Date: Wed, 17 Jan 2007 17:54:38 -0700
Reply-To: Tom Buese <tombuese@COMCAST.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Tom Buese <tombuese@COMCAST.NET>
Subject: Re: Warning! Do not use...
In-Reply-To: <CAEOIPKOOCKNBBDDDMBPEEKBNIAA.jeff@vanagonparts.com>
Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed
On Jan 17, 2007, at 3:28 PM, Jeffrey Schwaia wrote:
> John,
>
> You mean something like this:
>
> http://www.vanagonparts.com/temp/nuts.jpg
>
> Exhaust Lock Nut (VW #: 059 129 601)
>
> About $0.25/each
>
> For some reason, very few mechanics seem to use them.
Yep, I replaced all my exhaust nuts w/ those guys ordered from Van
Cafe, I believe. Seems to work well, but they have only been on for
a couple of months. My mechanic had not seen them either, but they
appear to be a stock item for our exhausts?
Do you stock em, Jeff?
Tom B.-always the right piece for the job?
>
> Cheers,
>
> Jeff
> www.vanagonparts.com
>
>
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM]On Behalf
> Of John Rodgers
> Sent: Wednesday, January 17, 2007 1:59 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: Warning! Do not use...
>
>
> Geza Polony wrote:
>> stainless steel bolts on your muffler/catalytic converter.
>>
>> The more experienced among us know this already. I thought I'd
>> beat the
>> corrosion problem by using M8 stainless bolts and nuts for my new Bus
> Depot
>> cat and muffler. Once they heat up, there's no way to loosen them.
>> I don't
>> know what happens to the steel, but it sure isn't any labor saver.
>> The
> heads
>> just break of when you crank them. So much for good intentions.
>>
>>
>>
> This may not relate, but on airplanes with piston engines, specially
> treated steel nuts are sometime used on exhaust studs OR special brass
> nuts are used. I think the nuts were more bronze than brass. In my
> experience the brass nuts were the nuts of choice, because experience
> taught that even the specially treated steel nuts could give trouble.
> Anti-seize was not used with brass nuts because they would be
> subject to
> backing off due to vibration. But the friction of the brass on the
> steel
> was sufficient to hold them in place, yet the brass was soft enough
> that
> when it came time to remove them they would turn loose of the stud
> they
> were mounted on. Sometime brass was left on the stud, but the stud
> would
> not be damaged. Far better to discard a brass nut, and clean the stud
> threads, than try to replace an exhaust stud - especially with the
> cylinder still on the engine and the engine in that airplane. It might
> be worth trying them on the WBX unless someone knows a specific reason
> why not to.
>
> Regards,
>
> John Rodgers
> 88 GL Driver
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