NCOMNC5

anyone use the high pressure wash at those self wash car washes to clean the engine bay and if so did it cause problems.. Also what is used to get the sheen on the rubber hoses and plastic parts in the engine bay.

mike100

you will likely have major problem using a quater machine public spray wash because:

1)the higher pressure spray will need a little extra car for water intrusion.
2) and the more important point: you have to drive to the location so the engine will be hot. this is an excellent way to damage certain electric components that don't do well with sudden temp changes (like tps sensors for one).

you can get a spray washer for your home location or even a siphon sprayer siphoning from a gallon jug of water- you just need compressed air. doing it at home also allows you to work on a cold engine bay.

0Killrwheels@Autogeek

Modern engine bays have fuse boxes, relays, coils, and other items that all could be susceptible to water damage. It would be careful and considerate to clean with a rinseless or waterless wash and a bucket of water or two.

I have also found that compressed air and a small brush or paint brush (cut bristles down 1/3 the way) can help with sand in corners without need for pressurized water.

Finally, once the engine bay is clean to your liking. Stay away from glossy silicone dressings which capture and hold dirt and dust. Use a water based dressing as you can find many different looks depending on brand from fresh to matte to shiny. 303 Protectant is a best seller and often well suggested by Vette owners.

0Adam's Polish

Here are some good tips on cleaning, then follow up with SVRT and In & Out Spray for all the rubber and plastics in your engine compartment......

http://adamspolishes.com/shop/exteri...-dressing.html

http://adamspolishes.com/shop/exteri...out-spray.html

JoeD-C8

My experience detailing my cars is to do it from day one. If you think your brand new Corvette engine bay doesn't need detailing guess again. Last year I saw a 2016 come in to a show and the bay was horrendous and it came right from the dealer to the show.
If you start at the onset and rinse it and use some tight quarter long reach brushes, you will never have to even think of high pressure washing.
As for plastic and hoses I use Stoner Trim to keep things looking new.

Too-Fast

OK, so this will probably be an unpopular response.

I have been detailing cars and Corvettes for over 30 years. Back in 1985 I used to use a high pressure, hot pressure washer to "steam" clean engine bays; not anymore. With todays complicated relays, sensors, and electronics under the hood it is asking for problems to pressure wash or spray a hose under the hood of your Corvette.

You will need some cleaner; Purple Power, Dawn dish liquid (for the suspension), small detail brushes, rags, a lot of patience and some elbow grease. The last really dirty engine I did was in 2009 on my 2004 C5 'vert that I purchased from the original owner with 14K miles on it...I spent 17 hours detailing that engine and the bay; no hose or pressure washer used. That car has gone on to win two NCCC judged shows, placed in the top three, in its class three years in a row at Vettes on the Rockies (before its cancellation) and numerous first place wins at local events. Bottom line is IMO, don't use water under the hood; its not worth the damage that can be done short or long term and you can get great results without it.

NCOMNC5

Thanks everyone for your input. Common sense told me not to use the high pressure route. The last time I used one was way back in 71 on may Chevelle SS.