Theory LONG: Audi Warranty issues, AoA was: Car fax

[Ti Kan]

tom winter writes:
> Ti - is a 1988 80 4 cyl front-wheel drive an interference or
> non-interference engine? And what about the type 44's? Just wondering.

This is how I understand it (someone please correct me if I'm wrong):

The 1988 80 2.0L 4-cyl engine (code 3A) is probably borderline interference
(i.e., it may not be interference when cranked by hand, but under real
engine operating speeds the valves may meet the pistons).

Type 44s have several different engines:
The 2.1L and 2.2L non-turbo engines are non-interference.  The 2.3L
high compression engine and all the turbos are borderline interference.

-Ti
2003 A4 1.8T multitronic
2001 S4 biturbo 6-sp
1984 5000S turbo
1980 4000 2.0 5-sp
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