NG engine knock

[Huw Powell]

Glad you found the source!  I guess that's why one plug wouldn't cause 
it?  Not enough compression to fight, but two are?

Hope the flywheel teeth weren't injured.

On 6/10/2012 10:08 AM, Bill Green wrote:
> Problem solved! I went and bought a remote starter this morning so that I
> could get a better view and understanding of just where the noise was coming
> from. Turns out the starter was only held in by one bolt! It was hopping
> around and making that god-awful racket when trying to start the engine. If
> I hadn't bought the remote I never would have seen it. Thank goodness I
> don't have to pull the engine again!
>
> This is not the dumbest mistake I've ever made 'fixing' a car but its close!
> Lol
>
>
>
> -----Original Message-----
> From: quattro-bounces at audifans.com [mailto:quattro-bounces at audifans.com] On
> Behalf Of Bill Green
> Sent: Saturday, June 09, 2012 9:41 PM
> To: 'TonyEscobedo'; audi at humanspeakers.com
> Cc: quattro at audifans.com
> Subject: RE: NG engine knock
>
> Hmmm... I'll double check the plugs. Although its only when  two or more
> plugs are installed the knocking appears.
>
> By the way I should have mentioned that the head / valve assembly is all
> brand new as well when describing what I meant by "new NG engine".
>
>
> -----Original Message-----
> From: TonyEscobedo [mailto:TonyEscobedo at hotmail.com]
> Sent: Saturday, June 09, 2012 9:14 PM
> To: audi at humanspeakers.com
> Cc: Bill Green; quattro at audifans.com
> Subject: Re: NG engine knock
>
> Wrong plugs perhaps?? Too long? Maybe slightly tapping piston
>
>
>
> On Jun 9, 2012, at 8:57 PM, Huw Powell<audi at humanspeakers.com>  wrote:
>
>> Define "new NG engine" first?
>>
>> On 6/9/2012 8:34 PM, Bill Green wrote:
>>> Just put a new NG engine into my 4kq. Using the starter to turn it
>>> over resulted in a knock noise very much like a big end rod bearing
>>> was shot on one or more of the cylinders. I took all the plugs out
>>> then reinstalled a single plug in the cylinders one at a time turning
>>> the engine over each time. I thought that would show me which
>>> cylinder was making the noise. But they each sounded completely
>>> normal when I did this! Then I discovered that putting any two plugs
>>> in resulted in the knock noise returning! This is 10-1 compression
>>> engine could that noise be normal? I'm afraid to try and start this
>>> engine until I get past this problem. By the way rotating the crank
>>> through a complete cycle with the plugs out is very smooth with
>>> nothing striking anything. Any thoughts??? I don't want to re-pull
>>> this engine if I don't have to! J
>>>
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