Join Date: Jun 2011
Location: Colorado Springs
I clean engine bays at the local, coin car wash. It can be risky with a hot engine, so be forewarned. However, I've been doing this since the 1980s and I've never had a problem. Don't hose down an engine if it's really hot. Warm should be OK.
If I had a power washer, I would hose everything down with a water and mild detergent solution using a garden sprayer. Then I'd hit it with the power washer. If there was still some grime around, I would hit it with a brush and detergent, then power wash again.
Definitely enclose the carburetor in a plastic bag. Do your best for the distributor, but that can be a losing battle. If moisture gets inside, it's no big deal. Just pop the cap, wipe everything down and let it all dry thoroughly.
Be careful with detergents. Some, like Simple Green, will discolor aluminum. Ask me how I know.
Use a wet/dry shop vac to suck water out of the top of the intake manifold. If you let it air dry, it will likely leave behind residue and discolor the intake.
Last edited by Klutch; 05-26-2019 at 11:01 AM.