CV Joints on my bus

Hello again.

Some of you may recall I had trouble with, and replaced my CV joint on
my 68 Bay.

I was under the bus today ( as you do :-) ) and noticed the cv joint
bolts were loose. Again ! I have tightened them up a few times.

Are they supposed to use shake proof washers or something ? or should I
have used new bolts when I replaced the joint ?

TIA

Rich

"tricky" > wrote in message
...
> Hello again.
>
> Some of you may recall I had trouble with, and replaced my CV joint on
> my 68 Bay.
>
> I was under the bus today ( as you do :-) ) and noticed the cv joint
> bolts were loose. Again ! I have tightened them up a few times.
>
> Are they supposed to use shake proof washers or something ? or should I
> have used new bolts when I replaced the joint ?
>
> TIA
>
> Rich

use a thread locker.....i can't tell you how many times i've had cv bolts
back out on me...make a terrible clunking if you let em go too far..heh...i
have even had them back out with "loctite" type thread lockers...never had
one back out on its own, nor hard for me to remove(on purpose) if you clean
the bolts and holes(as you would if you were gonna use loctite) and put just
a small smear of RTV on the end, then install.....can't tell ya why(unless
it has to do with the elasticitiy of the RTV absorbing shock) but it always
worked....haven't had a loose cv bolt in over ten years...

Getting the treads clean enough to use a thread lock sealer doesnt sound
like an easy fix ? sounds like stripping it all down ?

I also noticed as I tightened the bolts, grit had got into the threads.
you could hear/feel it as I tightened them up. It crossed my mind I
ought to strip the CV down and clean it well , in case grit had got in.
Any views ?

Rich


Joey Tribiani wrote:

> "tricky" > wrote in message
> ...
>
>>Hello again.
>>
>>Some of you may recall I had trouble with, and replaced my CV joint on
>>my 68 Bay.
>>
>>I was under the bus today ( as you do :-) ) and noticed the cv joint
>>bolts were loose. Again ! I have tightened them up a few times.
>>
>>Are they supposed to use shake proof washers or something ? or should I
>>have used new bolts when I replaced the joint ?
>>
>>TIA
>>
>>Rich
>
>
> use a thread locker.....i can't tell you how many times i've had cv bolts
> back out on me...make a terrible clunking if you let em go too far..heh...i
> have even had them back out with "loctite" type thread lockers...never had
> one back out on its own, nor hard for me to remove(on purpose) if you clean
> the bolts and holes(as you would if you were gonna use loctite) and put just
> a small smear of RTV on the end, then install.....can't tell ya why(unless
> it has to do with the elasticitiy of the RTV absorbing shock) but it always
> worked....haven't had a loose cv bolt in over ten years...
>
>

"tricky" > wrote in message
...
> Getting the treads clean enough to use a thread lock sealer doesnt sound
> like an easy fix ? sounds like stripping it all down ?
>
> I also noticed as I tightened the bolts, grit had got into the threads.
> you could hear/feel it as I tightened them up. It crossed my mind I
> ought to strip the CV down and clean it well , in case grit had got in.
> Any views ?
>

brake cleaner(in a can) is your friend...disconnect the cv and use the
can(with pipette) to clean the threaded holes, then remove the bolts and
spray them.....if the bolts are real dirty a wire brush will help....when
you slide them back through the cv you *will* get some fresh grease on them,
do not use the brake clean as a spray to get that off, you run the chance of
diluting the cv grease...put some on a rag and rub it off the threads that
stick through...this is plenty enough to get a locking compound to
work....only takes about ten minutes per side....i don't think you have to
worry about "grit" having gotten into the cv, unless you really just kinda
dropped it in the dirt....LOL....

tricky wrote:

> Getting the treads clean enough to use a thread lock sealer doesnt sound
> like an easy fix ? sounds like stripping it all down ?
>
> I also noticed as I tightened the bolts, grit had got into the threads.
> you could hear/feel it as I tightened them up. It crossed my mind I
> ought to strip the CV down and clean it well , in case grit had got in.
> Any views ?
>
> Rich


Forget the recommended torque. If enough of them
get loose, the bolts will actually shear off.
You can't imagine how much damage a CV hurtling around
will do (till it happens to you!).

I use a small air impact wrench to make sure they're
fully seated. Grease on the flat mating surfaces can be
a factor; as it squeezes out later, the bolts will loosen.

Speedy Jim
http://www.nls.net/mp/volks/


>
>
> Joey Tribiani wrote:
>
>> "tricky" > wrote in message
>> ...
>>
>>> Hello again.
>>>
>>> Some of you may recall I had trouble with, and replaced my CV joint on
>>> my 68 Bay.
>>>
>>> I was under the bus today ( as you do :-) ) and noticed the cv joint
>>> bolts were loose. Again ! I have tightened them up a few times.
>>>
>>> Are they supposed to use shake proof washers or something ? or should I
>>> have used new bolts when I replaced the joint ?
>>>
>>> TIA
>>>
>>> Rich
>>
>>
>>
>> use a thread locker.....i can't tell you how many times i've had cv bolts
>> back out on me...make a terrible clunking if you let em go too
>> far..heh...i
>> have even had them back out with "loctite" type thread lockers...never
>> had
>> one back out on its own, nor hard for me to remove(on purpose) if you
>> clean
>> the bolts and holes(as you would if you were gonna use loctite) and
>> put just
>> a small smear of RTV on the end, then install.....can't tell ya
>> why(unless
>> it has to do with the elasticitiy of the RTV absorbing shock) but it
>> always
>> worked....haven't had a loose cv bolt in over ten years...
>>
>>

torque

That sounds easy :-)

I have an impact wrench. So far I have just been using an allen wrench
(the same I used to undo them when they were tight ) and doing them as
tight as I could by hand. Thanks Jim

If that doesnt work, I will try the thread lock. I have some, just didnt
know how to get the threads clean enough without stripping ! Thanks Joey
( sorry, Cant remember your real name at the mo. )

Rich


Speedy Jim wrote:

> tricky wrote:
>
>> Getting the treads clean enough to use a thread lock sealer doesnt
>> sound like an easy fix ? sounds like stripping it all down ?
>>
>> I also noticed as I tightened the bolts, grit had got into the
>> threads. you could hear/feel it as I tightened them up. It crossed my
>> mind I ought to strip the CV down and clean it well , in case grit had
>> got in.
>> Any views ?
>>
>> Rich
>
>
>
> Forget the recommended torque. If enough of them
> get loose, the bolts will actually shear off.
> You can't imagine how much damage a CV hurtling around
> will do (till it happens to you!).
>
> I use a small air impact wrench to make sure they're
> fully seated. Grease on the flat mating surfaces can be
> a factor; as it squeezes out later, the bolts will loosen.
>
> Speedy Jim
> http://www.nls.net/mp/volks/
>
>
>>
>>
>> Joey Tribiani wrote:
>>
>>> "tricky" > wrote in message
>>> ...
>>>
>>>> Hello again.
>>>>
>>>> Some of you may recall I had trouble with, and replaced my CV joint on
>>>> my 68 Bay.
>>>>
>>>> I was under the bus today ( as you do :-) ) and noticed the cv joint
>>>> bolts were loose. Again ! I have tightened them up a few times.
>>>>
>>>> Are they supposed to use shake proof washers or something ? or should I
>>>> have used new bolts when I replaced the joint ?
>>>>
>>>> TIA
>>>>
>>>> Rich
>>>
>>>
>>>
>>>
>>> use a thread locker.....i can't tell you how many times i've had cv
>>> bolts
>>> back out on me...make a terrible clunking if you let em go too
>>> far..heh...i
>>> have even had them back out with "loctite" type thread
>>> lockers...never had
>>> one back out on its own, nor hard for me to remove(on purpose) if you
>>> clean
>>> the bolts and holes(as you would if you were gonna use loctite) and
>>> put just
>>> a small smear of RTV on the end, then install.....can't tell ya
>>> why(unless
>>> it has to do with the elasticitiy of the RTV absorbing shock) but it
>>> always
>>> worked....haven't had a loose cv bolt in over ten years...
>>>
>>>

"Speedy Jim" > wrote in message
...
>
>
> Forget the recommended torque. If enough of them
> get loose, the bolts will actually shear off.
> You can't imagine how much damage a CV hurtling around
> will do (till it happens to you!).
>

i can say that *I* know what happens when the cv joint comes free from the
axle stub and beats everything within its reach all to pieces...LOL...

"tricky" > wrote in message
...
Thanks Joey
> ( sorry, Cant remember your real name at the mo. )

no problem Rich, hope it all works out...

Chris

On Wed, 13 Apr 2005 19:44:36 GMT tricky >
wrote:

>I was under the bus today ( as you do :-) ) and noticed the cv joint
>bolts were loose. Again ! I have tightened them up a few times.

>Are they supposed to use shake proof washers or something ? or should I
>have used new bolts when I replaced the joint ?

There were special serrated washers originally supplied, but they were
discontinued as unnecessary at some point in the 70s. The later bolts
were shorter by 1mm. I think you'll find the details in the Bentley
manual.

There are 2 things that can cause them to loosen up.

You need to clean all dirt off any of the mating faces before you mate
them back together. If you leave any kind of grit in there it will
break down under the oscillating load of the working CV joint and this
will release the tension on the bolt. Once the tension is gone, the
game is over. Grease and oil on those surfaces are no problem, since
they are fluids and squeeze out as the bolts are torqued.

You MUST use a torque wrench on these bolts. You will never get them
tight enough by hand. You can test this for yourself by tightening
them as you have been and then trying the torque wrench on them.
You'll quickly learn where you really stand.

Threadlockers are unnecessary and will be difficult to get to work
there anyway since, as you already pointed out, everything there is
pretty oily.

-
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Jim Adney
Madison, WI 53711 USA
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