Power washing undercarriage- what to look for

[billschroeder5842]

I have a power washer (1600 PSI) and I'm thinking of washing the undercarriage and wheel wells on my '91 ZR1. I'm also thinking of doing some engine/cradle washing but only below the heads-- nothing on top that can get through the plenum.

I'm just looking for a general clean up of the suspension and undercariage- I'm aware to stay clean of electrical connections.

Is there any concern about a general clean up? Is there any areas or components that are particularly fragile?

I posted this also on CF so we see what they say.

Thanks!