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Registered
Join Date: Aug 2001
Location: Spartanburg,SC,USA
Posts: 244
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Torque on bannana arm Poly-graphite Bushings ?
I just replaced the origional rubber bushing and metal washers with new poly-graphite bushings. The book says torque is 87 ftlbs got the bolt. Do I still use this value without the metal washers? They are discarded when the new poly's are installed. Thanks
------------------ Duane '73 914, '76 912E, & '76 VW BUS (ALL 2.0L) |
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09-20-2001, 06:53 AM
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Join Date: Mar 1999
Location: Cornwall-on-Hudson, New York, USA
Posts: 4,499
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Don't know if you care, at this point, but I installed the same bushings and then got enough advice from highly knowledgeable Porsche competition people who said that the noncompliant bushings are a bad mistake in that location, that I took them off before ever running the car with them and went back to rubber. Apaprently, those banana arms need to work in "three dimensions," as it were, and the noncompliant bushings allow only linear movement and totally screw up the rear suspension dynamics.
STephan |
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09-20-2001, 07:53 AM
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Join Date: Aug 2000
Location: Bellingham, WA, USA
Posts: 400
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Sorry to barge in on your post Duane but my arms are out right now and I'm struggling about the bushings. I understand the poly are noisy, are the original rubber available? I've seen neatrix (sp?) for the swing arm but not the bananna arm.
------------------ Rob Fix '78 SC Targa |
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09-20-2001, 08:19 AM
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Join Date: May 2000
Location: Los Alamos, NM, USA
Posts: 6,044
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Porsche OEM rubber bushings are available for the "banana arm"; PN 901.331.059.00. Four are required; two per side.
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09-20-2001, 09:42 AM
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Registered
Join Date: Aug 2001
Location: Spartanburg,SC,USA
Posts: 244
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Well guys, there in and I do not race so Im goung to try them. Check with me in a year and I'll let you know how they worked. I'll just use the 87 ft lbs and hope for the best.
PS. I used the rubber netrix bushings and they went in great. Also I never removed the torsion bars marked the angles with a black sharpie and re-installed the arms and wala right height the first try! Pelican has been a great info source! ------------------ Duane '73 914, '76 912E, & '76 VW BUS (ALL 2.0L) |
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09-20-2001, 10:15 AM
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Been there,done that. Save yourself alot of time and aggravation and stick with the OEM bushings. Cost is around $90 the complete set.
Kevin Kipta 72 911T/E |
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09-20-2001, 04:49 PM
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I don't think you can healthily get 87 ft lbs of torque on those bushings. I asked a sampling of 911 racers about this deal, and they said to just tighten them up so there wasn't any slop. I'm going back to the stock bushings next chance I get, the whole deal of not having a torque on a important component just freaks me out, even though the nut is a nylock type.
Dave A [ The book says torque is 87 ftlbs got the bolt. Do I still use this value without the metal washers? QUOTE] |
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09-23-2001, 05:54 PM
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