[s-cars] S4 engine replacement

[Harold McComas]

On the subject of carbon on the valves... About every year my old GTI used 
to get a slight after-run , maybe one second tops  when turning off the 
ignition, aka dieseling. I would run the fuel very low and then dump in a 
can of Lubrimoly Fuel injector cleaner and a can of Ventil-Sauber (valve 
clean), then go drive the car for about a 1/2 hour. Cured the problem every 
time.  When I first got the GTI I also tried the Seamfoam treatment, makes 
the car a fog machine. :-) Seafoam info:
http://www.seafoamsales.com/motorTuneUpConsumer.htm

Harold M
Manchester, NH

> From: "Ben Swann" <benswann at comcast.net>
> Subject: [s-cars] [urq] S4 engine replacement
> To: <AUDIJIM at aol.com>
> Cc: 20v-request at audifans.com, quattro at audifans.com,
> s-car-list at audifans.com, Ben Swann <benswann at comcast.net>
> Message-ID: <085001c62544$2ac27a30$6601a8c0 at Swansong>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> reply-type=original
>
> Jim,
>
> I have it on some good and experienced authority that adding a can of 
> brake
> fluid to the oil will rejuvinate rubber seals  - for a car that was 
> burning
> or leaking oil and owner does not want to shell out for a complete 
> rebuild.
> I couldn't believe if, but he says that he has used this technique time 
> and
> time again with many satisfied custimers.
>
> Don't know if it will help with your situation, but thought it was a good
> tidbit.
>
> I've also heard of the Bon'ami cleanser technique for getting carbon
> deposits off of valves - I don't hold much creedence in this one, but if 
> the
> engines got to be torn down, what have you got to loose.
>
> My father and others swear by the Marvel Mystery Oil - both fuel and oil
> additives - also say not normally additive users, but this stuff really
> works.
>
> The only additive I've tested with verfiably good results is the BG44K
> additive I get at the dealer - not cheap, but really does the trick for
> valve deposit cleaning and fuel system cleaning.  You may just have some
> carbon buildup on a valve or two and this may do the trick.
>
> Ben
>
> Date: Sun, 29 Jan 2006 10:19:43 EST
> From: AUDIJIM at aol.com
> Subject: [urq] S4 engine replacement
> To: Audi5TurboTech at yahoogroups.com, s-car-list at audifans.com,
> urq at audifans.com, acna_pcc at yahoogroups.com
> Message-ID: <279.3f6c72d.310e370f at aol.com>
> Content-Type: text/plain; charset="US-ASCII"
>
> Since I'm going to replace the engine anyway, I have to ask this. While 
> I'm
> gathering the parts for my spare AAN rebuild, I thought I would ask the
> list(s)
> if they could recommend any type of engine additive to help the AAN
> currently
> in the car. I don't really believe in snake oil type miracle engine
> additives, but if someone who has tried something in the past with similar
> problems and
> had some sort of results, I'd be willing to try it. What would I have to
> loose except a few bucks towards the miracle product? As a recap, my 
> engine
> has 4
> out of 5 cylinders with unfavorable leak down test results. Even though #4
> cylinder was not the worst, while running it causes a dead miss. I have
> confirmed
> that I have fuel and spark. The compression test even turned good results.
> So
> I have a piston ring issue since all the blow by was coming from the dip
> stick or the valve cover cap during the leak down test. When I did the
> compression
> test, I must have had a good seal at that moment and it gave a good yet
> false
> reading. The engine starts on all 5 cylinders for about a second and then
> drops #4 cylinder. I believe this is because of the residual oil on the
> piston
> rings is letting the cylinder have a second of good compression. When the
> engine
> warms up to operating temps is runs a little better and nearly smooth at
> some
> times, but a quick blip of the throttle while at idle will make it run 
> rough
> again, and it will then clear up and run smooth again, but it never runs
> really smooth and you always feel the miss. So I need some sort of product
> that
> might help my current running condition, until I replace the engine in a 
> few
> weeks.
>
>
> Jim]