Timing Belt anaa Timing Chain Snap Bere a Woreka Ka: Engine Owu Mpofirim ne Power Breki a Wɔde Siesie¶

Wɔ engine biara a ɛhyew anan a ɛwɔ mu no mu no, rɔba bere abɔso a ɛwɔ sẽ anaa dade rola bere nkɔnsɔnkɔnsɔn to ase crankshaft (a ɛma piston ahorow no kɔ soro ne fam) no kyinhyia no mu wɔ mfiri a ɛne soro camshafts (a ɛpia intake ne exhaust valve ahorow no bue kɔ ɔhyew no mu no yɛ pɛpɛɛpɛ 2:1 adan a ɛwɔ adan mu). Nea ɛnte sɛ abɔnten serpentine accessory belt (baabi a engine no kɔ so tu mmirika bere a battery kanea no hyerɛn), timing belt anaa timing chain snap wɔ ɔkwan kɛse so ahoɔhare kum ogya ntɛm ara: wɔ 0.1 seconds mu no, engine RPM kɔ fam kodu zero, accelerator pedal no awu koraa, kɔkɔbɔ ahyɛnsode kɔkɔɔ biara a ɛwɔ dashboard no so (Oil Pressure, . Battery, . Check Engine) hyerɛn prɛko pɛ, na power steering assist yera.

Nneɛma abien a egye ntɛmpɛ a ɛho hia sisi wɔ sikɔne 5 a edi kan no mu bere a bere abɔso anaa nkɔnsɔnkɔnsɔn abubu akyi. Nea edi kan no, wɔ kwan so no, engine a awu no ma zero intake manifold vacuum, a ɛkyerɛ sɛ wo vacuum breki booster chamber no kura nhyɛso bɔne a wɔde asie a ɛdɔɔso nkutoo ma 1 kosi 2 a ahoɔden boa breki pedal press; sɛ wode ahopopo bɔ breki no mprɛnsa bere a woreka abom wɔ kar akwan so a, wobɛma saa mframa a wɔde asie no akɔ wim na breki no bɛdannan mpofirim te sɛ ɔbotan, na ebehia sɛ wode nan ahoɔden kilogram 50 kosi 75 na ama kar no agyina. Nea ɛtɔ so mmienu, wɔ hood no ase no, nnɛyi engine bɛboro ɔha mu nkyekyɛmu 80 yɛ "Interference Engines" baabi a dadeɛ valve a ɛbue ne piston a ɛreforo no kyɛ honam fam beaeɛ korɔ pɛpɛɛpɛ wɔ cylinder no mu wɔ milisekɔn ahodoɔ mu; sɛ kar no kɔ mpoano kodu baabi a egyina wɔ mmati so pɛ a, sɛ wobɔ starter motor no mpɛn pii de "bɔ mmɔden sɛ wubefi ase" a, ɛbɛbɔ valve biara a aka a enni dɛm a ɛbɛbɔ pistons no na abubu cylinder no ti. Sɛ woakɔda ɔkwan kɛse bi a ɛte ase so a, frɛ wo mpɔtam hɔ nɔma a egye ntɛmpɛ ntɛm ara (911 wɔ United States ne Canada, 112 wɔ Europa Aman Nkabom no nyinaa mu, 999 wɔ United Kingdom; hwɛ nɔma ahorow a egye ntɛmpɛ) na wɔasan ahwɛ mu Serpentine belt a abubu: onwini, charge, ne power steering a ɛyera, . Breki a entumi nyɛ adwuma yiye bere a woreka kar no, na Power steering a entumi nyɛ adwuma yiye anaasɛ steering wheel lock bere a woreka kar no.

Yɛ eyi mprempren¶

1. Nsakra kɔ Neutral (N) (anaasɛ kura clutch pedal no mu) wɔ sikɔne 2 a edi kan no mu na ama woakora forward coasting momentum so: Bere a timing belt bi pae bere a transmission no wɔ Drive (D) anaasɛ manual gear, engine a awu no yɛ adwuma sɛ mfiri a ɛtwetwe anchor a mogya fi wo ahoɔhare so ntɛmntɛm ansa na woatumi adu ɔkwan kɛse no mmati so. Pia gear selector no kɔ Neutral ( .N) ntɛm ara na dane wo faur-way hazard flashers sɛnea ɛbɛyɛ a wo kar no betumi akɔ mpoano kwa mita ɔhaha pii akɔ baabi a ahobammɔ wɔ a ɛbɛsɛe.
2. MMFA breki pedal no npom DA - fa press baako, kɔ so, nkɔsoɔ press di dwuma bere a ɛne mmati no ahyia pɛn: Esiane sɛ engine a agyina no nhyɛ vacuum breki booster no ma bio nti, ɔkwan baako so check valve a ɛwɔ booster no so no kura 1 kɔsi 2 assisted press pɛ. Ma wo nan mfi breki so bere a worekɔ mpoano wɔ kar akwan so no, na sɛ woasiesie wo ho sɛ wobɛbrɛ wo ho ase wɔ wo mmati so a, mia breki no so wɔ ɔkwan biako a ɛkɔ so so na mma wo nan so nkɔ soro da kosi sɛ kar no begyina koraa.
3. Sɛ breki pedal no te nka dedaw sɛ ɛyɛ den te sɛ ɔbotan a, fa w’akyi hyɛ nkongua no so na fa nan ahoɔden nyinaa gyina pedal no so: Breki pedal a ɛyɛ den bere a engine no agyina akyi no ɛnkyerɛ sɛ wo hydraulic breki no adi huammɔ; nea ɛkyerɛ ara ne sɛ vacuum assist no ayera. Fa wo mmati hyɛ nkongua no akyi na pia pedal a ɛyɛ den no kɔ fam denam nan abien no nyinaa anaasɛ ahoɔden a ɛsen biara a ɛwɔ nan biako mu (50+ kilograms / 110+ pounds) so na ama kar no agyae.
4. MMFA ignition key no nkɔ so DA LOCK anaasɛ OFF bere a kar no da so ara retu: Fa ignition key no sie ON / RUN gyinabea kosi sɛ tae no begyina koraa wɔ mmati no so sɛnea ɛbɛyɛ a worenkɔ mfiri stia adum lock pin no mu anaasɛ woremma anyinam ahoɔden stia / mframa bag ahorow no nyɛ adwuma wɔ mpoano mfinimfini.
5. Sɛ wogyina mmati so pɛ a, MMƆ starter motor no krank mpɛn pii mfa nsɔ nhwɛ: Sɛ wuhu signature symptoms a ɛkyerɛ sɛ timing belt a abubu (instant silent stall bere a cruising a zero sputter, anaasɛ fast, high-pitched, cadence-free whirring sound sɛ cranked pɛnkoro efisɛ zero cylinder compression nni hɔ), stop ntɛm ara na mma ɛnnan safe no bio. Wɔ interference engine anaa jumped timing chain so no, starter motor no krank biara ma pistons no kɔ valves a wɔabue mu no mu wɔ 250 RPM, na ɛdan cylinder ti a wotumi siesie no ma ɛbɛyɛ engine block a wɔaboaboa ano.
6. Fa breki a wode si kar no si hɔ denneennen, dan kɔ Park (P), na tu fi kwan ho guardrail no akyi: Esiane sɛ engine vacuum no ayera nti, service breki no renkura kar no mu mmerɛw wɔ koko bi so; twe mfiri nsa breki anaa ɛlɛtrɔnik breki a wɔde si kar so (EPB), fa apon a ɛwɔ akwantufo no nkyɛn no so fi hɔ kɔ akyirikyiri fi kar ho, na frɛ lɔre a ɛtwe nneɛma.

Gyinaesi dua: Ɔkwan kɛse so engine a ɛgyina mpofirim ne timing belt / chain diagnosis¶

flowchart TD
    Stall["Engine Wu Ntɛm ara wɔ Ɔkwan Kɛse so Ahoɔhare Mu (Dash Kanea Nyinaa Hann, 0 RPM)"] --> ShiftN["1. Dan kɔ Neutral (N) Ntɛm ara anaa Mia Clutch In kɔ Coast Freely"]
    ShiftN --> SteerBrake["2. Fa Nsa Abien Steer Kɔ Mmati na Breki wɔ Baako a Kɔ so Ntumi Nsɛe (Never Pump Pedal) ."]
    SteerBrake --> ParkSafe["3. Gyina wɔ Mmati so, Fa Parking Breki Si hɔ Yie, Dan kɔ Park (P), Dan Asiane ON"]
    ParkSafe --> SoundCheck{"4. Bere a Engine no Wui (anaasɛ Bere a Wɔreyɛ Krank a Ɛyɛ Sekan 1) no, Na Ɛyɛ Dɛdɛ dɛn?"}
    SoundCheck -->|"Metallic Clatter/Bang Ansa na Wuwu, ANAA Starter Twin Ntɛmntɛm & Pɛpɛɛpɛ Te sɛ Afiri a Wɔde Pam Nneɛma (Zero Compression)"| TimingBroken["TIMING BELT ANAA TIMING CHAIN A WƆAHU AKƆ SO A WƆASI SO ASI"]
    SoundCheck -->|"Engine no Sputtered/Coughed to a Stop NA Ɛyɛ Cranks wɔ Normal Rhythmic Cadence (uh-uh-uh-uh) so."| FuelOrSpark["Bere a Ɛnsɛee: Ɛbɛyɛ sɛ Petrol Pɔmpɛ no Adi huammɔ, Inertia Switch a Abɔ, anaa Crankshaft Sensor"]
    TimingBroken --> InterferenceCheck{"5. So Eyi yɛ Engine a Ɛtwetwe Nneɛma Anaasɛ Engine a Ɛnyɛ Nneɛma a Ɛtwetwe Nneɛma?"}
    InterferenceCheck -->|"Interference Engine (>80% wɔ Nnɛyi Kar, Diesel Nyinaa) ."| StopCranking["MMƆ CRANK STARTER BIARA: Pistons Ayɛ Contacted Valves; Tow kɔtotɔ Borescope / Leak-Down Check"]
    InterferenceCheck -->|"Engine a Ɛnyɛ Ntwitwiridii (Paw Toyota, Mazda, Ford, Subaru Mfonini Dedaw) ."| TowReplace["Zero Valve-to-Piston Damage: Tow kɔ Shop ma Simple Timing Belt & Nsu Pɔmpɛ Sesa"]

Sɛnea wobɛhu sɛ wo timing belt/chain no abubu vs. fuel pump anaa alternator bi adi huammɔ¶

Sɛ engine bi gyina ɔkwan kɛse so a, ɛsɛ sɛ karkafo ne wɔn a wɔboa wɔ kwan ho no hu wɔ sikɔne 60 mu sɛ ebia timing belt/chain a ɛwɔ mu no bubui anaasɛ fuel pump, crankshaft position sensor, anaa serpentine belt no dii nkogu:

Mfiridwuma mu nipadua: Timing Belt vs. Timing Chain (Nea enti a emu biara di nkogu) .¶

Wɔn a wɔyɛ kar no de kar akwan abien a ɛwɔ mu no biako di dwuma de ma krankshaft ne camshaft ahorow no yɛ pɛ. Sɛ wunim nhyehyɛe a wo kar no de di dwuma a, ɛkyerɛkyerɛ nea enti a entumi nyɛ adwuma yiye ne nea esii wɔ engine no mu no mu:

Interference Engine vs. Non-Interference Engine: So me valve ahorow no bɔɔ piston ahorow no?¶

Mfiridwuma ho asɛmmisa biako pɛ a ɛho hia sen biara bere a bere abɔso anaa bere nkɔnsɔnkɔnsɔn asɛe akyi ne sɛ ebia wo engine no yɛ Interference Engine anaasɛ Non-Interference (Free-Running) Engine:

1. Sɛnea "Interference Engine" Yɛ Adwuma (>80% wɔ Nnɛyi Kar mu ne 100% wɔ Diesel Engine mu) .¶

Sɛnea ɛbɛyɛ a wobenya pɛtro a wɔde di dwuma yiye, nhyɛso dodow a ɛkorɔn, ne mframa a wɔtow gu ho gyinapɛn a emu yɛ den no, ɛkame ayɛ sɛ wɔayɛ nnɛyi cylinder anan, V6, V8, ne diesel engine nyinaa nyinaa sɛ interference engines: - Wɔ adwumayɛ a ɛfata mu no, intake valve no bue kɔ fam kɔ ​​cylinder no atifi bere a piston no retu kwan akɔ fam no, na ɛbɔ mu milisekɔn ansa na piston no asan atu mmirika akɔ soro akodu Top Dead Center (TDC) wɔ 50 revolutions per second (3,000 RPM). - Sɛ timing belt anaa nkɔnsɔnkɔnsɔn no mu paapae a, camshafts no gyae di akɔneaba ntɛm ara, na ɛma intake ne exhaust valves pii yɛ nwini bue kɛse a ɛbata fam kɔ ​​combustion chambers no mu. - Saa bere yi nyinaa, kar a emu yɛ duru no da so ara rehuruhuruw wɔ ɔkwan kɛse no so (anaasɛ krankshaft no da so ara wɔ rotational inertia), na ɛhyɛ crankshaft ne pistons no ma ɛkɔ so pam kɔ ​​soro ne fam akwansin du du pii. - Wɔ sekan 0.1 a edi kan wɔ ɔkwan kɛse so bere abɔso a ɛbɔ no mu no, aluminium piston ahorow a ɛreforo no bɔ dade valve ti a wɔabue no mu tẽẽ wɔ ɔkwan kɛse no RPM so: - Best-Case Interference Scenario: Dade ntini a ɛyɛ tratraa a ɛwɔ 4 kosi 16 intake/exhaust valves no kotow wɔ 15-to-30-degree angle (ɛhwere nhyɛso nyinaa ma enti engine no ntumi nkɔ), bere a aluminium piston abotiri a ɛyɛ den no hu amane wɔ cosmetic nicks nketenkete a ɛte sɛ crescent nkutoo. Sɛ woyi cylinder no ti, sesa valve ne akwankyerɛ a abɔ no, na wode bere nhyehyɛe foforo si hɔ a, ɛma engine no san ba. - Worst-Case Interference Scenario: Valve ti bi fi ne dua no so koraa na ɛtɔ kɔ cylinder no mu, baabi a piston no bɔ no hama kɔ soro te sɛ dade anvil, to tokuru bi fa aluminium piston abotiri no mu, ɛpaapae cylinder no fasu mu, na ɛsɛe engine block no nyinaa.

2. Sɛnea "Non-Interference (Free-Running) Engine" Yɛ Adwuma¶

Wɔ engine a ɛnyɛ nea ɛtwetwe ade mu no, wɔde ɔhyew dan no mu kɔ akyiri araa ma (anaasɛ piston abotiri no wɔ valve-relief notches a emu dɔ) a **sɛ mpo valve bi akɔhyɛ ɔha biara mu nkyem 100 a ɛtrɛw na piston no du ne stroke no atifi pɛɛ (Top Dead Center) a, mframa a ɛda piston ne valve no ntam no da so ara yɛ milimita 1 kosi 3 **: - Sɛ timing belt bi pae wɔ engine a ɛnyɛ interference so wɔ 110 km/h (70 mph) a, engine no gyae tuo kɛkɛ na ɛkɔ mpoano kɔ mmati so a zero internal valve anaa piston damage. - Sɛ wɔtwe kɔ sotɔɔ bi mu pɛ a, mfiridwumayɛfo bi de bolt to bere timing belt foforo a ne bo yɛ dɔla 50 ne tensioner kit so, na ɔde bere agyiraehyɛde ahorow no hyia, na engine no fi ase pɛɛ te sɛ nea biribiara nsii.

Ntɛmntɛm Nkyerɛkyerɛmu: Ntwitwiridii vs. Ɛnyɛ Ntwitwiridii Engines by Make¶

Anamɔn biara kwan ho adansedi: "5-Second Oil Cap Camshaft Check" no.¶

Bere a wode kar asi guardrail bi akyi dwoodwoo wɔ mmati a ignition no wɔ so no OFF, wubetumi asi so dua sɛ ebia wo timing belt anaa nkɔnsɔnkɔnsɔn no abubu wɔ nea ennu sikɔne 30 mu a wunni nnwinnade biara:

1. Pop hood no na hwehwɛ Engine Oil Filler Cap wɔ engine valve kataso no atifi (mpɛn pii no wɔde ngo toa agyiraehyɛde anaa viscosity grade te sɛ agyirae 5W-30 anaasɛ 0W-20).
2. Bue ngo a wɔde hyɛ mu no ano na hyerɛn wo smartphone kanea no mu tẽẽ kɔ fam tokuru no mu:
3. Wɔ overhead-cam engine pii so no, wubetumi ahu dade a wɔayɛ no fɛfɛɛfɛ camshaft lobe, rocker arm, anaa upper timing chain/sprocket a ɛfa oil filler opening no mu pɛɛ (sɛ dade baffle bi siw view no kwan a, hwɛ soro plastic timing belt cover a ɛwɔ engine no fã a ɛfa ɔkwantufo no ho no na hwɛ sɛ wobetumi abue no wɔ soro ano anaa).
4. Sɛ Cam Lobe anaa Nkɔnsɔnkɔnsɔn Bi Wohu: Ma ɔkwantufo bi ntena ofirikafo no nkongua so na bɔ starter no so sikani 0.5 pɛ bere a worehwɛ tokuru a wɔde ngo ahyɛ mu ma no mu (ma nsateaa ne ntade a ɛho ayɛ hare no ntew):
5. Sɛ wote sɛ starter motor no retwa krankshaft a ɛwɔ ase no (zzzzzz), nanso camshaft lobe anaa nkɔnsɔnkɔnsɔn a ɛwɔ oil filler tokuru no mu no tra ɔha biara mu nkyem 100 a enhinhim, wo timing belt anaa timing chain no yɛ nea wɔagye atom sɛ abubu. Gyae cranking ntɛm ara na frɛ lɔre a wɔtwe.

Hwɛ yiye wɔ "Wet Timing Belt" Ngo-Ɔkɔm Cascade (Ford EcoBoost, PSA 1.2 PureTech, VW TDI) no ho.¶

Sɛ woka kar a wɔde "Wet Timing Belt" (Belt-in-Oil) ahyɛ mu - te sɛ Ford 1.0L EcoBoost, Ford 2.0L EcoBlue Diesel, Peugeot / Citroën / DS / Vauxhall / Opel 1.2L PureTech, anaa Honda 1.0L VTEC Turbo - a timing belt a entumi nyɛ adwuma yiye no taa fi ase denam kɔkɔbɔ kanea a ɛyɛ nnaadaa so ansa na belt no abubu ankasa:

1. Sɛnea Wet Belts Sɛe: Esiane sɛ rɔba timing belt no tu mmirika wɔ engine mu ngo a ɛyɛ hyew mu nti, sɛ wɔde engine ngo ho nkyerɛkyerɛmu a ɛnteɛ di dwuma anaasɛ wɔsesa ngo a wɔtrɛw mu a, ɛma belt no ani rɔba no hohoro na ɛpaapae kɔ rɔba tuntum nketenkete mu.
2. The Red Oil Pressure Light & Hard Brake Pedal Warning: Saa rubber belt crumbs no sink kɔ oil pan no ase na siw mesh screen a ɛwɔ oil pump pickup tube no mu (ne vacuum pump screen no).
3. Nna anaa simma kakraa bi ansa na bere timing belt a ɛyɛ nsu no abɔ ankasa no, Red Low Engine Oil Pressure Warning Light (oil can icon) no hyerɛn wɔ dashboard no so na breki pedal no dannan denneennen (efisɛ vacuum pɔmpɛ a ngo kɔm de no no gyae sɛ ɛbɛyɛ breki vacuum).
4. Sɛ wohu Red Oil Pressure kanea no anaasɛ wote breki pedal a ɛyɛ den wɔ engine a ɛwɔ wet-belt so a, twe kɔ na to engine no OFF wɔ sikani 30 mu - sɛ wugyina ansa na wet belt a ngo kɔm de no no abubu ne sẽ no gye engine no fi ɔsɛe a ɛyɛ hu a efi valve-to-piston mu.

Mpɔtam hɔ ntɛmpɛ nɔma ne adwumakuw no nhyehyɛe ahorow¶

Esiane sɛ bere bɛlt anaa nkɔnsɔnkɔnsɔn a asɛe no ma ahoɔden a wɔde tu mmirika no hwere ntɛm ara, koraa wɔ ɔkwan kɛse so nti, sɛ wubefi kar akwan a ɛte ase so na woabɔ wɔn a wɔte mu no ho ban afi akyi a ɛbɛbɔ ho a, ɛno ne ade a ɛho hia wo sen biara:

Nsɛm a wɔtaa bisa¶

Dɛn nti na me breki no danee den te sɛ ɔbotan bere a engine no wui wɔ ɔkwan kɛse no so pɛɛ?¶

Wo kar no hydraulic breki no de vacuum breki booster canister a wɔde ahyɛ ogya fasu no so a ɛde ne ho to vacuum suction a efi engine a ɛretu mmirika no intake manifold (anaasɛ mfiri a wɔde yɛ vacuum pump a camshaft no na ɛka) so na ɛma wo nan nhyɛso no dɔɔso mpɛn 3 kosi 4. Bere a timing belt no mu paapae na engine no gyae twitwiw no ara pɛ no, wɔmma mframa foforo biara mma, na ɛma mframa a ɛdɔɔso a akyea wɔ booster canister no mu ma breki a wɔde mia no daa 1 kosi 2 pɛ. Sɛ wo mia na wogyae pedal no mprenu pɛ a, saa vacuum a wɔde asie no ayera na ɛsɛ sɛ wode nan ahoɔden a ɛnyɛ den a emu duru yɛ kilogram 50 kosi 75 (nkaribo 110 kosi 165) pia hydraulic piston a wɔmmoa no no na ama kar no agyae.

Mɛyɛ dɛn atumi de nnyigyei a ɛwɔ starter no mu ahu sɛ ebia me timing belt no bubui?¶

Yɛ atie sɔhwɛ biako a ɛyɛ sekan 1 a wɔfrɛ no "starter cadence test." Mpɛn pii no, sɛ wo crank engine bi a, starter motor no yɛ rhythmic, pulsing "uh-uh-uh-uh" nnyigyei bere a piston biara a ɛreforo no ko tia 150 PSI a ɛyɛ mframa a ɛhyɛ ne cylinder mu a wɔakyere no. Sɛ timing belt anaa nkɔnsɔnkɔnsɔn bi bubu a, camshafts no gyae kankyee na ɛma valve ahorow no da hɔ, na ɛma nhyɛso a ɛwɔ cylinder ahorow no mu no fi hɔ; nea efi mu ba ne sɛ, starter motor no de anyinam ahoɔden nnyigyei a ano yɛ den, ɛyɛ mmerɛw koraa, a enni cadence ("zzzzzzzz") te sɛ afiri a wɔde pam ade anaa power drill twitwa crankshaft no ntɛmntɛm sen sɛnea ɛte daa no mmɔho abien.

Sɛ me interference engine no twaa ne timing belt no mu wɔ 100 km/h (60 mph) mu a, so wɔahyɛ bɔ sɛ wɔbɛka engine no nyinaa abom?¶

Ɛnyɛ bere nyinaa - bere a ɛkame ayɛ sɛ valve ahorow bi bɛbɔ bere a timing belt bi abɔ wɔ interference engine so wɔ ɔkwan kɛse so ahoɔhare so no, engine no ase awiei (engine block, crankshaft, connecting rods, ne pistons) tra ase a enni dɛm wɔ bɛyɛ ɔha biara mu nkyem 60 kosi 70 mu sɛ ofirikafo no dan kɔɔ Neutral ntɛmntɛm na wankɔ so ankra starter motor no wɔ mmati so a. Mfiridwumayɛfo betumi de fiber-optic borescope mfoninitwa afiri a wɔde fa spark plug ntokuru no mu ahwɛ piston ahorow no atifi wɔ simma 15 mu; sɛ valve ti biara antwa na ɛtow piston abotiri bi a, mpɛn pii no, sɛ wobeyi cylinder ti no na woasesa valve ahorow a abɔ ne timing belt kit no a, ne bo nyɛ den sen engine no nyinaa a wɔbɛsesa.

Dɛn nti na me timing belt no bubui ɛmfa ho sɛ me kar no wɔ akwansin 55,000 (kilomita 88,000) pɛ wɔ odometer no so no?¶

Bere nyinaa wɔde akyirikyiri NE bere ABIEN na ɛkyerɛ bere a wɔde besi ananmu - mpɛn pii no akwansin 60,000 kosi 100,000 (95,000 kosi 160,000 km) ANAA mfe 7 kosi 10, nea edi kan biara. Sɛ wɔde kar twa akwansin 5,000 pɛ afe biara mpo a, rɔba bere a wɔde yɛ adwuma a adi mfe 12 no fa ɔhyew kyinhyia mpempem pii a ɛyɛ hyew kosi awɔw mu ne ozone oxidation a ɛma rɔba a wɔayɛ no we kosi sɛ sẽ no bɛtetew, anaasɛ srade a ɛwɔ nsu pɔmpɛ anaa tensioner bearing no mu no yow na ɛkyere pulley no.

So engine ahorow a dade nkɔnsɔnkɔnsɔn wom no bubu te sɛ rɔba bere timing belt da?¶

Aane. Ɛwom sɛ dade nkɔnsɔnkɔnsɔn a wɔde hyɛ nkɔnsɔnkɔnsɔn mu no nsɛe esiane onyin nti te sɛ rɔba abɔso de, nanso wɔde wɔn ho to engine mu ngo a wɔahyɛ no den so de sra dade pivot pin nketewa ɔhaha pii na ɛde nhyɛso ba hydraulic chain tensioner a ɛpia kɔ plastic nkɔnsɔnkɔnsɔn akwankyerɛ a ɛyɛ kurukuruwa so. Sɛ wɔtrɛw ngo a wɔsesa no mu kyɛ dodo, sɛ ngo no so tew wɔ engine no mu, anaasɛ sɛ plastic nkɔnsɔnkɔnsɔn akwankyerɛfo a ɛyɛ mmerɛw no mu paapae wɔ akwansin 100,000 akyi a, nkɔnsɔnkɔnsɔn no trɛw, ɛbɔ denneennen anɔpa a awɔw wom a efi ase no, ɛhuruw sẽ fa camshaft sprockets no so, anaasɛ ɛbɔ koraa denam valve-to-piston a ɛsɛe no pɛpɛɛpɛ sɛnea bere timing belt a abubu no so.

Akwankyerɛ ahorow a ɛfa ho¶

• Serpentine belt a abubu: onwini, charge, ne power steering a ɛyera
• Breki a entumi nyɛ adwuma yiye bere a woreka kar no
• Power steering a entumi nyɛ adwuma yiye anaasɛ steering wheel lock bere a woreka kar no
• Ɔkwan ho asiesie a egye ntɛmpɛ ne ɔhaw ahorow a wodi ho dwuma

Fibea ne aban akwankyerɛ¶

• Ɔman Ɔkwan Kɛseɛ so Kar Ahobanbɔ Dwumadibea (NHTSA, United States): Federal Motor Vehicle Safety Standard (FMVSS) No. 105 & No. 135 - Kar Breki Nhyehyɛe a Ɛyɛ Hare: Tumi-Assist (Vacuum Booster Depletion) Gyinae Akyirikyiri ne Pedal Force Gyinapɛn a adi nkogu.
• Kar Mfiridwumayɛfo Kuw (SAE Amanaman Ntam): *SAE J1313 / Synchronous Belt Drive (Timing Belt) ne Roller Timing Chain Ɔbrɛ, Hydraulic Tensioner Ratchet Design, ne Valve-to-Piston Clearance Analysis *.
• Amerika Kar Fekuw (AAA, United States) & Royal Automobile Club (RAC, United Kingdom): Ɔkwan ho asɛe ho Nhwehwɛmu a ɛfa Engine a Ɛgyina Mpofirim, Camshaft Belt a Adi huammɔ, ne Ahobammɔ a Wɔyɛ wɔ Mpoano Ho.
• Allgemeiner Deutscher Automobil-Club (ADAC, Germany): Zahnriemenriss und Steuerkettenschaden während der Fahrt (Timing Belt Snap ne Timing Chain a ɛdi huammɔ bere a woreka kar): Ofirikafoɔ nneyɛeɛ ntɛm ara ne Engine asɛe ho nhwehwɛmu.
• Amanaman Nkabom Sikasɛm Bagua a Ɛhwɛ Europa So (UNECE): Mmara a Ɛto so 13-H - Nsiesiei a Ɛyɛ Pɛpɛɛpɛ a Ɛfa Akwantufo Kar a Wɔpene So wɔ Breki Ho (Residual Braking Performance Without Engine Vacuum Assist).