NG engine knock

[Bill Green]

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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