1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202 
Tight means trouble
Page 27
If you've noticed an error in this article please click here to report it so we can fix it.
HAVING just read the 'Letter of the week' (CM 17 March)! have to comment on the seemingly naive narrative by Ian Chisolrn (SOE Head of Technical Services). "There are many reasons for the loss of clamping force... anything that allows the stud to shorten."
Why do wheels fall off? It's simple: the studs become work-hardened with use and,in particular, by over-fightening.They lose their elasticity and eventually stretch like chewing gum when you pull it too far. How often does a fitter tighten the wheel nuts with an air gun and then go round with a torque wrench?
I do not allow the nuts to be put back on with an air gun. If the threads are rusty and the nuts won't spin on by hand! put oil or grease on the studs and work them until they do.
When the wheel has been changed several times, or if a stud breaks,! change ALL the studs on that wheel and maybe on the others too they're really quite cheap you know.
John (owner-driver since '87 and not one wheel lost) by e-mail