cambelt toyota yaris1.5vvti t-sport

The wife's old Y reg T Sport was chain cam....!

there isn't one, so you don't change it.

Mrcheerful

Its a chain on this engine. There is no change interval. You keep the oil clean and fresh and if you hear strange noises from the chain area, you either sell the car, or replace the chain and tensioner. (like a micra, its not a difficult job)

Tim. .

thanks paul,mrcheerful and tim, I have no info on it at all, i presumed it had a belt. One less worry then.

It never does to presume.

"gazzafield" wrote in message news: snipped-for-privacy@pipex.net...

but, at least i didnt presume it had a chain, and then a belt snaps

Absolutely, I'm not entirely sure what Gazzafield is trying to say - presume it's something that needs changing, enjoy that it doesn't! :p

IMHO another reason why Toyota enjoys an enviable reputation for reliability, unlike some manufacturers who are laying off thousands of workers and are closing factories down.

Surely after all these years designers must know about the shortcomings of timing belts, so why are they still designing engines with belts and tensioners which fail prematurely, knowing full well that it could cause thousands of pounds worth of engine damage, it wouldn't be quite so bad if they put a little bit of extra thought into the design to make it a very simple and straightforward job to replace, after all they know it's a serviceable item which will probably have to be changed several times in the vehicles lifetime.

[...]

Belt systems can (and are) designed to last for 100,000 miles. Replacement is generally fairly easy/inexpensive.

Cam chain and tensioner systems are not immune from failure; the results are the same as a belt failure. My brother's (chain cam engined) Corolla suffered from the engine sprocket disintegrating with predictable major damage. It was just under three years old, less than 50k on the clock, always main dealer serviced. The dealer that repaired it did not think it that unusual an event...

Certain VAG engines with chains suffer from the chain wearing at around

100k. Replacement costs are from 1,000UKP!

A *well-designed* belt driven system is unarguably better than a poor chain driven one!

Chris

A friend of mine found that out the hard way with the infamous Merc

308D engine. The teeth on the camshaft pulley gradually wore away, caused the chain to slip off and lunched the valvegear.

Try an Estima then say fairly easy :)

Chris