What are the drawbacks of valve and breather covers?
(Valve and breather covers are sold together. $100 used replacement with no guarantee of condition – $400 for a new replacement.) Another drawback of magnesium is that it is more susceptible to general and galvanic corrosion. Magnesium corrosion is more pronounced than in Aluminum.
What is the part number for a valve cover gasket?
– 5 stainless steel replacement bolts to replace the aluminum – Old Part number 000912-005010, M5x18 superceded by new Part number 000000004436. A MB valve cover gasket should come with a cardboard backing and already be laid out to relax in its final form.
Why do I need to replace my breather cover?
Air leaks in the breather hoses will bypass the filter (think sand in your engine) and unmetered air will bypass the MAF and affect mileage. If you are thinking of just replacing the RTV – it is more than likely that the hardened and brittle breather hoses will crumble in the replacement process and need to be replaced.
Can a valve cover gasket cause an oil leak?
Even worse, some of a degreasing solution will get trapped in the valve / breather cover gasket capture grooves and cause a corrosion cell and completely deform the parallel lines of cast grooves. This will cause a vacuum leak and an oil leak. This type of corrosion makes it hard for a new gasket or RTV to achieve a good seal.
How do you remove valve cover breather gasket?
Use an E10 Torx and remove the three bolts (red arrows) on the breather cover. Use an E10 Torx and remove the three bolts (red arrows) on the breather cover. Make sure you clean the area well and inspect for debris (red arrow), sometimes the old gasket can fall back into the cover.
(Valve and breather covers are sold together. $100 used replacement with no guarantee of condition – $400 for a new replacement.) Another drawback of magnesium is that it is more susceptible to general and galvanic corrosion. Magnesium corrosion is more pronounced than in Aluminum.
Can you use RTV on valve cover gaskets?
If you have noticed that your valve covers are filthy with oil around the breather covers there is a very good chance the gaskets are going bad. Unfortunately they don’t sell a gasket for the covers so you are going to have to use RTV to make your own.
Where are the breather covers on a Mercedes Benz?
The two red arrows show the two breather covers, one on each valve cover. We are going to begin with the right side cover. You will be able to see the valve covers on top of the heads; they hold the coils (yellow arrows). The breather cover is located just above the coils (red arrow).