Just wondering what the record is. I changed the one on my '93 3L @ 100k and it was still in good shape

 

122,000 miles on mine right now Need to get it changed SOON!

 

129k on mine. planning on changing it w/in the next 3 months

 

I changed mine at 83K. I have seen too many break to take any chances. This is not a record I would want to break...no pun intended

 

I'll change mine when it breaks, got a spare in the truck just in case.....

 

Wow... really? I woudn't want to be pulling the engine front off on the trail at dusk!

Of course. that said, mine's at 137k...

 

Actually if the belt brakes you're just going to need a tow;the 3.4L is a non-interference engine so no damage should occur in the event the belt breaks. If I'm wrong then let me know since I think mine needs a change.

 

w/ the right tools, the belt can be changed in about an hour in an emergency.

when doing maintenance, the waterpump gets changed, adding about an hour to the job.

 

I changed mine @ 73K, taking no chances.

 

102,500 with factory belt..

I would like to change my timing belt soon...The waterpump was changed about 20,000 miles ago after it broke so I guess I don't need to change the pump when I change my timing belt

tomrunner

 

pulling the front off the engine is quite easy for me and shouldn't take any longer than a few hours max (figuring in possible problems) besides the belt can break at any time, there is no guarrantee on when.

BTW I have aprox 70,000 on this engine/belt.....

 

heys guys those of you that know about timming belts....what is a non interference engine? i have a '90 4runner v6 and the timming belt busted....and i was told that the engine is fine that toyota has a non interference engine and that just to replace the timming belt and keep on going....is that tru???? anyone????

 

The easiest way to think of this is to take the word "interference" literally, and in this case, it refers to the valves possibly "interfering" with the piston in a cylinder.

In an interference engine, the valves open far enough that if the timing was off, the piston could come into contact with the valves, and that would be plain ugly. In a non-interference engine, the valves never open far enough to hit the piston.

So... if a timing belt/chain breaks in a non-interference engine, the engine will stop, but you won't have any internal damage. If that happens in an interference engine (and especially if it happens at speed), you're in for a big BANG as the piston will slam into the open valves.

 

I agree, but "a few hours" is my point in bringing up doing it at dusk.

"...as the winter's light fades, and the coldness of the dark approaches, the lone trail boss reaches for his 12mm socket. With a determination to be done before dawn, he spins the ratchet on the first bolt."

 

Not to hijack the original intent of this thread, but i recently bought my 4Runner in Jan. with 94k on it..is there any way to see if the timing belt was changed once before i bought it? I bought it from a Toyota dealer so is that possibly something they would check before reselling? I think i may be giving dealerships to much credit here but....Thanks in advance

 

Did you do that yourself? If not, are you sure the belt wasn't changed w the pump? I know if it were me, a new belt would go on if I were going after the water pump...

 

mine has 3000 on it. the old one had 102,000 on it. if the belt breaks it WILL F up your engine!!!!!! the valves will get thrashed!!! so dont keep it on your car till it breaks! and i had a toyota guy change mine, with me, and it took him almost 3 hours with air tools , he does these things everyday, i dont get how any of you say you can do it in 1 hour !!!!

 

In the US, a common dealership practice is to put an "official" sticker in the engine compartment stating the mileage and date of the last timing belt change. Generally speaking, the dealer will also log the change in a database. If you call or go in to the dealer of the city that the vehicle resided in previously, you may be able to coax some maintenance information out of them via the VIN. Just be sure to make it VERY clear that your only intent is vehicle maintenance history, and make no mention of obtaining any personal information regarding the previous owner.

When in doubt, change it out.

 

You forget where I live, when the sun goes down, is when the work begins. During the daylight it's much too hot, so usually I wait til evening to start any projects. Out in Johnson's Valley it's usually too hot to wheel in the summer, so we wait til around 8 pm to head out on the trails and get back by morning.

Do you remember this thread;
I blew up My motor I was in the process of tearing apart the whole intake when I realized that it wasn't gonna help.....

 

I saw a Rodeo the other day with 240K miles on it. The belt looked like string cheese after a five year old tore into it. It was ugly. Don't know if they are interference.