Postby RB25-DET » May 6th, 2011, 12:36 pm
The physical washing of the engine doesn't damage the coils, ever heard of the golden rule water and electricity doh mix heres a perfect example.
The location of the RB20/25/26 coils can be described as inside a valley between the two cam covers, when water is left to settle in the "valley" submerging the coils in water this leads to the damage of the coils.
As turbosingh said any compitent and trusted mechanic will hook you up.