How To Clean Cast Iron Intake Manifold
During this process spray the foam when the engine is at fast idle and keep the engine off when the sprayed foam is settling down.
How to clean cast iron intake manifold. In the video i m using an. After the spray dries 20 40 minutes depending on the atmosphere and thickness of the paint the top surface will have very dark dull look. How to thoroughly remove all the carbon inside of a plastic or aluminum intake manifold using purple power and a dryer lint brush. As cast is defined as a raw aluminum finish without any protective coating. As cast aluminum is porous and can absorb under hood chemicals such as dirt grease and fuel resulting in discoloration rust or staining.
Edelbrock intake manifolds are manufactured from a sand cast process utilizing 808 aluminum alloy and have an as cast wheel a brated finish. A couple gallons should do the trick. You don t want to push anything into the surface prior to applying any finishing product. Always clean anything before you perform any preperation or preservation. Immediately after blasting blow it out with high pressure air chase the carb pad holes and reinstall the studs and spray paint the outside to prevent flash rusting.
Cast iron intake manifolds are notorious for having sharp flashing. It s not for sale in ca anymore. Definitely remove the heat shield and clean under there. This is rusty iron. Spray the graphite in several thin layers allowing each coat to dry between 5 and 10 minutes before applying another.
Clean before and after you prep your project. Followed by which connect the intake manifold back to the vacuum hose. Then if you don t get to it right away clean it before you start again. Next allow the sprayed power foam to settle inside the line for five minutes. If it wasn t rusty i d recommend soaking it in purple cleaner.
Remove the carb studs and plug the holes with used cap screws. It s the only way to prep a rusty manifold. If you can buy castrol super clean it works even better. How to clean intake manifold in the proper way.