Tapping after the tappets have been adjusted

Sun Sep 17, 2006 4:09 pm

Hi All, i've adjusted my 320i m20 engine rockers to the spec (0.25mm wen cold) but there's still quite a loud fast tapping, also the cam seems ok no beddin in(there not lipped) Fuel Injector change< can they really make a big difference, and would i have to replace the lot or is there a way of cleaning and sortin the old 1s out,
i'm goin to check the exhaust manifold right now.... Just need's tightening or new gasket completely?

Any Advice Would Be Very Helpfull.. Thx

Sun Sep 17, 2006 4:13 pm

M20's do tick alot.

1. Tappets
2. Injectors are loud
3. exhaust blowing on cylinder #6

normaly you adjust the tappets, they quieten down so then you hear the injectors more....its just a vicious circle...

Sun Sep 17, 2006 7:48 pm

Worn cam follower?

Mon Sep 18, 2006 2:24 am

Srangely enough,you can reduce the noise (in the cabin ) quite noticeably by stuffing the void under the centre badge in the steering wheel full of "Blu-Tac@ or cotton wool! The engine oil viscosity csn also have a slight effect,some say the magnatec is good.

Mon Sep 18, 2006 2:34 am

Check the noise they make when youre adjusting them ,literally rock them with your fingers.They are sometimes noisier because they are pitted and generaaly worn,if you remove the eccentric adjuster (be careful not to drop the 10mm nut as it may dissapear down an oil channel) and examine it closely the wear will be evident.New ones can be purchased at your dealer.Failing that you may as well get a reconditioned head with all the extra expense and so on... It drives me mad too !