Condenstation, and perfectly normal.
When the engine is first started, especially cold (or cool), the hot
exhaust gases coming in contact with the relatively cold exhaust pipe,
causes the water vapor to condense out as droplets. At times it can seen
as drops of water from the end of the tail pipe.
The is also the reason exhaust systems rust from the inside.
Rick Morrison
72 MGBGT
74 Midget
On Tue, 24 Mar 1998 18:55:09 EST ROBRTM3 <ROBRTM3@aol.com> writes:
>Dear Wisemen,
>
>Just curious if there is a consensus as to what would be the cause of
>slight
>waterbase soot type residue from the exhaust pipe, mostly right after
>start
>up; and it seems to be curbed after running for a while. Information
>about
>the car is 77 B, with 85,000; new remanufactured head that appears to
>be
>ported, recent carb rebuild, and new gas tank. Car sat stored for a
>few years
>prior to recent work just described.
>
>Thanks in advance,
>Robert Murray
>Katy, Texas
>
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