')}.amp-carousel-button-prev{background-image:url('data:image/svg+xml;charset=utf-8,Previous ')}.ampstart-dropdown{min-width:200px}.ampstart-dropdown.absolute{z-index:100}.ampstart-dropdown.absolute>section,.ampstart-dropdown.absolute>section>header{height:100%}.ampstart-dropdown>section>header{background-color:#000;border:0;color:#fff}.ampstart-dropdown>section>header:after{display:inline-block;content:"+";padding:0 0 0 1.5rem;color:#003f93}.ampstart-dropdown>[expanded]>header:after{content:"�"}.absolute .ampstart-dropdown-items{z-index:200}.ampstart-dropdown-item{background-color:#000;color:#003f93;opacity:.9}.ampstart-dropdown-item:active,.ampstart-dropdown-item:hover{opacity:1}.ampstart-footer .ampstart-icon{fill:#000}.ampstart-footer .ampstart-social-follow li:last-child{margin-right:0}.ampstart-image-fullpage-hero{color:#fff}.ampstart-fullpage-hero-heading-text,.ampstart-image-fullpage-hero .ampstart-image-credit{-webkit-box-decoration-break:clone;box-decoration-break:clone;background:#000;padding:0 1rem .2rem}.ampstart-image-fullpage-hero>amp-img{max-height:calc(100vh - 3.5rem)}.ampstart-image-fullpage-hero>amp-img img{-o-object-fit:cover;object-fit:cover}.ampstart-fullpage-hero-heading{line-height:3.5rem}.ampstart-fullpage-hero-cta{background:transparent}.ampstart-readmore{background:-webkit-linear-gradient(bottom,rgba(0,0,0,.65),transparent);background:linear-gradient(0deg,rgba(0,0,0,.65),transparent);color:#fff;margin-top:5rem;padding-bottom:3.5rem}.ampstart-readmore:after{display:block;content:"?";font-size:2rem}.ampstart-readmore-text{background:#000}@media (min-width:52.06rem){.ampstart-image-fullpage-hero>amp-img{height:60vh}}.ampstart-image-heading{color:#fff;background:-webkit-linear-gradient(bottom,rgba(0,0,0,.65),transparent);background:linear-gradient(0deg,rgba(0,0,0,.65),transparent)}.ampstart-image-heading>*{margin:0}amp-carousel .ampstart-image-with-heading{margin-bottom:0}.ampstart-image-with-caption figcaption{color:#4f4f4f;line-height:1.125rem}amp-carousel .ampstart-image-with-caption{margin-bottom:0}.ampstart-input{max-width:100%;width:300px;min-width:100px;font-size:1rem;line-height:1.5rem}.ampstart-input [disabled],.ampstart-input [disabled]+label{opacity:.5}.ampstart-input [disabled]:focus{outline:0}.ampstart-input>input,.ampstart-input>select,.ampstart-input>textarea{width:100%;margin-top:1rem;line-height:1.5rem;border:0;border-radius:0;border-bottom:1px solid #4a4a4a;background:none;color:#4a4a4a;outline:0}.ampstart-input>label{color:#003f93;pointer-events:none;text-align:left;font-size:.875rem;line-height:1rem;opacity:0;-webkit-animation:.2s;animation:.2s;-webkit-animation-timing-function:cubic-bezier(.4,0,.2,1);animation-timing-function:cubic-bezier(.4,0,.2,1);-webkit-animation-fill-mode:forwards;animation-fill-mode:forwards}.ampstart-input>input:focus,.ampstart-input>select:focus,.ampstart-input>textarea:focus{outline:0}.ampstart-input>input:focus::-webkit-input-placeholder,.ampstart-input>select:focus::-webkit-input-placeholder,.ampstart-input>textarea:focus::-webkit-input-placeholder{color:transparent}.ampstart-input>input:focus::-moz-placeholder,.ampstart-input>select:focus::-moz-placeholder,.ampstart-input>textarea:focus::-moz-placeholder{color:transparent}.ampstart-input>input:focus:-ms-input-placeholder,.ampstart-input>select:focus:-ms-input-placeholder,.ampstart-input>textarea:focus:-ms-input-placeholder{color:transparent}.ampstart-input>input:focus::placeholder,.ampstart-input>select:focus::placeholder,.ampstart-input>textarea:focus::placeholder{color:transparent}.ampstart-input>input:not(:placeholder-shown):not([disabled])+label,.ampstart-input>select:not(:placeholder-shown):not([disabled])+label,.ampstart-input>textarea:not(:placeholder-shown):not([disabled])+label{opacity:1}.ampstart-input>input:focus+label,.ampstart-input>select:focus+label,.ampstart-input>textarea:focus+label{-webkit-animation-name:a;animation-name:a}@-webkit-keyframes a{to{opacity:1}}.ampstart-input>label:after{content:"";height:2px;position:absolute;bottom:0;left:45%;background:#003f93;-webkit-transition:.2s;transition:.2s;-webkit-transition-timing-function:cubic-bezier(.4,0,.2,1);transition-timing-function:cubic-bezier(.4,0,.2,1);visibility:hidden;width:10px}.ampstart-input>input:focus+label:after,.ampstart-input>select:focus+label:after,.ampstart-input>textarea:focus+label:after{left:0;width:100%;visibility:visible}.ampstart-input>input[type=search]{-webkit-appearance:none;-moz-appearance:none;appearance:none}.ampstart-input>input[type=range]{border-bottom:0}.ampstart-input>input[type=range]+label:after{display:none}.ampstart-input>select{-webkit-appearance:none;-moz-appearance:none;appearance:none}.ampstart-input>select+label:before{content:"?";line-height:1.5rem;position:absolute;right:5px;zoom:2;top:0;bottom:0;color:#003f93}.ampstart-input-chk,.ampstart-input-radio{width:auto;color:#4a4a4a}.ampstart-input input[type=checkbox],.ampstart-input input[type=radio]{margin-top:0;-webkit-appearance:none;-moz-appearance:none;appearance:none;width:20px;height:20px;border:1px solid #003f93;vertical-align:middle;margin-right:.5rem;text-align:center}.ampstart-input input[type=radio]{border-radius:20px}.ampstart-input input[type=checkbox]:not([disabled])+label,.ampstart-input input[type=radio]:not([disabled])+label{pointer-events:auto;-webkit-animation:none;animation:none;vertical-align:middle;opacity:1;cursor:pointer}.ampstart-input input[type=checkbox]+label:after,.ampstart-input input[type=radio]+label:after{display:none}.ampstart-input input[type=checkbox]:after,.ampstart-input input[type=radio]:after{position:absolute;top:0;left:0;bottom:0;right:0;content:" ";line-height:1.4rem;vertical-align:middle;text-align:center;background-color:#fff}.ampstart-input input[type=checkbox]:checked:after{background-color:#003f93;color:#fff;content:"?"}.ampstart-input input[type=radio]:checked{background-color:#fff}.ampstart-input input[type=radio]:after{top:3px;bottom:3px;left:3px;right:3px;border-radius:12px}.ampstart-input input[type=radio]:checked:after{content:"";font-size:3rem;background-color:#003f93}.ampstart-input>label,_:-ms-lang(x){opacity:1}.ampstart-input>input:-ms-input-placeholder,_:-ms-lang(x){color:transparent}.ampstart-input>input::placeholder,_:-ms-lang(x){color:transparent}.ampstart-input>input::-ms-input-placeholder,_:-ms-lang(x){color:transparent}.ampstart-input>select::-ms-expand{display:none}.ampstart-headerbar{background-color:#fff;color:#000;z-index:999;box-shadow:0 0 5px 2px rgba(0,0,0,.1)}.ampstart-headerbar+:not(amp-sidebar),.ampstart-headerbar+amp-sidebar+*{margin-top:3.5rem}.ampstart-headerbar-nav .ampstart-nav-item{padding:0 1rem;background:transparent;opacity:.8}.ampstart-headerbar-nav{line-height:3.5rem}.ampstart-nav-item:active,.ampstart-nav-item:focus,.ampstart-nav-item:hover{opacity:1}.ampstart-navbar-trigger:focus{outline:none}.ampstart-nav a,.ampstart-navbar-trigger,.ampstart-sidebar-faq a{cursor:pointer;text-decoration:none}.ampstart-nav .ampstart-label{color:inherit}.ampstart-navbar-trigger{line-height:3.5rem;font-size:2rem}.ampstart-headerbar-nav{-webkit-box-flex:1;-ms-flex:1;flex:1}.ampstart-nav-search{-webkit-box-flex:0.5;-ms-flex-positive:0.5;flex-grow:0.5}.ampstart-headerbar .ampstart-nav-search:active,.ampstart-headerbar .ampstart-nav-search:focus,.ampstart-headerbar .ampstart-nav-search:hover{box-shadow:none}.ampstart-nav-search>input{border:none;border-radius:3px;line-height:normal}.ampstart-nav-dropdown{min-width:200px}.ampstart-nav-dropdown amp-accordion header{background-color:#fff;border:none}.ampstart-nav-dropdown amp-accordion ul{background-color:#fff}.ampstart-nav-dropdown .ampstart-dropdown-item,.ampstart-nav-dropdown .ampstart-dropdown>section>header{background-color:#fff;color:#000}.ampstart-nav-dropdown .ampstart-dropdown-item{color:#003f93}.ampstart-sidebar{background-color:#fff;color:#000;min-width:300px;width:300px}.ampstart-sidebar .ampstart-icon{fill:#003f93}.ampstart-sidebar-header{line-height:3.5rem;min-height:3.5rem}.ampstart-sidebar .ampstart-dropdown header,.ampstart-sidebar .ampstart-dropdown-item,.ampstart-sidebar .ampstart-faq-item,.ampstart-sidebar .ampstart-nav-item,.ampstart-sidebar .ampstart-social-follow{margin:0 0 1.5rem}.ampstart-sidebar .ampstart-nav-dropdown{margin:0}.ampstart-sidebar .ampstart-navbar-trigger{line-height:inherit}.ampstart-navbar-trigger svg{pointer-events:none}.ampstart-related-article-section{border-color:#4a4a4a}.ampstart-related-article-section .ampstart-heading{color:#4a4a4a;font-weight:400}.ampstart-related-article-readmore{color:#000;letter-spacing:0}.ampstart-related-section-items>li{border-bottom:1px solid #4a4a4a}.ampstart-related-section-items>li:last-child{border:none}.ampstart-related-section-items .ampstart-image-with-caption{display:-webkit-box;display:-ms-flexbox;display:flex;-ms-flex-wrap:wrap;flex-wrap:wrap;-webkit-box-align:center;-ms-flex-align:center;align-items:center;margin-bottom:0}.ampstart-related-section-items .ampstart-image-with-caption>amp-img,.ampstart-related-section-items .ampstart-image-with-caption>figcaption{-webkit-box-flex:1;-ms-flex:1;flex:1}.ampstart-related-section-items .ampstart-image-with-caption>figcaption{padding-left:1rem}@media (min-width:40.06rem){.ampstart-related-section-items>li{border:none}.ampstart-related-section-items .ampstart-image-with-caption>figcaption{padding:1rem 0}.ampstart-related-section-items .ampstart-image-with-caption>amp-img,.ampstart-related-section-items .ampstart-image-with-caption>figcaption{-ms-flex-preferred-size:100%;flex-basis:100%}}.ampstart-social-box{display:-webkit-box;display:-ms-flexbox;display:flex}.ampstart-social-box>amp-social-share{background-color:#000}.ampstart-icon{fill:#003f93}.ampstart-input{width:100%}main .ampstart-social-follow{margin-left:auto;margin-right:auto;width:315px}main .ampstart-social-follow li{-webkit-transform:scale(1.8);transform:scale(1.8)}h1+.ampstart-byline time{font-size:18px;font-weight:400}.ampstart-subtitle{text-transform:uppercase}.content-body iframe{max-width:100%}.margin-top-15{margin-top:15px}.margin-top-10{margin-top:10px}.text-red{color:red}.amp-social-share{font-size:14px;padding:5px;width:32%}amp-social-share{background-size:20px}.amp-social-list{position:absolute;bottom:30px}.followus{margin-top:-10px;font-weight:700}.box-artikel-terkait-images amp-img{width:80px;height:80px}.box-artikel-terkait{border-bottom:1px solid #ccc;padding-bottom:2px;padding-top:10px}.box-artikel-terkait-images{float:left}.box-artikel-terkait-images amp-img img{object-fit:cover}.box-artikel-terkait-description small{font-size:11px}.box-artikel-terkait-description p{font-weight:700;font-size:14px}.box-artikel-terkait a{text-decoration:none}.feature-images amp-img img{object-fit:cover}.ads{width:320px;height:auto;text-align:center;margin:70px auto auto}.ads-300{height:250px}.ads-300,.ads-600{width:300px;text-align:center;margin:10px auto auto}.ads-600{height:600px}footer{background-color:#fff}footer ul{margin:0;padding:0}footer a{color:#fff;font-size:12px;font-weight:400;text-transform:none}footer li{list-style:none}.footer-copyright{color:#fff;font-size:14px;text-align:center;padding:10px;background-color:#1d1d1b}.feature-images-video{background-color:#000;padding:20px 0}.content-body p{margin:10px 0}.align-center-button{display:flex;align-items:center;justify-content:center;flex-direction:row;width:100%}amp-web-push-widget .subscribe{display:flex;flex-direction:row;align-items:center;border-radius:2px;border:1px solid #007ae2;padding:6px 20px;font-size:12px;margin:15px 0 0;background:#0e82e5;color:#fff}amp-web-push-widget .subscribe,amp-web-push-widget .unsubscribe{cursor:pointer;outline:0;font-weight:400;-webkit-tap-highlight-color:transparent}amp-web-push-widget .unsubscribe{border-radius:2px;border:1px solid #b3b3b3;margin:0;padding:8px 15px;font-size:15px;background:#bdbdbd;color:#555}amp-web-push-widget .subscribe .subscribe-icon{margin-right:10px}amp-web-push-widget .subscribe:active{transform:scale(.99)}
Motor Kena Banjir? Jangan Nekat Nyalain, Risiko Water Hammer! Uzone.id - Belakangan ini hujan cukup deras mengguyur beberapa wilayah di Indonesia, bahkan tak sedikit yang mengalami banjir. Bagi pemilik motor yang tunggangannya terendam banjir, jangan dipaksa untuk dinyalakan karena berpotensi terkena water hammer.
Ketika kendaraan terendambanjir , kemungkinan terdapat banyak air yang masuk ke dalam area mesin. Jika masuk ke ruang pembakaran mesin, maka bisa menyebabkan water hammer jika motor dipaksa untuk dinyalakan.
Ribut Wahyudi selaku Kepala Bengkel Honda Bintang Cinere Depok menjelaskan air yang masuk terlalu banyak ke ruang bakar mesin tidak bisa dikompresi oleh mesin. Berbeda dari bahan bakar yang memiliki campuran bensin dan udara yang dapat dikompresi. Ketika mesin melakukan kompresi dengan adanya air di ruang bakar mesin, dapat menyebabkan benturan keras.
"Melewati genangan air melebihi batas maksimal mesin dan dipaksakan dengan suhu panas kerja engine, terjadilah perubahan suhu drastis dan menyebabkan komponen material di dalam mesin bengkok bahkan bisa menyebabkan patah," ujar Ribut ketika dihubungiUzone.id .
Ribut pun menjelaskan komponen mesin yang rusak akibat water hammer biasanya adalah komponen utama seperti piston yang pecah atau setang piston (connecting rod) yang bengkok.
Jika sudah terjadi water hammer, Ribut mengatakan motor tidak dapat dinyalakan. Sehingga untuk memperbaiki motor yang mengalami kerusakan tersebut adalah dengan mengganti komponen yang rusak dengan yang baru, alias turun mesin.
Perlu diketahui, air masuk ke ruang bakar mesin bisa melalui beberapa titik yakni filter udara dan pembuangan dari knalpot.
Jika kedua komponen ini sudah terendam air, baiknya dicek terlebih dahulu sebelum dinyalakan. Dengan tidak menyalakan motor secara paksa, juga dapat terhindar dari terjadinya water hammer.
Sedangkan saat sedang berusaha menerjang banjir, diusahakan kedua komponen tersebut berada di atas permukaan air. Sehingga mesin motor bisa terhindar dari kemasukan air ke ruang bakar.