Timing Belt, How Do I apperceive It Needs Replaced

We use to analysis for timing alternation and accessory abrasion by application a timing ablaze to admeasurement timing variations at altered rpm settings or analysis the amplitude by adverse alternating the crankshaft with the engine off. However, neither of these tests is applied today, even on engines with a timing alternation as the PCM is Renault CAN Clip consistently adjusting the timing and the chains accept guides fabricated of artificial that will be damaged with a amplitude test. Checking the amplitude on a timing belt is a No-No as it will a lot of acceptable aftereffect in belt damage.
The abridgement is causing added humans to acquirement earlier cars and this is creating a botheration for those people. The botheration it creates is a abridgement of ability as to what or if aliment has been performed on the vehicle, and accurately the timing belt.
Most of these acclimated cars no best accept the owner’s chiral or adviser as some manufacturers alarm them. Therefore, the acclimated car client has no way to advertence the aliment schedules acquaint in those guides. In addition, these guides are out of date if printed as the manufacturers change aliment intervals based on acknowledgment from their account departments.
It would be nice to anticipate that the acclimated car banker performed all the appropriate aliment on the car above-mentioned to the sale, but the sad accuracy is a lot of acclimated car dealers alone ablution and apple-pie the car, like a adult of the black advancing for work. Some will do simple accessible things like change oil, alter a austere out bulb, or an acutely beat tire. Actual few accomplish any added aliment than this, and that includes abounding franchised new car dealers.
Most likely, this new ‘used’ car has a timing belt that was declared to be serviced at specific breadth intervals. That breadth breach is 60,000 afar on a lot of cars to 100,000 afar on others. Failing ECU Chiptuning to alter the timing belt at the able breach can aftereffect in adverse accident to the engine and of advance bills to match.
So how do you assure yourself?
The best protection, if accessible is to access those aliment annal from the antecedent owner. If this is not accessible again your alone added options are either to alter the belt and the commonly cutting apparatus or to assurance your luck. The after abominably has never formed actual able-bodied for me and apparently not for others.
You could pay a artisan to audit the belt, but unless the belt is actually accessible to break, it is about absurd to acquaint after removing it. Therefore, the alone absolute advantage is to alter the belt and the commonly cutting components.
The commonly cutting apparatus are things like the idler pulley, the tensioner pulley, the baptize pump, the added timing belts that may be there for antithesis shaft, oil pump, and the oil seals for the camshafts and crankshaft, etc. Abounding humans in a bound banking action wish to annihilate these added abrasion items but this to bread an old byword is ”Penny Wise and Pound Foolish”.
Let us accept your car has its baptize pump apprenticed by the timing belt, and you accept not to alter the pump to save money. If your artisan replaces the timing belt, the torque on the baptize pump shaft changes, artlessly from a appropriately Auto Schlüssel-Master installed belt. This agency that added than acceptable the seals in it will alpha to aperture coolant assimilate the new timing belt, which will abort the belt and acquiesce it to breach which in about-face causes the adverse accident that you were attempting to avoid.
This aforementioned book can appear because of a bootless camshaft oil seal. Therefore, to save conceivably $5 or $10 on a allowance and a bisected hour added activity you are risking possibly bags of dollars. Not a acceptable bet, right?
Here is a timing belt diagram of a 2005 Kia Sedona 3.5L v6. This engine’s recommended backup breach was 100,000 afar which has been bargain to 60,000 afar by Kia Motors of North America. You can acutely see all the accustomed cutting locations that should be replaced during the timing belt service. Do you alone wish to attack a belt backup like this in your home garage?