Date: Mon, 1 Jan 2024 15:43:33 -0500
Reply-To: Eric Caron <ericcaron96@COMCAST.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Eric Caron <ericcaron96@COMCAST.NET>
Subject: Re: CV bolt rounded -- what to do?
In-Reply-To: <d559b3ce-7b37-49df-adc9-754ec7f6970b@app.fastmail.com>
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Congratulations!
And I am saving this thread as I suspect these tricks can help in other situations.
What great info.
And, thanks Rick for reporting back your progress and this goes down as a big group list success! On New Years as well! Very auspicious!
Eric Caron
> On Jan 1, 2024, at 3:17 PM, Rick Cooper <rick@WEBLEAF.CA> wrote:
>
> Success at last! Thanks everyone for the range of options -- I was amazed at all of the ideas, most of which I had never considered and/or thought impossible.
>
> I started with the simplest, Mark's suggestion of driving a 1/4" hex into the rounded off 6mm socket. All the while trying to keep in mind the caution that I should not hammer to hard -- I addressed that in part by using an 8oz hammer with lots of small taps. This almost worked but the metal gave at the last moment.
>
> So onto the next simplest -- Karl's suggestion of using a 8mm Triple Square bit (I think the one I used is triple square, it has about 12 splines? Torx has around 6 splines, if I'm correct.) That worked! Came out so smoothly I suspect the 1/4" drive attempt just before helped to break it.
>
> I had played around on the bench with using a 12-point 12mm socket. I think that too would have worked but I would have had to hammer quite a bit harder to get it on.
>
> Anyway, now onto replacing the joints. Which I am going to have to do judging from the pitting on the ball hubs and races. Our local dedicated VW parts shop has these https://vanagonwestfaliaparts.com/products/cv-joint-kit?variant=29737033793 at $95CAN, which is very roughly equivalent to $65US, and I can pick them up. I think they are Lobros but I will need to confirm that.
>
> Thanks again for the help.
>
> Rick
>
>
> On Mon, Jan 1, 2024, at 10:49 AM, OlRivrRat wrote:
>> I’m not familiar the hammering in of an allen or torx bit but the amount of
>>
>> hammering on that is needed to secure a socket on the outside of the bolt head
>>
>> is surprising slight & I am somewhat sure that longitudinal forces that happen
>>
>> upon the Axles are arrested by thrust bearing surfaces & probably not the roller
>>
>> bearing chases but even if I’m incorrect on that point, the Axles have some end
>>
>> play when properly installed so what ever it is that they hammer up against on
>>
>> the kinds of drives We like to subject them to can apparently take a beating ~
>>
>>
>>> On 1 Jan , 2024, at 8:24 AM, Ray Brubaker <rayandmerle@GMAIL.COM> wrote:
>>>
>>> Be aware! Any hammering on this bolt goes through the ball bearing that is
>>> part of the wheel bearing system. Heavy hammering can cause the balls to
>>> dent the races causing shorter bearing life. These are robust bearings but
>>> no bearing should be hammered on if you want it to have a long life.
>>>
>>> Ray
>>>
>>> On Sun, Dec 31, 2023 at 9:15 PM Mark Drillock <madvws@cox.net> wrote:
>>>
>>>> The 6mm allen bit is slightly smaller than 1/4".
>>>> I buy a 1/4" allen bit, file a slight taper on the 6 edges of the tip.
>>>> Then hammer it into the rounded out 6mm hole, using heavy blows.
>>>> Then unscrew the bolt.
>>>>
>>>> VW used many 6mm allen bolts on many of their vehicles.
>>>> I have used this method lots of times, including CV bolts.
>>>>
>>>> Mark
>>>>
>>>> On 12/31/2023 5:08 PM, Rick Cooper wrote:
>>>>> Hi all,
>>>>>
>>>>> I've got a noisy CV joint and thought I would remove and repair it
>>>> today. But I managed to round off one of the twelve 6mm Allen socket-head
>>>> bolts so that I cannot break the last bolt free. Unfortunately it is on
>>>> the outside CV joint so it inaccessible by most tools.
>>>>>
>>>>> Has anyone had this experience and can offer any advice? Am I stuck
>>>> drilling out/off the head of the bolt? And then how do I remove the shaft
>>>> from the wheel assembly since it will be challenging, even with joint out
>>>> of the way, to get a good hold on it with vice-grips?
>>>>>
>>>>> Thanks for any help.
>>>>>
>>>>> Rc
>>>>
>>
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