Re: [Healeys] Brake backing plate bolts

[john harper via Healeys <healeys@autox.team.net>]

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Michael

This reminds me of a major problem that I had with Nyloc nuts. When I was
working on a BN1 rear hub a well-known supplier offered me Nylocs rather
than the standard all-metal wheel nuts.

I fitted the nuts and torqued up to the usual figure of about 65 pounds-fee=
t.
After some miles of running the hub extension became loose and started to
work through the wheel studs. I managed to stop with only two studs
remaining. I was lucky because I could have lost the whole wheel on a busy
A road.

After checking I realized that using Nyloc nuts torqued to the standard
tightness was not right. I now, if I use them at all. fit the nuts and test
what torque reading is used just to turn the nut loose on the wheel stud;
it is about 20 pounds-feet in my case. I then add this torque measurement
to give about 85 pounds-feet; 20 for the nut and 65 left to do the job as
originally intended

On Mon, 9 May 2022 at 17:02, Michael Salter <michaelsalter@gmail.com> wrote=
:

> Yep Richard according to the parts books that's correct for 6 cylinder
> cars.
> As a matter of interest the late BN1's and BN2's ( 5 stud hub) use 8 plai=
n
> nuts but call for only 4 spring washers?? Weird ... I'll have to look int=
o
> that one ... there has to be a good reason.
>
> M
>
> On Mon., May 9, 2022, 11:41 a.m. Ricchardd Mayor, <boyracer466@gmail.com>
> wrote:
>
>> Mark,
>>
>> I checked another rear end yesterday that had never been apart and it
>> also has the nyloc nuts and no washers.
>>
>> Richard Mayor
>> boyracer466@gmail.com
>>
>>
>> On May 7, 2022, at 6:21 PM, Michael Oritt via Healeys <
>> healeys@autox.team.net> wrote:
>>
>> Mark--
>>
>> Since the bolts are not--or at least should not--be rotating you don't
>> need lock washers.
>> Yes, you should have flat washers under both the bolt and nut to
>> spread the load.
>>
>> Best--Michael Oritt
>>
>> On Sat, May 7, 2022 at 6:27 PM Mark Donaldson via Healeys <
>> healeys@autox.team.net> wrote:
>>
>>> Learned gentlemen,
>>>
>>>
>>>
>>> When I took the backing plates off the rear axle of my =E2=80=9962 BT7 =
race car
>>> the four bolts each side had Nyloc nuts, with lock washers underneath.
>>>
>>> With the lock washer in place the top of the thread did not connect wit=
h
>>> the nylon =E2=80=93 but it did with the washer removed.
>>>
>>> The parts book shows just the bolts and nuts.  It does not show any
>>> washers.
>>>
>>> As the car was built in Hayward, CA, in the mid-seventies as a track
>>> car, there is much about it which is not standard.
>>>
>>>
>>>
>>> My questions are:
>>>
>>>    1. Are the Nyloc nuts correct and, if not, what should be there?
>>>    2. Is it correct to have no washers under the nuts?  I would have
>>>    though it correct to have at least a thin flat washer, even though t=
he
>>>    parts book appears to show none.
>>>
>>>
>>>
>>> Mark
>>>
>>>
>>>
>>> Ardmore
>>>
>>> NZ
>>>
>>>
>>>
>>> <image002.png>
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<div dir=3D"ltr">Michael<div><br></div><div>This reminds me of=C2=A0a major=
 problem that I had with Nyloc nuts. When I was working on a BN1 rear hub a=
 well-known supplier offered me Nylocs rather than the standard all-metal w=
heel nuts.</div><div><br></div><div>I fitted the nuts=C2=A0and torqued=C2=
=A0up to the usual figure of about 65=C2=A0<span style=3D"color:rgb(0,0,0);=
font-family:Roboto,sans-serif">p</span><span style=3D"color:rgb(0,0,0);font=
-family:Roboto,sans-serif">ou</span><span style=3D"color:rgb(0,0,0);font-fa=
mily:Roboto,sans-serif">nds-feet</span>. After some miles of running the hu=
b extension became loose and started to work through the wheel studs. I man=
aged to stop with only=C2=A0two studs remaining. I was lucky because I coul=
d have lost the whole wheel on a busy A road.</div><div><br></div><div>Afte=
r checking I realized that using Nyloc nuts torqued=C2=A0to the standard ti=
ghtness was not right. I now, if I use them at all. fit the nuts and test w=
hat torque=C2=A0reading is used just to turn the nut loose on the wheel stu=
d; it is about 20=C2=A0<span style=3D"color:rgb(0,0,0);font-family:Roboto,s=
ans-serif">pounds-feet in my case. I then add</span>=C2=A0this torque measu=
rement to give about 85=C2=A0<span style=3D"color:rgb(0,0,0);font-family:Ro=
boto,sans-serif">pounds-feet;</span>=C2=A020 for the nut and 65 left to do =
the job as originally=C2=A0intended</div></div><br><div class=3D"gmail_quot=
e"><div dir=3D"ltr" class=3D"gmail_attr">On Mon, 9 May 2022 at 17:02, Micha=
el Salter &lt;<a href=3D"mailto:michaelsalter@gmail.com";>michaelsalter@gmai=
l.com</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"ma=
rgin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:=
1ex"><div dir=3D"auto">Yep Richard according to the parts books that&#39;s =
correct for 6 cylinder cars.=C2=A0<div dir=3D"auto">As a matter of interest=
 the late BN1&#39;s and BN2&#39;s ( 5 stud hub) use 8 plain nuts but call f=
or only 4 spring washers?? Weird ... I&#39;ll have to look into that one ..=
. there has to be a good reason.</div><div dir=3D"auto"><br></div><div dir=
=3D"auto">M</div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" clas=
s=3D"gmail_attr">On Mon., May 9, 2022, 11:41 a.m. Ricchardd Mayor, &lt;<a h=
ref=3D"mailto:boyracer466@gmail.com"; rel=3D"noreferrer" target=3D"_blank">b=
oyracer466@gmail.com</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quo=
te" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204=
);padding-left:1ex"><div style=3D"overflow-wrap: break-word;">Mark,<div><br=
></div><div>I checked another rear end yesterday that had never been apart =
and it also has the nyloc nuts and no washers.=C2=A0</div><div><br><div>
Richard=C2=A0Mayor<br><a href=3D"mailto:boyracer466@gmail.com"; rel=3D"noref=
errer noreferrer" target=3D"_blank">boyracer466@gmail.com</a><br><br>

</div>
<br><div><blockquote type=3D"cite"><div>On May 7, 2022, at 6:21 PM, Michael=
 Oritt via Healeys &lt;<a href=3D"mailto:healeys@autox.team.net"; rel=3D"nor=
eferrer noreferrer" target=3D"_blank">healeys@autox.team.net</a>&gt; wrote:=
</div><br><div><div dir=3D"ltr"><div class=3D"gmail_default" style=3D"color=
:rgb(51,51,255)">Mark--</div><div class=3D"gmail_default" style=3D"color:rg=
b(51,51,255)"><br></div><div class=3D"gmail_default" style=3D"color:rgb(51,=
51,255)">Since the bolts are not--or at least should not--be rotating you d=
on&#39;t need lock washers.</div><div class=3D"gmail_default" style=3D"colo=
r:rgb(51,51,255)">Yes, you should have flat=C2=A0washers under both the bol=
t and nut to spread=C2=A0the load.</div><div class=3D"gmail_default" style=
=3D"color:rgb(51,51,255)"><br></div><div class=3D"gmail_default" style=3D"c=
olor:rgb(51,51,255)">Best--Michael Oritt</div></div><br><div class=3D"gmail=
_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Sat, May 7, 2022 at 6:27 P=
M Mark Donaldson via Healeys &lt;<a href=3D"mailto:healeys@autox.team.net"; =
rel=3D"noreferrer noreferrer" target=3D"_blank">healeys@autox.team.net</a>&=
gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0=
px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div =
lang=3D"EN-NZ"><div><p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"fo=
nt-size:10pt;font-family:Tahoma,sans-serif">Learned gentlemen,<u></u><u></u=
></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:=
10pt;font-family:Tahoma,sans-serif"><u></u>=C2=A0<u></u></span></p><p class=
=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10pt;font-family:Tah=
oma,sans-serif">When I took the backing plates off the rear axle of my =E2=
=80=9962 BT7 race car the four bolts each side had Nyloc nuts, with lock wa=
shers underneath.<u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=
=3D"EN-US" style=3D"font-size:10pt;font-family:Tahoma,sans-serif">With the =
lock washer in place the top of the thread did not connect with the nylon =
=E2=80=93 but it did with the washer removed.<u></u><u></u></span></p><p cl=
ass=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10pt;font-family:=
Tahoma,sans-serif">The parts book shows just the bolts and nuts.=C2=A0 It d=
oes not show any washers.<u></u><u></u></span></p><p class=3D"MsoNormal"><s=
pan lang=3D"EN-US" style=3D"font-size:10pt;font-family:Tahoma,sans-serif">A=
s the car was built in Hayward, CA, in the mid-seventies as a track car, th=
ere is much about it which is not standard.<u></u><u></u></span></p><p clas=
s=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10pt;font-family:Ta=
homa,sans-serif"><u></u>=C2=A0<u></u></span></p><p class=3D"MsoNormal"><spa=
n lang=3D"EN-US" style=3D"font-size:10pt;font-family:Tahoma,sans-serif">My =
questions are:=C2=A0 <u></u><u></u></span></p><ol style=3D"margin-top:0cm" =
start=3D"1" type=3D"1"><li style=3D"margin-left:0cm"><span lang=3D"EN-US" s=
tyle=3D"font-size:10pt;font-family:Tahoma,sans-serif">Are the Nyloc nuts co=
rrect and, if not, what should be there?<u></u><u></u></span></li><li style=
=3D"margin-left:0cm"><span lang=3D"EN-US" style=3D"font-size:10pt;font-fami=
ly:Tahoma,sans-serif">Is it correct to have no washers under the nuts?=C2=
=A0 I would have though it correct to have at least a thin flat washer, eve=
n though the parts book appears to show none.<u></u><u></u></span></li></ol=
><p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10pt;font-f=
amily:Tahoma,sans-serif"><u></u>=C2=A0<u></u></span></p><p class=3D"MsoNorm=
al"><span lang=3D"EN-US" style=3D"font-size:10pt;font-family:Tahoma,sans-se=
rif">Mark<u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-U=
S" style=3D"font-size:10pt;font-family:Tahoma,sans-serif"><u></u>=C2=A0<u><=
/u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-siz=
e:10pt;font-family:Tahoma,sans-serif">Ardmore<u></u><u></u></span></p><p cl=
ass=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10pt;font-family:=
Tahoma,sans-serif">NZ<u></u><u></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" style=3D"font-size:10pt;font-family:Tahoma,sans-serif"><u></=
u>=C2=A0<u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" style=
=3D"font-size:10pt;font-family:Tahoma,sans-serif">&lt;image002.png&gt;</spa=
n><span lang=3D"EN-US" style=3D"font-size:10pt;font-family:Tahoma,sans-seri=
f"><u></u><u></u></span></p></div></div>___________________________________=
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