Swampy Posted October 30, 2018 Share Posted October 30, 2018 Hey guys wondering if anyone has swapped from the 3 point belt to a lap belt instead? It seems like it'll be easier to install as well. Also on a side note has anyone fixed a seat belt retractor? Mine won't lock if you yank on the seat bolt. It's supposed to lock right? Link to comment Share on other sites More sharing options...
Eagle Posted October 30, 2018 Share Posted October 30, 2018 Hey guys wondering if anyone has swapped from the 3 point belt to a lap belt instead? It seems like it'll be easier to install as well. Then what are you going to use for a shoulder belt? Also on a side note has anyone fixed a seat belt retractor? Mine won't lock if you yank on the seat bolt. It's supposed to lock right? I assume you mean yank on the seat "belt." No, it's not locked if you yank on it -- it locks under crash conditions. Link to comment Share on other sites More sharing options...
Dzimm Posted October 30, 2018 Share Posted October 30, 2018 I'm pretty sure it's illegal to install a lap belt if the vehicle came with a shoulder belt from the factory, at least in Iowa. Link to comment Share on other sites More sharing options...
Minuit Posted October 30, 2018 Share Posted October 30, 2018 Now I'm normally a "just answer the damn question" type of guy, but I don't have any idea why you'd ever want to do this. Is it because you can't get the belt to "lock" by pulling it? Link to comment Share on other sites More sharing options...
HOrnbrod Posted October 30, 2018 Share Posted October 30, 2018 3 hours ago, Eagle said: I assume you mean yank on the seat "belt." No, it's not locked if you yank on it -- it locks under crash conditions. Mine do. Both sides. Link to comment Share on other sites More sharing options...
SVPete Posted October 31, 2018 Share Posted October 31, 2018 I agree with Minuit. Not sure why you would want to install a lap belt versus a three-point belt. As far as fixing goes....If it isn't working right, get a new one. Your life is worth a new belt. Link to comment Share on other sites More sharing options...
Swampy Posted October 31, 2018 Author Share Posted October 31, 2018 2 hours ago, SVPete said: I agree with Minuit. Not sure why you would want to install a lap belt versus a three-point belt. As far as fixing goes....If it isn't working right, get a new one. Your life is worth a new belt. that's what I am going to do. I found some universal 3 points that should fit in an xj so I'm going to order two Link to comment Share on other sites More sharing options...
ParadiseMJ Posted October 31, 2018 Share Posted October 31, 2018 On my XJ and MJ the belt locks when I pull on it IF the brake is pressed and wheel is slightly cocked. Try driving it at about 15-20 mph, hit your brakes and yank on the belt. Link to comment Share on other sites More sharing options...
AZJeff Posted November 2, 2018 Share Posted November 2, 2018 There are TWO types of locking systems used in "intertia type" seat belts, and I think people are confused by the difference. I will explain and call them "Type One" and "Type Two" 1. TYPE ONE seat belt retractors are designed to lock when the vehicle sees a sudden acceleration or deceleration. It uses a small weight inside the retractor that moves off center when it encounters such an acceleration/deceleration, be it front to back or side to side. If such an acceleration/deceleration is not seen, the retractor will allow belt extension/retraction no matter how fast one pulls on the belt. 2. TYPE TWO retractors lock when the belt is pulled rapidly from the spool on the retractor. These types of retractors will function independent of vehicle acceleration/deceleration. I "think" (but cannot be sure) that the Type Two retractors are considered obsolete, as they do not provide belt locking protection in anything but a forward collision deceleration. Recent production vehicles are all equipped with Type One retractors. I don't know when AMC/Chrysler started using Type One retractors on the XJ/MJ family. Link to comment Share on other sites More sharing options...
ParadiseMJ Posted November 2, 2018 Share Posted November 2, 2018 On 10/31/2018 at 3:39 PM, ParadiseMJ said: On my XJ and MJ the belt locks when I pull on it IF the brake is pressed and wheel is slightly cocked. Try driving it at about 15-20 mph, hit your brakes and yank on the belt. I have to eat crow on my reply. I tried this yesterday. My 1990 XJ does lock on braking or a very rough road. My 88 MJ does not, at least not on a regular basis. I've tried to put my belt on while braking and it has locked up until I'm back driving cruising again, but not always. Then again, my newer vehicles (post 2005) all lock up with the brake even lightly applied Link to comment Share on other sites More sharing options...
Swampy Posted November 3, 2018 Author Share Posted November 3, 2018 17 hours ago, AZJeff said: There are TWO types of locking systems used in "intertia type" seat belts, and I think people are confused by the difference. I will explain and call them "Type One" and "Type Two" 1. TYPE ONE seat belt retractors are designed to lock when the vehicle sees a sudden acceleration or deceleration. It uses a small weight inside the retractor that moves off center when it encounters such an acceleration/deceleration, be it front to back or side to side. If such an acceleration/deceleration is not seen, the retractor will allow belt extension/retraction no matter how fast one pulls on the belt. 2. TYPE TWO retractors lock when the belt is pulled rapidly from the spool on the retractor. These types of retractors will function independent of vehicle acceleration/deceleration. I "think" (but cannot be sure) that the Type Two retractors are considered obsolete, as they do not provide belt locking protection in anything but a forward collision deceleration. Recent production vehicles are all equipped with Type One retractors. I don't know when AMC/Chrysler started using Type One retractors on the XJ/MJ family. good info, will look into the retractor types for the xj's Link to comment Share on other sites More sharing options...
Minuit Posted November 9, 2018 Share Posted November 9, 2018 Going back to this: I went and tested the belts in my '91 (read: stomped on the brakes really hard on a closed course) and they are definitely the "Type one" that AZJeff talked about. They won't lock no matter how hard I yank on them but lock immediately and consistently under even slightly hard braking. Obviously not a bad idea to test your own belts, but you shouldn't be concerned right away if they won't lock simply by pulling them. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now