Vs Series III V6 Ecotec Engine Rattle

[madded11]

Recently bought a series 3 vs v6 ute that didn't drive. After a few seconds it was obvious the last guy that owned it tried to replace the clutch. Being that he didn't know his face from his a*** about cars.. he put it in wrong.

So after fixing the clutch issue, I fired it up to find a rattle coming from the left side rockers. So I pulled the intake manifold off to find that two of the yellow funnels on the end of the injectors had fallen off and were going on a joy ride on the top of the intake valves.

But now after I have reassembled the motor there is a louder rattle/grind noise with a slight miss and Shudder on sharp acceleration. Sounds like it is coming from the rear right hand side now.. and it isn't any of the previous problems.. Ideas?

 

[hotrod]

push it of a cliff. its been flogged out.

 

[madded11]

That's more of a temporary fix. Resulting in massive issues.. lets just stick to the problems at hand eh?

 

[Bowen]

Jeez that's quite a series of events.... Clearly this dude has had a crack at everything and sort of failed miserably.... In terms of noise I think you need to try and isolate it, find a way to make the noise on que, find out if it happens when stationary or moving or both find out its location find out the circumstances ie wot or partial throttle or idle or all, hot cold warm etc etc then use a screw driver held up to your ear and listen to individual components with the screw driver touching them. As for the the misfiring that can be pretty much anything again u need to narrow it down what throttle positions driving stationary isolate it to a cylinder or 2 or 6 check resistances check spark change fuel filter listen to injectors with screw driver listen to any abnormalities in solenoid operation etc etc

 

[magemx]

Yep, rattle is not always equal to death. Since you mentioned "rattle" instead of "knock" or "tapping". But a rattle/grind is sound is how I would also describe a failed HB (harmonic balancer).

 

[Eggy995]

Death rattle!!!

 

[EYY]

Tapping/ticking is alright, rattles less so, and knocks mean it's pretty much game over. My last motor had a knock and wouldn't even maintain 100km going up a hill anymore. Does it only happen when the car is in motion? Or at idle? A manual ecotec will have been flogged without a doubt.

Bowen has given some great advice. Answers to those questions are what we need.

A video might make it easier for us to help you out.

 

[hotrod]

best bet is to pull it out and drop the sump , called be a shot big end bearing , I be stripping the motor or get a second hand one. it defiantly been abused and needs some LTC.

if that don't work use a bigger hammer.

 

[Wozza]

Hi
Does it sound like this

thread here...it was bad
http://forums.justcommodores.com.au...ng-sound-vs-ecotech-3-8l-gets-louder-rpm.html

or more like this

thread here
http://forums.justcommodores.com.au...93-1997/215537-vs-series-2-engine-rattle.html

 

[PlenumBiscuit]

http://forums.justcommodores.com.au...93-1997/215537-vs-series-2-engine-rattle.html

that threads a hell interesting read wozza

be nice to check if my tensioner is fecked

difficulty level of taking timing cover off? any specialty tools required or torque settings? or just a simple undo bolts and get in?