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Join Date: Nov 2004
Location: Greater Metropolitan Nimrod, Oregun
Posts: 10,040
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seat bolt torque
Anyone know if there is a specific torque spec. for the small (M5?) cap screws that hold the seats to the rails for a 1973 car?
I'm not finding it here, or in the Tech Spec Book. I don't have the factory manual. A 10.9 bolt should be able to take 10 ft-lbs in general...
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"A man with his priorities so far out of whack doesn't deserve such a fine automobile." - Ferris Bueller's Day Off |
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09-04-2006, 04:30 PM
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Location: Cornwall-on-Hudson, New York, USA
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It's almost irrelevant. You could basically secure the rails to the floorpan with Ty-Raps--those little cap screws aren't much better--because all you care about is the seatbelts.
Stephan
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Stephan Wilkinson '83 911SC Gold-Plated Porsche '04 replacement Boxster |
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09-04-2006, 05:47 PM
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Absolutely Not - part of the seatbelts attaches to the seat rail - "those little cap screws" hold one of the seat belt anchors.
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"A man with his priorities so far out of whack doesn't deserve such a fine automobile." - Ferris Bueller's Day Off |
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09-04-2006, 08:28 PM
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This may turn out to be a re-post of a post I thought didn't make it. Anyway...
I hadn't realized that early cars were that different. Must be that Porsche thought better of it, since that's a strange place to mount seatbelts. In most cars of any kind, belts are anchored to something solider than the seats themselves, and in later Porsches, they're mounted to the floorpan. But still...if your belts mount to the seat rails and the seat itself fastens to the sliding tracks, wouldn't that still make it irrelevant how firmly the seat is anchored to the tracks? It would seem to me that the only really important fasteners are the ones holding the rails to the floor. Actually, come to think of it, the seat mounting itself would matter in an impact from the rear. But in all of the bad rear-enders I've seen (I'm an EMS volunteer two days a week) the seats fail anyway--either the backrest or the whole seat. I wonder if there's even a crashworthiness standard for rear impacts... Stephan
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Stephan Wilkinson '83 911SC Gold-Plated Porsche '04 replacement Boxster Last edited by Formerly Steve Wilkinson; 09-05-2006 at 06:37 AM.. |
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09-05-2006, 05:10 AM
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Join Date: Nov 2004
Location: Greater Metropolitan Nimrod, Oregun
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I do think NHTSA has a std. like that now.
Maybe I should change the way the belts mount - guess I'd have to pay a welder to reinforce the tub in a few spots then weld nuts on or something. The outer mounts are brackets that are held on by the same cap screws that hold the rails down to the welded in "rail monts" or whatever they are called. The exact same cap screws also mount the seat to the rails - so I assume a single torque value for both. Bentley shows a torque of 17 ft-lbs., but that is for an M8 cap screw - IIRC, mine are M5 - I'll have to check when I get home - if anybody is interested I can take a pic of the mounting also.
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"A man with his priorities so far out of whack doesn't deserve such a fine automobile." - Ferris Bueller's Day Off |
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09-05-2006, 11:15 AM
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