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Club Member
Location:
sydney
Registered:
May 2002
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4AG Cam Belts
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Tue, 23 July 2002 11:02
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Just wondering how many of you 4AG owners have had a broken or damaged timing belt? If you have had this happen please tell me why it was caused how many Kms the belt had done roughly and what you were doing at the time, i.e. how hard were you revving what gear and roughly what speed you were doing. Also which version of the all-mighty G you have would help too 
Im trying to get an idea of how reliable they are for a future project....I really dont want one to break at a bad time or preferably at all and want to know how long they are lasting on average.
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Location:
cambo
Registered:
May 2002
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Re: 4AG Cam Belts
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Tue, 23 July 2002 11:39
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why dont you just replace them when they are due, i think toyota recomend every 100 000 kms???? if your parranoid do it more often. frequently check the belt for cracks, fraying etc it shouldnt break.
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Toymods Board Member
I supported Toymods
Location:
Turramurra, Sydney.
Registered:
May 2002
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Re: 4AG Cam Belts
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Tue, 23 July 2002 14:37
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I'm planning on replacing mine soon, as it seems to be the factory belt, and from my guesstemation, would have done maybe close to 200,000......
This is going by me having done probably 60,000 ks while I've owned it, & I bought it (in a celica) off a guy who owned it for something like 2 years, & he bought it off the guy who did the conversion into the celica. So it's on it's atleast 4th owner (that's if it had only 1 owner in Japan) and it's still going.
I would have changed it earlier, but once I heard about 4As being non-interferance I sorta relaxed a bit.... but it is getting pretty high up my things to do list.
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Location:
Montrose, VIC
Registered:
May 2002
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Re: 4AG Cam Belts
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Wed, 24 July 2002 00:36
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Yeah, I understand they will keep on hanging together for a while even with teeth missing etc. - but hey, replace it if you are at all worried. I've thought about replacing mine, but then again I'll probably break something else in the engine before that long anyway, so I'm kinda slack about it. If I blow a head gasket or something (detonation) then I might cut sick on the head while I'm at it (porting, cams, etc.) and replace the belt and everything else while I'm at it. I might even rebuild the whole engine. Or, better yet, back to the wreckers, grab another one, throw it in, and just heap the abuse on it all over again and watch it keep begging me for more 
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