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#11
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From one 4.6 owner to another, troubleshoot the simple/easy fixes first, especially if safety related. Always torque the wheel lugs, not fun if a wheel falls off. 3/8 and 1/2 in torque wrenches are a must have for DIYer.
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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior Dallas |
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#12
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You definitely need to torque your lugs. At the least I use torque sticks to get them close before a follow up. A primary point is to.get them tight enough to not loosen up. Even "snug" they will apply on the order of 40-50,000# of force but if as loose as you describe, for sure the hub to wheel surface could have moved a couple 1/1000" each rev and cause a tap. I heard a distinct double tap which could be two different lugs binding up and releasing.
Good share though. Somebody in the future will see this thread and check their lugs.
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2011 E70 • N55 (me) 2012 E70 • N63 (wife) |
#13
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Well it was on the wheel end! Good catch. Luckily you didn't have any lug-bolts fall off during highspeed transit!
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2003 BMW X5 3.0i -- MT5, 3.64s final gears, H&R lowering springs, K-Mac bushing kit 2007 BMW X3 3.0Si -- MT6 |
#14
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Yeah I should definitely have a torque wrench in my shopping list, already have a 1/4" one but not much of a use for car related stuff. Still wondering how I would have left the lugs so loose while even after the rechecking they were okay but I guess they were still a bit off which allowed them to loosen even more.
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09/2003 X5 3.0i 02/2003 X5 4.6is (non-runner) |
#15
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Torque wrench mandatory/big hoard of tools & parts optional
I've carried a "cheap" torque wrench in all my vehicles (my personal vehicles, not the ones the wife uses exclusively...she wouldn't be able to set the torque required) since the 1970's, after I had problems with lug nuts being too tight, or too loose, after using "4-way"s or a "jack-handle wheel lug wrench" (included, along with the jack, in most cars' equipment).
Several times I had found that after I had changed out a flat tire using those tools to loosen/tighten the lug nuts (or the bolts on my VW's), and then went to re-tighten them about 100 miles later (what my Grandfather taught me to do), they were either too tight or slightly loose, depending on my degree of aggravation when changing the flat tire. I just never was able to judge how much force to use. At first, I carried a beam-style 1/2" torque wrench, but switched to cheap click-style wrenches when they started selling for under $50 USD. Since then, I've had no problems with wheels installed or tightened by myself. However, I have had recent (and several times prior) bad experiences with lug nuts/bolts that were too tight to remove easily, that had been installed by tire shops presumably with powerful air impacts. I usually found my truck wheels had been overtightened way past the 140 ft-lbs required, so I added a long-handle 1/2" breaker bar (with an extension tube for added power) to my truck equipment. The recent https://xoutpost.com/bmw-sav-forums/...bolts-e53.html problem I had with my first flat on the X5 prompted me to add a breaker bar and extension tube to the growing assortment of tools I have in the trunk (including std. BMW tire-changing equipt.), all in various toolbags and boxes:
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01 BMW X5 E53,3.0i-5L40E, 7/13/01 topas-blau,Leder-grau,"resto-project car" Here: 14 Lexus ES350,3.5L-U660E 09 HHR Panel,2.2L-4T45E 04 Chevy 2500HD,6.0L-4L80E 98 GMC Sierra 1500,5.7L-4L60E Gone: 66 Chevelle Malibu 2dr ht.,327>441c.i.-TH350>PGlide/transbrake 08 Cobalt Coupe,2.2L-4T45E 69 & 75 C10s,350c.i.-TH350 86 S10,2.8L-700R4 73 Volvo 142,2.0L-MT4 72 & 73 VW SuperBeetles,1.6l-MT4 64 VW,1.2l-MT4 67 Dodge Monaco 500 2dr ht.,383c.i.-A727 56 Chevy 210 4dr,265c.i.-PGlide |
#16
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Quote:
Many years ago I had a reputable shop do some front suspension work and a valley pan in my X5 and they neglected to torque the subframe stiffener bolts. This will get your attention on the road.
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Current Original owner 2002 E53 X5 4.4i to 4.6i swap 1993 Mopar 318 Jeep Grand Cherokee - original owner 2015 V6 Jeep Grand Cherokee - the nice car for my wife Former 1972 Audi Fox 1986 Saab 900S 1996 BMW Z3 1998 BMW E36 M3 Sedan 2004 BMW E46 M3 2006 Audi A3 Quatro |
#17
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Did you check to see if the loose wheel deformed the lug holes in the wheel?
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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior Dallas |
#18
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Quote:
Actually I didn’t, will do tomorrow, thanks for the heads up!
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09/2003 X5 3.0i 02/2003 X5 4.6is (non-runner) |
#19
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Quote:
140ft.lbs is VERY tight- at least on our cars! (Maybe you are referencing a larger vehicle spec.)
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Wayne 2005 BMW X5 3.0d (b 02/05) 2001 BMW F650GS Dakar (b 06/01) |
#20
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unclear reference to a larger truck
Quote:
tires I've had installed at Discount Tire and NTB. That's when I started carrying the breaker bar. Previously, 1/2" diameter, 5-lug and even 6-lug Chevy trucks only required 90 ft-lbs (actually 65-90, prior to the mid-70's), and when they were overtightened, I could still get them loose. But, when the lug bolts/nuts went to 9/16" on the eight-lug wheels, it seems all the tire techs decided to use their most powerful impacts to secure them. I never expected the same on the X5.
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01 BMW X5 E53,3.0i-5L40E, 7/13/01 topas-blau,Leder-grau,"resto-project car" Here: 14 Lexus ES350,3.5L-U660E 09 HHR Panel,2.2L-4T45E 04 Chevy 2500HD,6.0L-4L80E 98 GMC Sierra 1500,5.7L-4L60E Gone: 66 Chevelle Malibu 2dr ht.,327>441c.i.-TH350>PGlide/transbrake 08 Cobalt Coupe,2.2L-4T45E 69 & 75 C10s,350c.i.-TH350 86 S10,2.8L-700R4 73 Volvo 142,2.0L-MT4 72 & 73 VW SuperBeetles,1.6l-MT4 64 VW,1.2l-MT4 67 Dodge Monaco 500 2dr ht.,383c.i.-A727 56 Chevy 210 4dr,265c.i.-PGlide |
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