Quote:
Originally Posted by deansbimmer
They are difficult to reattach but possible. The caps are not sold by themselves, the only way to source them is buy purchasing a used VANOS adjuster and popping the cap off carefully. The springs hold preload on the adjusters. Without them the assembly will rattle and may cause VANOS codes for slow adjustments.
Also, you can clearly see one of the screws that holds the VANOS adjuster together is backing out (under the spring).
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You know what else happens? The spring swings out at high rpm and rubs against the valve cover and timing chain cover, causing metal to go into the engine. Eventually a small hole forms in the valve cover and oil starts leaking. After you replace the VANOS adjusters, you also have to pull the oil pan to clean the magnesium, aluminum, and plastic out of it. Otherwise the oil level sensor will read inaccurately and tell you the car is low on oil when it's really not.