[T3] Bad day at the (FI) office

[William J]

I've never used NKG plugs and always used the anti seize that is aluminum 
color.

 For what it's worth I use a thread chaser after I remove the plugs yet do 
it only with the chaser in a socket turned by hand and only to clear the 
threads in the heads of any carbon of old anti seize. When I install plugs I 
used a socket that has a rubber plug holder on the inside and this holds the 
plug , since the socket is 3/8" drive I use a 3/8" to 1/4" adapter and a 
1/4" ratchet with a flex handle. I install the plugs only using the socket 
and the 3/8" to 1/4" adapter and only by hand so I can feel if the plugs go 
in easy until they seat on their gasket then only use the ratchet to 
slightly compress the plugs metal gasket .

 I don't constantly remove and install plugs to read them I feel this is a 
bad idea not only because of the extra work on the threads but because now 
the gasket is already compressed so you can't feel it's resistance. The 
gasket was really designed to be a one time use item . I never had an issue 
with anti seize all you need is a little . I can't say if bosch plugs have a 
so called coating like NKG yet both have rolled threads unlike Champion . I 
have read issues with Bosch plugs something about the ground lug welded to 
the base may stick out even with or past the threads and actually ruin the 
threads in the heads I imagine it's something one could look at to make 
certain of.

William
----- Original Message ----- 
From: "Daniel Nohejl" <d.nohejl at gmail.com>
To: <type3 at vwtype3.org>
Sent: Monday, April 04, 2016 10:19 AM
Subject: Re: [T3] Bad day at the (FI) office



> I don't like seeing them so mis-matched. Some shrouding of the
> insulator can be blamed on whether the ground electrode ends up
> facing the intake valve or not, but the ground electrodes should all
> look about the same color. Yours are way too different. Injectors 1 &
> 4 are fired by one circuit in the brain, while 2 & 3 are fired by
> another. Unless one pair is getting more air, which seems unlikely
> since they use the same cam lobes, they should get the same gas.
>
> Check the brain connections for the injectors and the injector
> grounds. Give all the crimps a careful visual inspection. All should
> be tight. If they are, try a different brain.

Aren’t 1 and 4 fired by the same side of the trigger points too? Would it be 
worth having a look at those or perhaps trying a different pair? As of now, 
I’m pretty sure we’ve been through all the brains at our disposal and each 
has been associated with one or another of our issues…..though it remains to 
be seen if the brains were at fault or simply happen to have been installed 
while a fleeting issue was at work in the system.

> If it fouled on the eyeglass tin, that tells you that you had been
> screwing it in cross threaded, so lack of lubrication was not the
> problem. NEVER use a U-joint on your socket while installing plugs;
> you need to be able to SEE that you're putting it in straight.

Yeah, I used a socket with a built in U-joint. I’ll just toss it. Would a 
thread chaser be worth trying?


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