I am considering purchasing the V70 R; however, I have seen that the 2.5-liter engine is also used in many other cars. My inquiries are as follows:
YouTube videos provide advice on how to "shim" the engine. This is ostensibly to avert the engine block from fracturing owing to gaps between the cylinder heads. However, I believe that the engineers who designed the engine intentionally included these gaps. Could someone provide more clarification?
What is the main difference among the many 2.5-liter engines in different vehicles? It is present in the V50, although it has around 250 horsepower, in contrast to the 300 horsepower found in the V70. I am aware of the distinctions among V50, V70, S40, etc., but I am not acquainted with the engine configurations.
What is the reliability of this engine compared to other lower-powered options from Volvo?