 "Steering Bearing" torque setting, securing the bearing boot and bearing |
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| captjm |
 Dec 27 2024, 10:06 PM
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#1
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Newbie  Group: Members Posts: 16 Joined: 28-January 07 From: Temecula, CA Member No.: 7,485  |
There is a two bolt bracket that secures the steering gear shaft "steering bearing and rubber boot". How tight should these bolts be? The bolts are M8 x1.25 x15 mm socket head. I did not find a torque setting anywhere and securing them too tight might just damage the rubber? Any thoughts?
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| bdstone914 |
Dec 28 2024, 04:12 AM
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#2
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bdstone914 Group: Members Posts: 5,023 Joined: 8-November 03 From: Riverside CA Member No.: 1,319 |
I don't know of any rubber boot like you describe other than the one under the horn pad. 8m bolts typically need 20-30 ft lb torque.
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| bdstone914 |
Dec 28 2024, 04:12 AM
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#3
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bdstone914 Group: Members Posts: 5,023 Joined: 8-November 03 From: Riverside CA Member No.: 1,319 |
oops
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| Montreal914 |
Dec 28 2024, 05:38 AM
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#4
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Senior Member Group: Members Posts: 1,854 Joined: 8-August 10 From: Claremont, CA Member No.: 12,023 Region Association: Southern California 
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Maybe he is referring to the rubber coupling between the steering intermediate shaft and rack and pinion input shaft? (IMG:style_emoticons/default/confused24.gif)
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| bdstone914 |
Dec 28 2024, 08:36 AM
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#5
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bdstone914 Group: Members Posts: 5,023 Joined: 8-November 03 From: Riverside CA Member No.: 1,319 |
QUOTE(Montreal914 @ Dec 28 2024, 05:38 AM)  Maybe he is referring to the rubber coupling between the steering intermediate shaft and rack and pinion input shaft? (IMG:style_emoticons/default/confused24.gif) maybe but those are not socket head screws. it so those bolts have metal tabs as locks and the steel spacers in the rubber puck control the compression of the rubber. . .......so maybe he left out the spacers? I think we need a new emoji WTFAYTA? |
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| SirAndy |
Dec 28 2024, 11:48 AM
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#6
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Resident German Group: Admin Posts: 42,244 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
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| captjm |
Dec 28 2024, 06:20 PM
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#7
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Newbie Group: Members Posts: 16 Joined: 28-January 07 From: Temecula, CA Member No.: 7,485 |
QUOTE(Montreal914 @ Dec 28 2024, 03:38 AM) Maybe he is referring to the rubber coupling between the steering intermediate shaft and rack and pinion input shaft? (IMG:style_emoticons/default/confused24.gif) There is a bearing underneath this bracket and rubber boot. There must be some guidance on how tight somewhere?  |
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| Superhawk996 |
Dec 28 2024, 09:52 PM
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#8
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914 Guru Group: Members Posts: 7,199 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch
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Good n’ tight is standard German torque when in doubt. (IMG:style_emoticons/default/av-943.gif)
The metal clamp goes metal to metal with the chassis below it. It is designed to put minimal compression on the needle bearing / rubber that it is holding. Standard MAXIMUM torque for an M8 grade 8 fastener is around 30 Nm (22 lb-ft). 70% of this value is about right for this situation. Let’s call it 15 lb-ft or there abouts. Otherwise look up the specific torque for Allen Head fastener (usually grade 10.9 or 12.9). That value is going to be much higher than what is actually needed here. |
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| captjm |
Dec 29 2024, 08:25 PM
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#9
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Newbie Group: Members Posts: 16 Joined: 28-January 07 From: Temecula, CA Member No.: 7,485 |
QUOTE(Superhawk996 @ Dec 28 2024, 07:52 PM) Good n’ tight is standard German torque when in doubt. (IMG:style_emoticons/default/av-943.gif) The metal clamp goes metal to metal with the chassis below it. It is designed to put minimal compression on the needle bearing / rubber that it is holding. Standard MAXIMUM torque for an M8 grade 8 fastener is around 30 Nm (22 lb-ft). 70% of this value is about right for this situation. Let’s call it 15 lb-ft or there abouts. Otherwise look up the specific torque for Allen Head fastener (usually grade 10.9 or 12.9). That value is going to be much higher than what is actually needed here. Thank you and to all that responded ! I have a plan now and can finish this compartment. |
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| technicalninja |
Dec 29 2024, 09:04 PM
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#10
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Advanced Member Group: Members Posts: 2,531 Joined: 31-January 23 From: Granbury Texas Member No.: 27,135 Region Association: Southwest Region
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I'd clean the threads up and use a small dot of blue Loctite on those.
I'd be 15 as well unless I found other directives. Your under-tank area is NICE! (IMG:style_emoticons/default/smilie_pokal.gif) |
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