CorvetteForum - Chevrolet Corvette Forum Discussion

Corvette: How to Paint Fuel Rail Covers and Fluid Tanks

Not all auto paint jobs require the expense and expertise of a professional mechanic. Using a few simple tools, you can paint the fuel rail covers and fluid tanks in your Corvette for less than $100.

By Charlie Gaston - February 23, 2015

This article applies to the C5, C6 and C7 Corvette (1997-current).

The Corvette is a mean, sleek fighting machine on the track, accelerating to top speeds without much pull or engine noise. While you probably already know that you can add a fresh coat of paint to the muscular exterior, did you know you could also paint the Corvette's fuel rail covers and fluid tanks using common tools you may already have at home? This DIY does require some time to complete, but you can proceed at your own speed and wait days between moving on to the next step. Best of all, you don't need to involve an expensive mechanic. You can do everything right from your very own backyard or home garage.

Materials Needed

  • Warm water
  • Contact cleaner (optional)
  • Small wire brush
  • Cleaning tube or bathtub
  • 600 grit sand paper
  • Adhesive promoter, color paint and clear coat

Step 1 – Clean the fuse box, lower covers and plenum

Clean each item using a small wired brush and warm water or contact cleaner. If rust and grime are present, soak each item for several minutes. If using contact spray, treat the entire surface area and allow it to sit as directed by the manufacturer. Brush away hard to remove debris and other surface stains, adding moderate pressure if needed. Then, let it dry.

Figure 1. Pay special attention to rounded areas that may hold hidden grime.

Pro Tip

You can also use soapy water in lieu of contact cleaner, which retails for anywhere from $10 to $35 online.

Step 2 – Sand down imperfections

Holding the sanding block with both hands (600 grit sandpaper), slowly sand the surface of each item using firm, even strokes. Move in a deliberate fashion, paying special attention to imperfections and rough or uneven spots. Sand to a smooth, even finish.

Figure 2. Using sandpaper.

Step 3 – Apply adhesive promoter

Hold the sprayer approximately 10 inches from the surface of the fuse box. Apply two level coats, moving side to side or top to bottom until you treat the entire surface area. Repeat for lower covers and plenum.

Add three to five coats of colored paint, and then let dry.

Seal with an additional three coats of clear paint to enhance the quality and shine of the finish. Let it dry as directed.

Figure 3. Adhesion promoters help to create a professional-grade paint finish.

Pro Tip

Adhesive promoters are available at auto part stores and online for around $20 per can. Always follow the manufacturer's instructions and recommended drying times.

Step 4 – Treat fluid tanks

Following the same process as described up above, start by washing the fluid tanks in warm water. Next, sand the complete surface area of each tank to a smooth finish, and then add several coats of adhesive promoter. Once dry, add three to five color coats, providing sufficient drying time for each one. Follow with at least two clear coats.

Pro Tip

It is advisable to take your time completing each step and not to rush. Never skip a step or ignore the manufacturer's instructions for proper use.

Related Discussions