The modern design, with all its “progressiveness, " has only aggravated the disease.
Now, to eliminate oil leakage, you need to dismantle the cylinder head cover, and then the camshaft bearing housing. Here is such a “present”, if you like, to both an amateur mechanic and a professional! A time-consuming operation requires a lot of time and a fairly high qualification of the performer, and one cannot do without a good sealant (for example, Loktayt).
Someone would rather close their eyes to this. But what about, say, when replacing candles? You begin to twist - and the oil mixed with dirt will flow into the cylinders. And what is it like working candles in "oil baths"? To get rid of oil leakage without taking apart the head of the unit, I propose a simple but effective technology. It is tested in practice.
Let's start with the purchase of two-component glue, pretty annoying in television advertising. As for the shovel - they did not try, but in our case it is just right.
Let the engine cool to ambient temperature. This is the first requirement. It is undesirable that the raw glue immediately come into contact with the hot parts - too fast polymerization will only hurt: it will complicate the work, and the layer may be loose. Before you turn out the candles, it is better to remove, as far as possible, the accumulated oil from the wells. Few minutes only benefit - you look, dirt will not get into the cylinders. There is no need to resort to abstruse devices, to "suction" with a syringe, etc. It turns out no worse if the oil, slowly, slowly getting wet patches of cloth.
Having unscrewed the candles, we remove not only oil residues from the wells, but also its traces - all surfaces in the area of the joints of the camshaft bearing housing and the block head are thoroughly degreased! The tool is a tissue swab on a suitable stick, soaked in acetone. This, by the way, is the key moment of the whole undertaking. If done carelessly and does not achieve good adhesion, you can’t get rid of oil leakage.
I foresee the question: will glue then prevent disassembly of the block head, if necessary? Not prevent. The strength of the glue is not so monstrous as the advertisement claims: the only thing that will have to be done additionally is to clean the parts of the remnants of the old glue. But you have to do the same with most other sealants!