E30 Zone

just picked up my new motor drove it 5 miles with no prob apart from this noise the engine it self starts on the button and pulls . the noise is there even on idle and comes and goes as you change gear up and down any help have an engine for transplant if needed just need to be sure

Are you saying it goes when you push the clutch down ?


Btw a recording is no good fella, it can't relay where the noise is comming from.

this is a wild guess but take the rocker cover off and have a look at the rockers that sound realy bad

any luck mate?

been working all day and i just got in so wont have time till monday night . as for the sound it does sound like rockers when driving the sound comes and goes and nowt to do with the clutch so i thought it was the rockers thats why i drove it its to songing to be bottom end . but thats just me

what, so YOU've got a noisy bottom end?

need front bumper mate any one dont need to be a1 will sand blast then prime. then paint after i get some time to do the engine noise

a chromie for the tech1? no probs, got three at home mate

Could be exhaust manifold blowing somewhere..

snapped rocker

definitely not exhaust manifold special one, i think alex is nearer the mark

sounded just like my step dads b25 when we snapped a rocker going 130mph up a steep hill

Im going to jump on the rocker bandwagon too, it sounds too 'mechanical' for a blowing manifold + they tend to get quieter when the manifold warms up and expands.

Alex wrote:sounded just like my step dads b25 when we snapped a rocker going 130mph up a steep hill

130 UP a steep hill??

adit wrote:

Alex wrote:sounded just like my step dads b25 when we snapped a rocker going 130mph up a steep hill

130 UP a steep hill??

well steep ish we hit it at 130 the rocker went at 120mph

Crikey....that sounds 'orrible......certainly, my first move would be to spend 5 mins removing the rocker cover.....the cause SHOULD be obvious judging by that noise...........

no just need to adjust them rockers any one with feeler gauges fancy doing a fellow zoner a favour

Dropped a valve?

dont think so drives well and dosent miss a beat just knocks

I'd say the camshaft is utterly shagged in that.

Don't think you need feeler gauges, I suspect you could walk through some of the gaps.

My guess would be a blocked spray bar has killed the cam.

have run it with the rocker off and oil ok head has been rebuilt just before i got it so maybe the rockers have come loose and need to be reset. she runs and drives and she dont miss a beat no hesatation at all

sounds like when 1 of the bolts holding my torquer converter unscrewed and was smacking the engine body.

shes a stick shift

if you had a snapped rocker you'd know about it, they run like a pig on 5 and theres no power

edit: just listened sounds like a machine gun. Who ever "rebuilt" it might not have! Sounds top end and something very wrong!

cheers simon ok just redid all the rockers ok checked the head bolts ok refitted the rocker cover sounds the same then a friend came round and said run it and then he put his hand on the inlet manifold and said i can feel that i did the same and yes i can feel it any guesses any one still runs ok no lack of power at all

bump

hope you get it sorted m8,sounds like it might be a farmer who did the rebuild

ok ran this motor 4 3 hrs yesterday and she never missed a beat didnt get hot and now the bloody noise comes and goes for longer periods so reading a thred on here could this be a water pump or something on the front of the engine have done a comp test on all cylinders all ok just stumped will take head of and see but i doesnt sound bottom end to me sounds so much like a top end prob . so can i drive it

bump

have you checked for leaking injecters or intake manifold gasket faults .

no would it make a noise like that

that sounds exactly like mine did!!
http://www.e30zone.net/modules.php?name ... c&t=116865

whip the rocker cover off, if you cant see anythin wrong, run it with the rocker cover off. and listen, get a bit of suitable wood and try to hold each tappet in turn down on to the valve side. the noise will change like it did for me when i did that on mine.
no need to take the head off you can slide the rocker shaft out the front using a mid sized pry bar and a couple of different length 3/8ths sockets to progessivly shuv it out.