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Is it true for rear seat belt?

 
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Old 10 Apr 2008, 12:44 am
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Exclamation Is it true for rear seat belt?

Currently I find that both side of rear seat belt don't hold when I pull them suddenly. I asked my dealer. They said they will work when the car moves.Is it truely.Why is it so complex?
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Old 10 Apr 2008, 05:06 am
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Default Re: Is it true for rear seat belt?

Most seat belts have a weight that swings forward when the brakes are applied, they are not controlled, but are free swinging, at least that is the way they used to be. Cartman or someone may have a better explanation.
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Old 10 Apr 2008, 08:56 am
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Default Re: Is it true for rear seat belt?

Quote:
Originally Posted by Hooligan View Post
Most seat belts have a weight that swings forward when the brakes are applied, they are not controlled, but are free swinging, at least that is the way they used to be. Cartman or someone may have a better explanation.
Ditto. It should work when the car decelerates suddenly. Have someone sit in the back and try leaning forward during a panic stop on an open stretch of road. It should work then. Shouldn't work when at a stand still.
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Old 10 Apr 2008, 10:39 pm
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Default Re: Is it true for rear seat belt?

most rear seat belts that dont have a pyrotechnic pre-tensioner will use some sort of mechanical stop. there is no electrical connection of any kind to the rear seat belts of the PT, so ther isnt any way for the belts to tell if the car is moving, that dealer needs his head examined. i believe if you buckle yourself in, then test them, a sudden jerk should lock them. as far as i know, the belts have to be out a certain amount for the lock mechanism to operate correctly.
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Old 11 Apr 2008, 11:31 am
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Default Re: Is it true for rear seat belt?

Quote:
Originally Posted by Cartman View Post
most rear seat belts that dont have a pyrotechnic pre-tensioner will use some sort of mechanical stop. there is no electrical connection of any kind to the rear seat belts of the PT, so ther isnt any way for the belts to tell if the car is moving, that dealer needs his head examined. i believe if you buckle yourself in, then test them, a sudden jerk should lock them. as far as i know, the belts have to be out a certain amount for the lock mechanism to operate correctly.
You don't need an electrical sensor to tell you the car is moving. You can use a mechanical device that will activate only when under deceleration. I believe they use a large ball bearing that blocks the locking mech when it's at the bottom, then when you decelerate, the ball slams forward out of the way and allows the mech to lock. I had a Sentra that had a seatbelt mech like that.
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Old 11 Apr 2008, 01:15 pm
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Question Re: Is it true for rear seat belt?

I just need a simple function,not so complex. My car is 2004 pt. If there are someone have the same issue?
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Old 11 Apr 2008, 09:46 pm
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Default Re: Is it true for rear seat belt?

ok, did you try running the belt out a little, then jerking it? it should lock if you do that.
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Old 11 Apr 2008, 10:49 pm
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Unhappy Re: Is it true for rear seat belt?

Shit, I have tried as that way. It doesn't work.
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Old 11 Apr 2008, 11:13 pm
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Default Re: Is it true for rear seat belt?

Quote:
Originally Posted by ldlsamuel View Post
Shit, I have tried as that way. It doesn't work.
Just have them sit in the front??
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Old 12 Apr 2008, 03:48 pm
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Default Re: Is it true for rear seat belt?

ok, if the seat belt DOESNT work when you have it partially pulled out, then the inertia sesitive mechanism inside the belt is bad and the belt assembly NEEDS TO BE REPLACED. dont fooll around with belts, if there is ANY question, REPLACE IT.
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