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Car
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We
timing belt services, as needed, for all import and domestic vehicles Call
today to see if your vehicle requires a timing belt service and the
interval at which it may be due. Import: Acura
Audi
BMW
Honda
Infiniti
Jaguar
Land Rover
Lexus
Mazda Mini Mercedes Benz
Nissan
Porsche
Toyota
Saab
Subaru
Volkswagen
Volvo.
Domestic:
Buick Cadillac Chevrolet Chrysler Dodge Ford Jeep GMC Lincoln.

Timing Belts
How
do I know if my car has one?
Check your
owner's handbook, or call us. If you are lucky enough to have one of the
handful of models that use a timing chain you will not have to worry about
this service. Whether or not a vehicle has a timing belt or timing chain
may be something to consider when buying a new car.
How
long do they last? For most cars it is 60,000
miles or 4-5 years, whichever comes first. On some vehicles the maintenance
mileage interval is as low as 30,000 miles and some are over 100,000 miles.
Check
your owner's handbook, or call us we can look it up for you. Why the time
period in lieu of miles? Because belts are are made of a rubber material
similar to the hoses in your cooling system. This rubber material will
deteriorate over time. This is especially prevalent in our hot, humid
climate (Have you noticed how the old rubber bands in your desk rot over
time?). Over the years we have seen a number of vehicles that, though well
below the recommended mile interval for replacement, had broken timing
belts when several years old.
The timing belt job can be costly and
some owners may sell their vehicle before having this work done. Most of
the time there is no way to tell the work has been done by looking at the
engine. When buying a used vehicle see if the seller can provide
documentation showing the timing belt has been changed. If you bought the
vehicle without a service history, it may be safest to have the belt
changed as soon as possible.
What happens if
it breaks?
Interference
engine vs. non-interference engine.
If timing the belt breaks
on any type of engine, your engine will quit without warning- period. Pull
safely over to the side of the road and call for help. Depending on whether your
engine is an "interference" or "non-interference-
free-running engine" you may or may not experience major
engine damage.

What happens on a "non-interference
or free-running" engine?
If the timing belt breaks on a free-running
engine the engine stops, and your greatest additional expense may be a towing
fee to get your car to the shop. Aside from the unexpected inconvenience,
and the tow bill, your bill will probably not be much different than if
you just took it to the shop and had it replaced. No
mechanical damage occurs and the installation of a new belt is basically
you need to get you on your way.
What happens on a "interference" engine?
If the timing belt breaks on an interference
engine, major engine damage usually does occur. It most commonly involves open valves
being struck by pistons as the engine continues to turn to a stop after
the belt breaks. The camshaft stops opening and closing the valves and the
ones that happen to be open get struck by the pistons in their cylinder.
Sometimes just the valves are bent. Sometimes a piston may be damaged, or
worse. The bottom line is an otherwise needless expensive repair that could have been
avoided had the belt been changed at the recommended time or service interval. In
extreme cases, a complete replacement engine may be required.
Is there anything else I
should ask about when replacing my timing belt at the normal service
interval?
When having your timing belt replaced
it is a good idea service the following:
-
Timing
belt tensioner. You may want to consider replacing your timing
belt tensioner when doing the timing belt job. There are a few
different types of tensioners. There are hydraulic tensioners, spring
loaded tensioners and mechanical tensioners. Like the belt they can
wear out, too. If the timing belt tensioner fails you will probably
experience the same damage as if the belt broke. The tensioners job is
to keep the teeth of the belt firmly seated into the teeth on the
gears it drives. If the tensioner gets weak or fails, the belt can
"jump time," which may also cause the pistons to hit the
valves.
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Serpentine
or engine drive belts. You may want to have your serpentine or engine
v- belts that drive the engine accessories (alternator, power
steering, air conditioner compressor, etc.) replaced because they have to come off
anyway to get to the timing belt. So generally there is usually no extra labor in replacing them.
You may also want to consider replacing the serpentine belt tensioner,
if so equipped. Often, particularly with an older tensioner, when the
tension is released to take the belts off the engine and then
re-tensioned after re-installing the belts an older tensioner may fail
a short time later.
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Front
engine seals. You may want to have your front engine oil seals replaced, as
equipped. This may include cam seals, crankshaft seal, intermediate shaft seal, and
countershaft seals. This is because if you don't, the original seals may not make it
through the life cycle of the new belt. If they begin to leak the
timing belt has to come off again to replace them. Usually this is
before it's time to replace the new belt. In which case, the job has
to be done all over again. High engine temperatures cause these
seals to become hard and brittle allowing them to leak. When this
happens engine oil will saturate the timing belt causing it to break.
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Replace
your water pump. You may want to have your water pump replaced. Once the timing belt is off, for most cars, the
water pump takes very little additional time to replace. Usually, the
greatest part of the additional expense is in the part itself! If the
pump is not replaced and fails, as with one of the front engine seals,
the whole job has to be done over
again to gain access to the pump.
-
Service
your cooling system. If you decide to do the water pump, you may
want to consider replacing the engine coolant (also called
anti-freeze) at that time. When taking off the water pump, the cooling
system has to be drained. So, it's a good idea to replace the coolant
at that time. You may also want to consider a new thermostat and
cooling system hoses, particularly on an older car.
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