.
1994 Engine cleaning
Thread Starter
1st Gear
Joined: Jun 2016
Posts: 1
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1994 Engine cleaning
I purchased a 1994 C4 in mint condition in Jan...Really would like to detail the engine compartment. Heard you need to be very careful about getting the Opti wet...Has never been out in bad weather. Any suggestions on cleaning ?? I heard simple green/water works well with a gentle wash. Just worried about getting things wet under there
Race Director
Joined: Mar 2015
Posts: 15,926
Likes: 579
I purchased a 1994 C4 in mint condition in Jan...Really would like to detail the engine compartment. Heard you need to be very careful about getting the Opti wet...Has never been out in bad weather. Any suggestions on cleaning ?? I heard simple green/water works well with a gentle wash. Just worried about getting things wet under there
Melting Slicks
Joined: May 2013
Posts: 2,692
Likes: 349
From: Sacramento California
Stuff some rags around the optispark and don't spray any water in that direction. Also wrap the alternator in a few plastic bags with tape or rubber bands. Then you can feel comfortable going to town with simple green and a garden hose nozzle.
You can use a power washer, but don't focus the tip too close to anything. Strong power washers can actually cut if you get the tip too close... it's a lot of pressure focused intensely to a single point. I would steer clear of electrical connections. Any questionable areas, just clean them by hand after rinsing the engine. Then run the engine to get everything dry... take her for a ride.
And do a search, there's lots of information on washing the Gen2 LT1/LT4.
You can use a power washer, but don't focus the tip too close to anything. Strong power washers can actually cut if you get the tip too close... it's a lot of pressure focused intensely to a single point. I would steer clear of electrical connections. Any questionable areas, just clean them by hand after rinsing the engine. Then run the engine to get everything dry... take her for a ride.
And do a search, there's lots of information on washing the Gen2 LT1/LT4.
Melting Slicks
Joined: Mar 2008
Posts: 2,351
Likes: 222
From: Delta B.C. Canada
2023 C7 of the Year Finalist - Unmodified
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Just try to avoid having water run directly down onto the opti. I always use a very light spray from the hose, or even no nozzle at all. Spray your favorite degreaser/cleaner on one area at a time, work it in with an old paint brush, and rinse lightly.
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. That was great. Thank you