Penyebab Mesin Mobil Overheat

Penyebab Mesin mobil overheat kebanyakan karena habisnya air radiator (coolant). Air radiator habis bisa karena adanya kebocoran dan dan penguapan karena suhu panas dari mesin mobil.

dikutip dari garasi.id dibawah ini adalah penyebab mesin mobil overheat.

  1. Kipas radiator mati / rusak

Penyebab mesin mobil overheat yang pertama adalah kipas radiator mati/rusak. Untuk mendinginkan radiator, dibutuhkan sirkulasi udara yang dihasilkan oleh motor fan. Jika kipas pendingin mati, maka tidak ada aliran udara yang mendinginkan coolant pada radiator. Sehingga suhu mesin akan tetap panas karena coolant tidak dapat mendinginkan suhu mesin. Akibatnya, temperatur di ruang bakar mesin tetap panas dan dapat mengakibatkan mesin mobil overheat.

2. Tutup radiator rusak/tidak sesuai

Penyebab mesin mobil overheat yang kedua adalah tutup radiator yang rusak atau diganti dengan aftermarket. Peran penutup radiator sangat penting dalam proses pendinginan mesin. Gunanya sebagai akses keluar cairan bila tekanan di sistem radiator terlalu tinggi karena panas mesin. Sistem buka-tutup akses di penutup radiator diatur oleh komponen yang desainnya bisa berbeda setiap merek mobil.

Sistem radiator yang berisi cairan bekerja dalam ruang vakum, tekanan di dalamnya diatur oleh masing-masing pabrikan dan ukurannya bisa berbeda-beda. Bila diperhatikan pada penutup radiator terdapat angka ukuran tekanan bar 0,9, 1,1, atau 1,2.

Mengganti penutup radiator dengan produk aftermarket yang tidak sesuai tentu bisa mengganggu kerja sistem pendinginan. Bila salah, kemungkinan mesin mobil overheat sudah bisa dipastikan. Selain itu, salah satu komponen bahan dari cap (tutup) radiator berbahan dasar karet menjadi getas karena terkena panas coolant sehingga tidak bisa mengatur tekanan di dalam radiator.

3. Radiator bocor

Penyebab mesin mobil overheat selanjutnya adalah radiator yang bocor. Radiator bocor biasanya disebabkan oleh korosi pada kisi-kisi radiator. Ini dikarenakan radiator diisi selain air radiator (coolant/cairan pendingin). Kandungan oksigen dalam air bertemu dengan logam dan terjadilah reaksi kimia yang mengakibatkan korosi.

Karena korosi tersebut, radiator yang berbahan logam akan terkikis dan menyebabkan kebocoran. Pada kebocoran ini, cairan pendingin menjadi terbuang sehingga tidak cukup untuk mendinginkan suhu mesin kendaraan. Kalau cairan pendingin tidak mendinginkan mesin dalam waktu yang lama, sehingga mesin mobil mengalami panas berlebih atau biasa disebut overheat.

Nah itu lah beberapa penyebab mesin mobil cepat overheat. Tetaplah melakukan perawatan kendaraan anda dirumah atau pada bengkel kepercayaan anda.

sumber : garasi.id

2 thoughts on “Penyebab Mesin Mobil Overheat

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