Drive Belt and Timing Belt

**suysuy** · February 13th, 2009 12:45 PM

Magkapareho ba ito? Nalilito kasi ako eh. Ano ba ang kaibahan nito? Ive googled na kaso lito parin hehe. Yung timing belt ba hindi nakikita? dahil nasa loob ito ng engine? so yung nakikita mo is yung drive belt? yung may alternator compressor etc?

paki clarify nalang po hehe

**oj88** · February 13th, 2009 02:15 PM

Originally Posted by suysuy

Magkapareho ba ito? Nalilito kasi ako eh. Ano ba ang kaibahan nito? Ive googled na kaso lito parin hehe. Yung timing belt ba hindi nakikita? dahil nasa loob ito ng engine? so yung nakikita mo is yung drive belt? yung may alternator compressor etc?

paki clarify nalang po hehe

Timing belt, pwedeng exposed or hidden. Usually hidden, lalo na kung timing chain. In either case, eto lang tatandaan, ang timing belt or chain ang nagpapaikot ng cams, na sya naman nagbubukas/sara ng intake and exhaust valves. Simply, kailangan synchronized ito sa crank, hence the word "timing".

Drive belt naman ang nagpapaikot ng power steering, alternator, water pump at A/C. At di tulad ng timing chain, hindi ito kailangan naka sync sa crank.

**XTO** · February 13th, 2009 02:30 PM

timing belt - nasa loob, nagpapaikot sa engine internals

drive belt/s - external - driver ng water pump, power steering, a/c compressor and alternator. madalas tawag dito ay as fan belt

**suysuy** · February 13th, 2009 08:04 PM

hehehe thanks mga peeps! nalito lang talaga kasi ako. nabasa ko kasi sa net eh delikado maputol ang timing belt. so kung maputol if ever and drive belt, makakasira rin ba ito ng engine?

**Bogeyman** · February 13th, 2009 08:13 PM

Originally Posted by suysuy

hehehe thanks mga peeps! nalito lang talaga kasi ako. nabasa ko kasi sa net eh delikado maputol ang timing belt. so kung maputol if ever and drive belt, makakasira rin ba ito ng engine?

Pag drive belt ang naputol, pwede mo pang patakbuhin ang sasakyan (dahan-dahan nga lang).

Pag timing belt ang naputol, hindi lang makina ang lagot, pati bulsa mo.

**oliver1013** · February 13th, 2009 08:14 PM

^Mahirap maputulan ng timing belt..yung L300 ko naputulan...nabali lahat ng valves, nabingkong (bumaluktot) yung camshaft...umabot ng 20k damage...not to mention yung binayad ko sa tow truck...sabi ng mekaniko ko swerte pako dahil hindi nabutas yung cover ng engine ko...ibang expenses pa yung mga oil seals

**XTO** · February 14th, 2009 12:11 AM

kung drive belt/s ang naputol, hindi naman nakakasira ng engine. depende sa sasakyan kung alin ang magkakasama sa belt/s nila. kadalasan hiwalay ang para sa alternator, magkakasama naman ang a/c, p/s, water pump (sa crosswind doble ito kaya very safe)

kung alin sa kanila ang mapuputol. minsan 2 or more ang drive belts kaya depende kung alin. kung sa alternator, di kakarga battery, water pump - overheat at kung sa a/c- mawawala lamig.

**v6dreamer** · February 14th, 2009 05:15 AM

If your engine is non-interference you dont have to worry about, just replace the timing belt, time it then your on your way. If not when the timing belt breaks it will bend all your valves or valves have pushed holes through the piston crowns and if this happen, youll need a new engine. It really will ruin your car big time.

**4JGtootsie** · February 14th, 2009 10:20 AM

Aside from what has been mentioned.
Drive belts is designed to slip a little when load is applied allowing obsorbtion of force. While timing belt or chain should never slip, jump or slide so as to maintain proper synchronization of cam, balancers, injection pumps and crankshaft.
Engines with timing belts are more silent than those with chains and gears.

**oj88** · February 14th, 2009 11:27 AM

Originally Posted by 4JGtootsie

Aside from what has been mentioned.
Drive belts is designed to slip a little when load is applied allowing obsorbtion of force. While timing belt or chain should never slip, jump or slide so as to maintain proper synchronization of cam, balancers, injection pumps and crankshaft.
Engines with timing belts are more silent than those with chains and gears.

I don't think that drive belts (in a car's engine) are designed to slip. If so, you'll be hearing squeals every time the A/C kicks in, for instance.

In fact, squealing is one sign that the belt tensioner needs adjustment or that the belt itself has stretched beyond it's service life.

Most modern cars have wider multi-groove belts that mates with pulleys that have multi-grooves as well. This adds grip between the belt and the pulleys it's turning to mitigate slipping. And since there's less sliding, it's quieter.

(See cross-section of the belts below) The older or traditional belt which was prone to squealing is known as the v-belt (left). While the multi-groove belt is better known as the serpentine belt (right).