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inertia seat belts

Posted: Sun May 08, 2011 6:40 pm
by Budgie
ok i know this has been covered on this site a lot but i,ve gone through the archives and can,t seem to find enough detail for me to make an informed decsion so here goes; i currently have static seat belts fitted to the front of my 1969 tourer but would like to fit inertia ones instead so are they simple to just "swap over" or is there a bit of fettling to do ,i,m hopeing its just a case of unbolting the statics and bolting the inertia,s or is that wishfull thinking :wink:

Re: inertia seat belts

Posted: Sun May 08, 2011 8:26 pm
by Fingolfin
If your static belts are three-point belts, then I believe it should be a straight swap. It will already have the anchor points (though you may want to check and make sure). However I have yet to do this job.
There's nothing technically WRONG with static belts though.........it's just they, having less 'give', have an improved chance of harming you in a collision.

Re: inertia seat belts

Posted: Sun May 08, 2011 8:53 pm
by Budgie
thanks for that it,s just that i get grief every time my daughters get in the front of the car and then my mother so each time i have to adjust it accordingly. So as long as the current anchor points are ok it,s just a simple case of unbolt and rebolt excelent thanks :D

Re: inertia seat belts

Posted: Sun May 08, 2011 10:09 pm
by Budgie
Any other thoughts/comments before i commit myself to buying and fitting inertia,s ? :D

Re: inertia seat belts

Posted: Mon May 09, 2011 6:58 am
by Declan_Burns
Be careful that you don't lose the captive plates.
They tend to vanish,
http://www.mmoc.org.uk/viewtopic.php?f= ... an#p241209
Regards
Declan

Re: inertia seat belts

Posted: Mon May 09, 2011 6:55 pm
by Budgie
Just as i was about to ask for pics fair play declan,you came up trumps thanks very helpfull but i can,t get my head around the "plates" and being carefull not to loose them when fitting sorry to sound inept,as stated i currently have static belts fitted to the front,so,is it as simple as unbolt statics,bolt on inertia,s :roll:

Re: inertia seat belts

Posted: Mon May 09, 2011 11:41 pm
by Fingolfin
There's an extra step in between. The captive plates -- the ones that hold the seatbelts on, behind the bit of body that the belt is attached to -- are loose, and can fall and be very difficult to find thereafter. Just make sure you keep hold of them while the seatbelts are off.

Re: inertia seat belts

Posted: Tue May 10, 2011 8:38 am
by Neil MG
There is a captive fastener inside the sill that may no longer be captive when you remove the fastener! When I changed belts on a traveller recently there was a spot of welding to do!

Re: inertia seat belts

Posted: Tue May 10, 2011 5:27 pm
by rayofleamington
also worth to note that the factory mounting points of the centre belt strap (the bit by the handbrake) might not suit your inertia belts.
If so, you'll need to re-drill the floor and prefferably add a re-enforcing plate (aka very big washer or rectangular plate with a hole in it) when you bolt the centre pieces in place.

Re: inertia seat belts

Posted: Tue May 10, 2011 9:32 pm
by Budgie
so ,are these illusive" capitive plates" accessible/visable when i remove the rear side panel? :-?

Re: inertia seat belts

Posted: Wed May 11, 2011 6:47 am
by Declan_Burns
rayofleamington wrote:also worth to note that the factory mounting points of the centre belt strap (the bit by the handbrake) might not suit your inertia belts.
If so, you'll need to re-drill the floor and prefferably add a re-enforcing plate (aka very big washer or rectangular plate with a hole in it) when you bolt the centre pieces in place.
Budgie,
As Ray has mentioned you may have to fit the part that bolts to the tunnel further back. Mine had no factory mounting points at all. The securicon belts are not supplied with the bracket which goes under the tunnel. It looks like this:
http://morrisminorspares.co.uk/shop/pro ... 9eac6a138c
I used the same bracket for the mount behind the reel. The small hole in the bracket is so you can fit a piece of string for retrieval in case it vanishes into "Moggyland".

Heres a photo of where I fitted them[frame]Image[/frame]
When you remove the side panel stuff in some rags at the bottom before you remove the upper belt bolt. (Have a magnet cable tied to a flexible rod handy-just in case).The top bracket should be captive on your car but just loosen the bolt first before you remove it. You can use a mirror to see the fixing point, jaggle the bolt and if there is a bracket which is not captive, use a G-clamp or your fingers to hold it in place while you fit the new belt. Similar procedure applies to the bottom. Clean out the cavity (thin walled convoluted 3/4"pipe on a vacuum cleaner) and waxoil while you are at it.
Regards
Declan

Re: inertia seat belts

Posted: Wed May 11, 2011 8:21 pm
by Budgie
Thanks declan i "think" i,ve got the jist of it now but just out of curiosity would my minor have come with the static belts fitted as standard it,s a 1969 model :D

Re: inertia seat belts

Posted: Wed May 11, 2011 9:28 pm
by Fingolfin
Should've! I don't know when they started fitting them -- probably either at the major '61 changeover or '65 -- but I know they were fitting them for some time before the end of production, which was '71. Though Dee-Lux models could've had them fitted for most of production, at least from '55 I would say; it's in the BMC workshop manual, which tends to focus on MMs.

Re: inertia seat belts

Posted: Wed May 11, 2011 9:46 pm
by phurn
mines a 63 deluxe and didnt have any as standard! have some ford belts fitted now! theyre a lil shortr than id like, but they work!

Re: inertia seat belts

Posted: Wed May 11, 2011 9:48 pm
by Fingolfin
Hmm. Well, as usual, take what I say with a few grains of salt. :lol: I was under the impression deluxe models were supposed to -- but perhaps seatbelts were dealer-fitted?