noisy injectors? e30

[j_tomo 0]

hey there i have a 87 m325i with m20b25 motor

and it sounds like it has noisy injectors, ive used a stethoscope to pin point the 3rd and 4th injectors

ive set the valve clarences twice and the noise is still there

it sounds like i have a sicader orgy under my bonnet

ive put heaps ove injector cleaner through the tank and it made them worse if anything

is this a common problem?

any ideas?

cheers

jeremy

[QuickSilver 0]

mine tick, i've put it down to being 21 years old,

[ducatiss 1]

Its almost impossible to tell you whether your injectors are normal or if there is something wrong without hearing them. I can hear mine ticking with the bonnet open but not with it closed. Are you sure all your valve clearances are correct?

[hotwire 352]

Would have thought unlikely to be injector problem, either try disconnecting one of those two at a time or remove rail & either relocate to different cylinders to compare or have them bench tested

[j_tomo 0]

its done 200,000ks and sat around for a long time

i set the vavle clarences according to my repair manual

its loud, sounds almost like valve clearances

at road speed you can hear them over road noise

it just seems odd for the 2 middle injectors to tick

ill swap them around tomoro and see how i get on

edit- injector resistance is correct

Edited January 1, 2008 by j_tomo

[QuickSilver 0]

just to add to that, my exhaust manifold had a leak and it ticked quite loudly, fixed that only to hear the 2nd tick of injectors lol.

[j_tomo 0]

any one got a good set of injectors to fit my 87 e30 325 uk import?

cheers