Жийрэг: материалыг сонгох ба эвдэрсэн цилиндрийн толгойн жийргийг унших

Жийрэг бол гурван өөр зүйлийг нэгэн зэрэг битүүмжлэх ёстой хяналттай алдагдлын зам юм: шаталтын даралт, хөргөлтийн шингэн, тос. Материалыг эдгээрийн аль нь давамгайлж байгаагаар нь сонгоно.

Soft gaskets

Fibre, rubber, flexible graphite or aramid blends. Used for water pumps, fuel pumps, sumps, rocker covers. They conform to imperfect surfaces and tolerate small distortion.

They do not tolerate over-torque. Squash a soft gasket too far and it stops recovering, then it weeps.

Metal and composite head gaskets

Multi-layer steel with embossed sealing beads is standard where combustion pressure is high. It needs a flat, correctly finished deck — the bead has very little tolerance for a low spot.

Composite gaskets with a steel core and soft facing are more forgiving of surface finish but carry less peak pressure.

What a blown head gasket is telling you

A failure between two cylinders means the head or block was not flat, or the bolts were not replaced. A failure to a water passage at one end often means the cooling system was pressurising from a blocked breather or a warped head.

Replace the gasket, but measure head flatness, bolt stretch and liner protrusion first. Otherwise the new one fails the same way.

Солихоос өмнө юу шалгах хэрэгтэй

  • Deck and head flatness with a straight edge and feeler gauge
  • Head bolt length or stretch — replace if out of spec
  • Liner protrusion, if the engine has wet liners
  • Gasket surface for a clean witness mark showing where it was not clamping
Хөдөлгүүрт тохирох сэлбэг авах

Send your model, engine code or OEM number. We confirm fitment in writing before you pay; the first order on the Mongolia line ships free up to 30 kg — one time only.

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