We have seen galling as well, but only a few times. Like Dennis points out, it is largely dependent on the type of stainless fastener and what you use for locking/anti-seize. A good locking fluid is tricky on exhaust as it will usually burn off. We switched to mild steel exhaust header to downpipe nuts, and we use nord-locks for locking as they are the best solution for a high transient temps and thermal expansion combined when also dealing with fully coupled engine vibration. Check out the post about them and the nordlock video: http://bostig.net/index.php?option=com_content&task=view&id=26&Itemid=2 Jim -----Original Message----- From: John Reddick [mailto:SVYOLO@YAHOO.COM] Sent: Saturday, April 21, 2007 7:47 AM To: vanagon@GERRY.VANAGON.COM Subject: Re: Source for Stainless Exhaust Hardware? SS nuts and bolts on exhaust will still have to be cut off after a short time due to galling. We did it once after 500 miles. Every single nut and bolt was galled and seized. Every one. John Vanaru.com |
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