Re: Motor swap: '86-5K to '90-100, will it work?

[ti@amb.org (Ti Kan)]

Mark writes:
> Does anyone know how interchangeable the 5-cylinder motors between a
> 1986-Audi 5K and a 1990-Audi 100 are?  The motor on my '86 is presently
> laid-up and am looking to replace it with a newer engine.  I have a line
> on a 1990 motor out of an Audi-100.  How compatible are the two motors?
> The only visual difference I can see is the design of the intake
> manifold.  I would imagine that they could be swapped along with the
> distributors.  Do you think it might work? Any wiring or ignition
> concerns?

The 1990 100 has the 2.3L high compression (10:1) motor.  If you swap
it into your 1986 car, you'll need to swap the knock sensing ignition
and fuel injection systems too (ECUs and all wiring, sensors, etc).
Other items to use from the new motor includes all the plumbing.  It's
best to have the donor car handy so you can lift any piece that you need
while you work.

-Ti
96 A4 2.8 quattro
84 5000S 2.1 turbo
80 4000 2.0
-- 
    ///  Ti Kan                Vorsprung durch Technik
   ///   AMB Research Laboratories, Sunnyvale, CA. USA
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