[Nobbc] Water spitting out tailpipe

[Peter & Nancy Bergman]

Hi Charlie,
I have a 54 120, that tends to paint a nice pattern of black crap out the 
tailpipe, but only when the choke is on. ( I have the choke on a switch 
rather than the automatic system that shuts the choke off when the engine is 
warm), so when I shut the choke off it quits spitting.  It doesn't seem to 
have any water to speak of though, beyond normal condensation, and the plugs 
show normal mixture burn.  The choke on these just open the needle valve on 
the "starting carburettor",  so the the mixture is extremely rich when on 
the choke.  I don't have any overflow bottle on the radiator overflow, so 
whatever expands enough on hot days, uphill, just waters the pavement!  Try 
getting it off the choke almost immediately, and see if it does the same 
thing.
good luck

Pete Bergman
----- Original Message ----- 
From: "Kurt" <klhoush at comcast.net>
To: "'North Bay British Car Club'" <nobbc at autox.team.net>
Sent: Wednesday, September 22, 2010 4:59 PM
Subject: Re: [Nobbc] Water spitting out tailpipe


> You're running rich. Make sure there is no antifreeze in the water.
> Kurt
>
> -----Original Message-----
> From: nobbc-bounces at autox.team.net [mailto:nobbc-bounces at autox.team.net] 
> On
> Behalf Of Charlie Saul
> Sent: Wednesday, September 22, 2010 4:00 PM
> To: North Bay British Car Club
> Subject: [Nobbc] Water spitting out tailpipe
>
> Hi Guys,
>
> Could really use your advice on this one.
>
> Best Regards,
>
> Charlie
>
> 1952 Jaguar XK 120 OTS
>
> Just 1000 miles after a complete engine out rebuild and everything is
> running smooth. However, each time I start up cold,  about a cup or more 
> of
> water spits out the tailpipes (along with some dry black carbon) that
> temporarily wets about 10 to fifteen feet  of my driveway (or the front of
> the car behind).  I add about the same amount of water to the radiator
> (overflow bottle) every 100 miles or so.  What do you think is going on? 
> Is
> this a bad thing?
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