Why are the 6 liters so rattly and noisy when cold?

have the same thing with my engine mate, start up and running for a minute or so unless i give it a 3000+ rpm rev and it stops, i use a 0w-50 full syth to try and help it but found no change, im agreeing its definitly widespread

 

Wide spread for sure! AMF internals even if you have a manual.

Not sure that was the best move by GM with L76 & L77.

Can change then to Comp lifters or performance GM lifters for under $400.00

I would have to say semi synthetic or mineral oil better for these donks

Dave

 

Mate are you serious? We've spoken about this issue at length....

Me and some others on here have been banging on about cold start clunking (piston slapping) 6ltr engines in the VE for over a year now. There are even threads devoted to it... Geez, I've even had 4 engines replaced. It wasn't untill the new 2011 L77 they fitted that finally didnt piston slap when cold. However the lifters in it rattled their head off all the time... tick, tick, tick, tick.... Just absolutly ###n annoying.

After 4 years of dealing with Holden and just unlucky to get a **** motor every time I had to move on. Now I drive an SV6 2012 built. No more cold start rattles clunks or bumps.

We have been here before.... but is this trolling?
http://forums.justcommodores.com.au...9970-afm-l76-lifter-rattle-when-cold-wtf.html

 

I was gunna say i remember there being a thread on this, there isnt too many L98s with this problem mainly seems to be the new models with AFM ect

 

I don't know about that. I had 3 L98's (including the engine that was in the car when new) before the stop making the L98 and fitted L77's

 

Oh true fark there goes my theory haha still seems to be alot of these new motors ticking too, although when i snapped my valve spring in half it did tick a bit then

 

Haha,

Phil has had a bad run with Holden V8's

 

My ssv sounds like a diesel. In the mornings mines a 2010 with afm it's going in to Holden for warranty work soon I got 20k on the clock.now

 

I've got a '06 E1 GTS with a LS2 and mine along with another mates '07 WM Grange with a LS2 have piston slap on start up till the engine temps get above 80 degrees although I'd have to say its had no effect and doesn't use oil and its about to click over 200,000klm's!
And as long as you can put up with a bit of noise then you should be fine because how often do you find yourself giving your car a boot full when it's cold?

 

There has been a couple of short motors replaced that I know of. Seems like the place you took it doesn't want to help... tried another dealer?



Sent from my MB860 using Tapatalk 2

 

Mine must have been built on a Wednesday... engine that is, I just checked, car was built on a Monday lol - anyways, no rattle in mine.

 

As a pushrods v8 I've come to live with it being a bit noisy when it's cold . A good way to have a bit closer of a look could do a cylinder compression test ,a cylinder leak test and get an oil sample done to see what ppm readings are in the oil.

But easiest of all would be to buy a $15 mechanics stethoscope from repco/supercheap and place it on each cylinder when cold to try and isolate which cylinder or cylinders making the noise.

 

Hi Mate,

Im in the same boat and my noise file is in that thread somewhere, ive had trouble with Holden acknowledging there is a noise, and now as I have my car serviced by
a mechanic other then holden they pulled the we dont know what oil you put in it or what was checked rubbish so my engine warranty is quite useless now basically , anyhow ive learned to live with it atm but still when you start it up early one morning and instead of burble burble you get tick/knock/tick it brings you down a little.

Ps mines a 2010 Series 2 with AFM, As far as i can tell it hasnt affected anything else but my mind:bomb:

 

As Potta9 said it's an ancient, some would say prehistoric, engine design. It's unrefined, uncouth and generally quite rude. All the reviews made this quite clear when it was released. My L98 rattles like a deisel when cold, even the air intake is noisy - but it purrs like a kitten once she's warm.

Just be happy you can actually drive the thing before letting it warm up - quite the feat for an archaic motor.

 

Althought I liked this post very much (sums up the quality and engineering of the V8), it is interesting that there are plenty of other GEN 4 engines (L98, L76 and L77) that do not clunk/knock their heads off on first stone cold start.

There are 7 VE's (both series 1 and 2) at my work and none have this issue at the end of the day (stone cold) All have the Holden dealer service history.

While I was having all my dramas they went to get a series 1 VE SS off the used car lot (first thing in the morning) which had an L98 with 60,000klm on the clock to compare. I wanted to hear this car started cold for comparison. The engine was quiet, no cold start hesitation during cold idle, nothing... I immediately asked for that engine to be placed in my car.... LOL.... This SS was a manual also.

So rather than just put it down to the engineering design which is the overall cause. I'd suggest there is an element of poor workmanship (quality control) in the manufacturing of the parts and also the allowable tolerances/clearances not being tight enough.

Maybe the new V8 being talked about for the next commodore design might be a cure...

 

I'm not doubting you (I've been lurking around here long enough to know at least some of your story with the engines), but I can't say I've ever heard a Holden (or Ford for that matter) V8 that's not noisy in the morning. You should hear the Gen III across the road! Actually you probably can, even from Canberra..

 

I must be lucky, mu Gen3 is still quiet on cold start at over 180,000kms

 

it's annoying lol

mine does this as well......

has anyone tried putting aftermarket lifters in it and see if it goes away?