[Vwdiesel] Fw: Injectors --- ( more of the bubly )

[Forrest L King]

Actually Hagar,  the threads ARE NOT sealing surfaces.   the threads only
serve to pull the injector down into the head and hold it there.   the
sealing surface is on the injector inserts,  (i am so wound up from a
helluva day at work I cannot think of their proper name right now) the
little do-nut looking things that go in the head before the injector.
they are usually about 95 cents each,  so it might be very worth your
time to pull the injector and put a new HEAT SHIELD ('bout damn time I
thought of it) in there.

use a good copper based anti- seize on the threads and be done with those
- and when you put in new heat shields,  ONLY torque to spec.

The reason you are not suppposed to re-use the heat shields is because
they bubble if you do.  So you really have to judge if your frugality
will pay off here - it probably won't in the long run - and what is 3.80
USD - not much to us Americans. (I know, 3.80 USD is like a weeks salary
in Canada, but still it is worth it.)

Good Luck, 73

DE KD5YQV  aka Forrest




On Sun, 21 Sep 2003 13:29:18 -0700 "H .Hagar" <h_hagar at prcn.org> writes:
> This is a multi-part message in MIME format.
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>
> ----- Original Message -----
> From: H .Hagar
> To: vwdiesel at vwfans.com
> Sent: September 21, 2003 8:57 AM
> Subject: Fw: Injectors --- ( more of the bubly )
>
>
>
> ----- Original Message -----
> From: H .Hagar
> To: vwdiesel at vwfans.com
> Sent: September 21, 2003 8:07 AM
> Subject: Injectors --- ( more of the bubly )
>
>
> I am willing to bet that there are few Old Volks totally without
> bubbles , the way I check them.    Do I have bubbles ? yes    --- am
> I going to do something about it --yes I am going to keep driving.
> It has to do with judgment .  very small bubbles drive  , big
> bubbles  pull the injector.
>
> One point is very important "DO NOT" cross thread the injectors.If
> you do they will never seal, The end of barrel must be square with
> machined seat for heat shield.     A damaged thread may be a
> problem. In that case I would experiment with a sealant.    White
> Teflon tape ??? well the Olds injectors some of them have a Teflon
> seal  and some of them a copper washer.
> Hagar.
> PS:  Use water and dish detergent and do the test on a cool
> engine.And let the rest of us know.  Here?  #1 Bubbles   and #4
> bubbles. (small).
> --
>
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>


Forrest King
forrestking at juno.com
281-534-7414

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