Porsche 924 - now with added Rear Seat Belts!

Dades

So, there's a lot of 924 owners around these days, and adding rear belts seems to be a common query. I've googled it a lot myself with a view to fitting a belt I bought over 3 years ago, but never found full instructions or some pics that explain where to bolt on your bits.

Anyway, our family had reached a point (in age) where, if I had a rear belt, I could carry both my kids on short trips. Mrs Dades doesn't drive the 924 so she needs the familywagon if she's off without us.

Years ago I bought a static 3-pointer belt on eBay that I'd read would fit the boltholes on the 924, and dug it out. I'd read fitting a retractable belt involved welding mounting points and that was overkill for what I needed.

Bear in mind, my car is an '83 - so earlier cars may not have all three mountings mine had. But it's not difficult to find out anyway.

Seat Belt Box


Obviously, the worst bit was going to be puncturing my lovely rear seats, but I kept telling myself I was adding value!



Following what instructions I could find online, I searched for - and found - the two lower mounting points. To the find the one of the left, I just had to peel back enough carpet that I would be able to lift the rear seats and find the bolthole in the transmission tunnel (with a torch). Using a measuring tape and some cuss words, I punctured the seat over where the bolt hole was and stuck something long in so I wouldn't lose it again.

To find the bolt hole on the right just involved lifting the rear seat where it meets the carpet and pulling the carpet up somewhat.



With the bolt holes found, I used the longest bolt in the kit to fix in the belt socket to the transmission tunnel bolthole, and one of the two short ones to secure the other lower bit. This involved a lot of sweating and swearing as getting a bolt in with seat/carpet inbetween it and it's destination can be tricky. But there was only one winner.



The top part of the belt was just secured to a bolt hole hiding behind a big plastic screw on the C (I think) pillar. If it's there - you couldn't miss it.



In with the Mothercare booster seat, tightened the belt, and received the nod of approval from Mrs Dades and minion #1. My seat will only be used for short trips around the 'burbs... 5 mins to swimming or the shops, but I've every confidence it safely secures a child.



Hope this helps someone.

macplaxton

Good guide there, I'm sure there are plenty of folk out there who wish to do the same and seeing someone else do it will be helpful.

As far as mountings go, it was certainly mandatory in the UK for all cars to have rear mounts built-in from a date in 1981. Other cars may have had them earlier, depending on the manufacturer or intended market.

superfly35

Nice Work Conor.
Did you do some stitches on the seat based to avoid the cut to expand ?
Or the bolt is tied enough to block everything.
I need to convert my car eventually. ;-) nice guide

MercMad

Looks a good job. Were there any spacers involved so the bolts could lock down metal to metal, without carpet compromising the torque ?

BTW I was pleasantly surprised to find my early '68 Mercedes had threaded bolt holes in the rear. Fitting two inertia reel and a centre lap belt was literally a ten minute job.

Dades

superfly35 wrote: »

Nice Work Conor.
Did you do some stitches on the seat based to avoid the cut to expand ?
Or the bolt is tied enough to block everything.

Never thought to do stiches... though I don't think the hole is likely to expand. For a start the use it will get is fairly minimal.

MercMad wrote: »

Looks a good job. Were there any spacers involved so the bolts could lock down metal to metal, without carpet compromising the torque ?

Yeah - the kit came complete with bolts and spacers. Now I know what they were for.

Kenny Logins

What was the part number of the seatbelt kit? One of these?

http://www.securon.co.uk/seatbelts_layouts.htm

Dades

Kenny Logins wrote: »

What was the part number of the seatbelt kit? One of these?

http://www.securon.co.uk/seatbelts_layouts.htm

That link doesn't work for me...

Does the pic of the box above show for you (first pic in thread)? Oddly I can't see it on my phone but I can on my laptop.

Pretty sure it's this belt - the 200.

Kenny Logins

Dades wrote: »

That link doesn't work for me...

Does the pic of the box above show for you (first pic in thread)? Oddly I can't see it on my phone but I can on my laptop.

Pretty sure it's this belt - the 200.

Your pic doesn't work for me.

macplaxton

Kenny Logins wrote: »

What was the part number of the seatbelt kit? One of these?

http://www.securon.co.uk/seatbelts_layouts.htm

I think you want to look at this link:
http://www.securon.co.uk/applications/seat_belts_applications.htm

Dades

Kenny Logins wrote: »

Your pic doesn't work for me.

How about this one?

Kenny Logins

Yep. I can see it now.

Agricola

Did you have a moment before you started when you thought to yourself....
"Hmmm, risk my kids safety or puncture my lovely leather seats..hmmmm"

Good job btw.

Dades

I thought of nothing else!

MercMad

It would be important to use the spacers correctly, and if I ever have to puncture a leather or vinyl seat I use a patch from a puncture repair kit in the hope it will offer some resistance to the hole splitting.