[aceifty]

Hold the engine at about 2500 RPM, and turn the ignition switch off. Does the ticking stop instantly, or continue until the engine stops turning?

will check now and get back

[aceifty]

Hold the engine at about 2500 RPM, and turn the ignition switch off. Does the ticking stop instantly, or continue until the engine stops turning?

just checked and the ticking continues until the engine stops.

could it be because of the blowing exhaust which is bad or me adding a bbtb

[aceifty]

i did adjust the vales to 0.25mm on a stone cold engine, if this helps anyone

[e301988325i]

First thing is to check the valve clearances if you don't know how there's a great writeup in the wiki, the test Brian advised eliminates the injectors.

[aceifty]

First thing is to check the valve clearances if you don't know how there's a great writeup in the wiki, the test Brian advised eliminates the injectors.

i done the valves first at 0.25mm on a cold engine, iv also done what brian said and the tickin stops when the engine stops