O'Sullivan's Garage

Timing Belts

In an engine, the timing belt/chain connects the crankshaft to the camshaft(s), which in turn controls the opening and closing of the engine's valves. Timing Belt diagramA engine requires that the valves open and close once every other revolution of the crankshaft. The timing belt/chain does this. It has teeth to turn the camshaft(s) synchronised with the crankshaft, and is specifically designed for a particular engine. In some engine designs, the timing belt may also be used to drive other engine components such as the water pump and oil pump.
Timing belts must be replaced at the manufacturer's recommended distance and/or time periods. If you are unsure about your car, then just give us a call and we can tell you.
We replace timing belts on all Makes and Models for cars,vans and 4X4 and have the specialist equipment to carry out the job. Give us a call on 063-86123 to book your timing belt change.

Why a Timing Belt must be replaceed

Failure to replace the belt can result in complete breakdown or catastrophic engine failure. The owner's manual maintenance schedule is the source of timing belt replacement intervals, typically every 60,000 to 90,000 miles (approx 96,000 to 144,000 kilometres). It is common to replace the timing belt tensioner at the same time as the belt is replaced. We can tell you what the manufacture recommends to be changed with the timing belt.

The usual failure modes of timing belts are either stripped teeth (which leaves a smooth section of belt where the drive cog will slip) or delamination and unraveling of the fiber cores. Breakage of the belt, because of the nature of the high tensile fibers, is uncommon. Correct belt tension is critical - too loose and the belt will whip, too tight and it will whine and put excess strain on the bearings of the cogs. In either case belt life will be drastically shortened. Aside from the belt itself, also common is a failure of the tensioner, and/or the various gear and idler bearings, causing the belt to derail.

O'Sullivans Garage Service Offers
On the wrist, they offer a conservative look that many people welcome, but with just enough novelty to be replica watches sale. Back in 2012, Rolex released a rare brand new model with the Sky-Dweller timepiece family (debuted here). I say "rare" because it is not common for Rolex to release a totally new replica watches uk of timepieces - with also a new name. The Rolex Sky-Dweller is also among the most complicated modern watches, because it contains a movement that combines both a GMT indicator as well as an annual calendar (it rolex replica watches both the date as well as the month, so you only need to adjust the date on those years where February does not have 28 days). From a technical replica watches uk, the in-house made rolex replica calibre 9001 automatic movement is rather cool.