seatbelt pre tensioners

[webvtr]

someone please help me. What does a seatbelt pretensioner do>? Is it wen u yank on the belt and it stops coming througgh (gettin longer)?
Please ghelp as im clueless

[Simo]

No, youre talking about a mechanical brake...

The pretensioner is activated in the event of a crash.

When the seatbelt tightens in a crash, a piston fires, which provides extra pull on the seatbelt... or something like that.

I removed mine a while back and had a little look at their design.

[webvtr]

are they life saving?

[Simo]

Could be.... they are part of the safety restraint system.

[webvtr]

right simo m8. If ya put racin seats in the front is therre no way to reconnect the pretensioners so they wil still work in the event of a crash?

[Simo]

Not if you use race harnesses...

The pretensioners pull on the buckle end of the seatbelt... the bit near the handbrake side.

I cant rememebr the layout properly.. you'd have to take the plastic cover off and have a look. It may be possible to have them functional.. if you keep the std seatbelts and are able to mount the mechanism properly! (check design though)

[andy2pac]

I have my pretensions in with standard seatbelts on my buckets seats they just mount on the side like they do on origanal seats! I also have harnesess lol they dont work with the harnesess thou

[sax_stu]

yeah im same as andy2pac, i have buckets but with the standard seatbelt, just simply mount pretensioners onto the side of the new bracket.