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seatbelt conversion


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#21 skidmark117

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Posted 01 October 2009 - 09:54 AM

Hey lads,
I did this conversion about 2 years ago to my 1970 240z.  I thought the thread that gave me the help was actually on this site, but maybe I've confused it with Zcar.com

The pics posted below are not of my car, but are the original thread pics I saved as my reference bible when doing the job.  Not that the shot of the reel has the belt twisted.  This is either a 360° twist by accident that could have been removed before the pic was taken, or the bloke has mistakenly installed the RHS on the LHS (I have vague memories that there is a Left and Right, due to the way the reel rolls across the wearer's body.  Can't recall exactly ???)

Given a bit of time I'm sure I could source the part numbers etc. from the supplier, Hemco industries in Ballarat Victoria.

The installation was pretty straight forward, with the pillar and floor mount points from the original system re-used, and a hole drilled into the wheel arch for the inertial reel.  The kit comes with a nice big load spreading plate that plants across the arch metal, bolted outside the car.  The only 'hard' part is to ensure you drill the wheel arch mount hole far enough to the rear of the car that the belt doesn't rub against the plastic reel cover, which it does when released and gravity lets it drop back against the slot.  My driver's unit is probably about 10mm too far forwards and there is already signs of rubbing.  Easy fix would be to widen the slot.

I recall I debated a bit over whether to buy 90° or 45° stalks.  Can't recall which I did (I'll find it...), but do know I needed to do a bit of light bending of the stalk to get it to sit where I wanted it - on my hip, not in my kidneys.

Another thing to consider is where do you put your belt when you take it off?  The inertia reel wants to drag it into the No-Man's Land next to the seat, as the pillar hang strap drops down and lets it happen.  I have plans to mount some sort of hook on the side of the seat (MX-5 type thing?  Dunno) to guide and hold the belt.  For now I loop it over the head of the chair, which is great for me because I know it's there, but offers me much entertainment watching passengers contort their arms to fish around for it.

Now, where were those part numbers...

[edit on Friday 2nd Oct -

As per Lynton's post below, my reel bought from Hemco came with a molded plastic cover, looks nice and neat.

---------------------------------------------------------------------------------
Oh Joy, I found the original thread and pics, and they were on this site ;D.  The info, part numbers and pics below were all originally posted in 2005 by WarrenZ.

http://www.viczcar.c...php?topic=100.0

What's got me confused is that a 'normal' search for Hemco didn't find it, but if I used advanced search parameter 'older posts first', there it was ???  It seems there's a 10 post limit...  Can someone PM me with an answer please?  I thought I knew teknologee...]

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#22 Lynton

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Posted 01 October 2009 - 03:24 PM

As I recall on my 260Z 1975 2 seater coupe, from when I purchased it new they were all fitted with that type of inertia reel seat belt but in that picture there is a horizontal guide pin at the top of the belt and your picture shows the fabric belt leading from below instead of from the top? As I recall they also used to rattle a bit mounted on the strut?
In the later 260z coupes they provided a plastic cover so you could not see the belt winding mechanism I think that was about 1977/78 but there would be few about today I think? Lynton 8)

#23 chris240

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Posted 02 October 2009 - 07:54 AM

Good stuff...I needed this thread !
Ahh yes the trigger mechanism, anyone ever gotten trapped in a late model Alfa ?? when our alfa detected a slope of 0.0001 degree it would friggin lock on me !!

#24 stevo_gj

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Posted 02 October 2009 - 02:04 PM

As I recall on my 260Z 1975 2 seater coupe, from when I purchased it new they were all fitted with that type of inertia reel seat belt but in that picture there is a horizontal guide pin at the top of the belt and your picture shows the fabric belt leading from below instead of from the top? As I recall they also used to rattle a bit mounted on the strut?
In the later 260z coupes they provided a plastic cover so you could not see the belt winding mechanism I think that was about 1977/78 but there would be few about today I think? Lynton 8)


My 1975 2 seater has the bracket shown above on top of the strut tower, and I can confirm it rattles.

#25 zzzzed

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Posted 02 October 2009 - 02:54 PM

hmmm.. Mine dosn't seem to rattle thankfully  ;)

#26 waxhead

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Posted 03 October 2009 - 03:52 AM

Good stuff...I needed this thread !
Ahh yes the trigger mechanism, anyone ever gotten trapped in a late model Alfa ?? when our alfa detected a slope of 0.0001 degree it would friggin lock on me !!

What you said makes me think of this song





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