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Seat Belt Bolt Torque?
I'm replacing my worn out drivers side seat belt. I can't find anything other than a generic torque spec for the bolt torque. Does anyone know?
They are 17mm bolts so I guess they fall in the M10 catagory. They are Class 8.8. My Bentley Manual chart says 47 ft-lbs. Should I use that?
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Matt. 83 911SC 85.5 944 NA - Sold |
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03-06-2011, 07:13 AM
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I would go with what's in the Bentley. It's not like it's part of the engine, were the torque value can be critical.
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Kipp 1987 Black 911 3.2 Carrera Coupe 1999 Green Mazda MX5 (SOLD) |
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03-06-2011, 07:28 AM
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Join Date: Aug 2002
Location: Galivants Ferry, SC
Posts: 10,550
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FWIW.... ALL seatbelt bolts for ALL cars of ALL countries... are US spec 7/16"-20 fine pitch thread, and not metric.
Grade 5 ( US basis) should be OK.....which closely matches Euro "Stength class " 8.8 Don't use similar looking 11 mm or such as it will turn-in 4 turns and give you a terrible cross-thread. Porsche's 7/16-20's may have 17mm heads...or close US equivalent to that. Get the proper Porsche bolt,as opposed to a standard hardware bolt, as it is a "shouldered" design, that allows the belt metal mount to rotate and not bind as the bolt it tightened to the chassis.
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Wil Ferch 85 Carrera ( gone, but not forgotten ) Last edited by Wil Ferch; 03-07-2011 at 08:34 AM.. |
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03-06-2011, 07:28 AM
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1983 Porsche 911SC
1987 Porsche 911 Carrera
